CN107360544B - The position of mobile equipment control method and device of dynamic noise based on Signal to Interference plus Noise Ratio - Google Patents

The position of mobile equipment control method and device of dynamic noise based on Signal to Interference plus Noise Ratio Download PDF

Info

Publication number
CN107360544B
CN107360544B CN201710542121.2A CN201710542121A CN107360544B CN 107360544 B CN107360544 B CN 107360544B CN 201710542121 A CN201710542121 A CN 201710542121A CN 107360544 B CN107360544 B CN 107360544B
Authority
CN
China
Prior art keywords
signal
mobile device
capacity
communication system
secrecy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710542121.2A
Other languages
Chinese (zh)
Other versions
CN107360544A (en
Inventor
谢宁
梁远
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen University
Original Assignee
Shenzhen University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen University filed Critical Shenzhen University
Priority to CN201710542121.2A priority Critical patent/CN107360544B/en
Publication of CN107360544A publication Critical patent/CN107360544A/en
Application granted granted Critical
Publication of CN107360544B publication Critical patent/CN107360544B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/43—Jamming having variable characteristics characterized by the control of the jamming power, signal-to-noise ratio or geographic coverage area
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/80—Jamming or countermeasure characterized by its function
    • H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/20—Communication route or path selection, e.g. power-based or shortest path routing based on geographic position or location
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/46—TPC being performed in particular situations in multi hop networks, e.g. wireless relay networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention provides a kind of position of mobile equipment control method and device of dynamic noise based on Signal to Interference plus Noise Ratio, this method comprises: determine communication system (n+1) time slot the first secrecy capacity relative to communication system the second secrecy capacity of nth slot the first variation tendency, determine the second variation tendency that mobile device eavesdrops capacity the second of nth slot relative to mobile device in the first eavesdropping capacity of (n+1) time slot, determine mobile device in the Signal to Interference plus Noise Ratio SINR of same time received signal, according to the first variation tendency, second variation tendency and SINR, adjust the transimission power of target end equipment transmission people work noise signal；According to the first variation tendency, feedback information is sent to mobile device.The embodiment of the present invention can control the shift position of mobile device according to feedback information, meanwhile, the secrecy capacity of communication system is advanced optimized by adaptively adjusting the power of man made noise's signal, is continued for secure communication.

Description

The position of mobile equipment control method and device of dynamic noise based on Signal to Interference plus Noise Ratio
Technical field
The present invention relates to fields of communication technology, more particularly to the position of mobile equipment control of the dynamic noise based on Signal to Interference plus Noise Ratio Method and device processed.
Background technique
With wireless communication bring convenience, people in daily life will largely using wireless network carry out it is sensitive and Private information transmission.Conventional wireless network guarantees the safety of information by higher-layer encryption technology, assumes that eavesdropping end (is moved Dynamic equipment) computing capability be limited.However, the computing capability for eavesdropping end is continuous with the high speed development of distributed computing It improves, this hypothesis has become more and more unreliable.And safety of physical layer technology is receive more and more attention, utilizes Legal target end equipment has better signal receiving quality (such as signal-to-noise ratio) than eavesdropping end, to guarantee the safety of communication, Avoid relying on the limited hypothesis of eavesdropping end computing capability.
Collaboration communication method mainly includes the side such as relay selection and cooperation man made noise in existing safety of physical layer technology Method.Relay selection can be and choosing set objective end " strong " transmission link to eavesdropping in end " weak " transmission link After improving secrecy capacity.However, there is also the performances of obvious shortcoming, such as relay selection method for existing collaboration communication method It is limited to the spatial position of relaying.
Summary of the invention
The embodiment of the invention discloses the position of mobile equipment control method and device of the dynamic noise based on Signal to Interference plus Noise Ratio, The shift position of mobile device can be controlled according to feedback information, meanwhile, by the function for adaptively adjusting man made noise's signal Rate advanced optimizes the secrecy capacity of communication system, is continued for secure communication.
First aspect of the embodiment of the present invention discloses a kind of position of mobile equipment control of dynamic noise based on Signal to Interference plus Noise Ratio Method, applied to the target end equipment that communication system includes, the communication system further includes the mobile device and source equipment, The described method includes:
Determine the communication system (n+1) time slot the first secrecy capacity relative to the communication system n-th when First variation tendency of the second secrecy capacity of gap, wherein second secrecy capacity be the communication system nth slot most Good secrecy capacity, (n+1) time slot are current time slots, and the nth slot is a upper time slot for the current time slots, The n is positive integer；
Determine the mobile device (n+1) time slot first eavesdropping capacity relative to the mobile device n-th when Gap second eavesdropping capacity the second variation tendency, wherein it is described second eavesdropping capacity be the mobile device nth slot most Good eavesdropping capacity；
Determine the mobile device in the Signal to Interference plus Noise Ratio SINR of same time received signal, wherein the movement is set Standby in same time received signal includes from man made noise's signal of the target end equipment and from the source The useful signal of end equipment；
According to first variation tendency, second variation tendency and the SINR, the target end equipment is adjusted Transmit the transimission power of man made noise's signal；
According to first variation tendency, Xiang Suoshu mobile device sends feedback information, to control the mobile device Shift position, the feedback information are used to indicate that the secrecy capacity of the communication system to be promoted or declined.
As an alternative embodiment, in first aspect of the embodiment of the present invention, the method also includes:
The size for comparing first secrecy capacity Yu second secrecy capacity, by first secrecy capacity with it is described The biggish secrecy capacity of numerical value is determined as the communication system in the optimal secrecy appearance of (n+1) time slot in second secrecy capacity Amount；And
Compare it is described first eavesdropping capacity and it is described second eavesdropping capacity size, will it is described first eavesdrop capacity with it is described The biggish eavesdropping capacity of numerical value is determined as the communication system in the optimal eavesdropping appearance of (n+1) time slot in second eavesdropping capacity Amount；
The communication system is saved in the optimal secrecy capacity of (n+1) time slot and the communication system at (n+1) The optimal eavesdropping capacity of time slot.
As an alternative embodiment, in first aspect of the embodiment of the present invention, it is described according to first variation Trend, second variation tendency and the SINR adjust the biography that the target end equipment transmits man made noise's signal Defeated power includes:
If first variation tendency indicates that the secrecy capacity of the communication system is promoted, determine
If first variation tendency indicates that the secrecy capacity of the communication system is not promoted, and second variation tendency It indicates that the eavesdropping capacity of the mobile device does not decline, determines
If first variation tendency indicates that the secrecy capacity of the communication system is not promoted, and second variation tendency The eavesdropping capacity decline for indicating the mobile device, determines
Wherein, the PDIt (n+1) is the biography of target end equipment man made noise's signal described in (n+1) slot transmission Defeated power, the PD(n) transimission power of man made noise's signal is transmitted in nth slot for the target end equipment；It is described γRIt (n+1) is SINR of the mobile device in (n+1) time slot received signal, the γRIt (n) is the mobile device It is modifying factor in the SINR of nth slot received signal, the α and is fixed value.
As an alternative embodiment, in first aspect of the embodiment of the present invention, the determination communication system (n+1) time slot the first secrecy capacity relative to the communication system nth slot the second secrecy capacity first become Before change trend, the method also includes:
Artificial noise signal is sent to the mobile device；
The processing signal of the mobile device forwarding is received, the processing signal is that the mobile device is manually made an uproar described Acoustical signal carries out that treated with the useful signal received from the source equipment in the same time signal；
The useful signal is obtained from the processing signal.
Second aspect of the embodiment of the present invention discloses a kind of position of mobile equipment control of dynamic noise based on Signal to Interference plus Noise Ratio Method, applied to the mobile device that communication system includes, the communication system further includes source equipment and target end equipment, described Method includes:
The useful signal that the source equipment is sent is received in the same time and the artificial of target end equipment transmission is made an uproar Acoustical signal；
The useful signal and man made noise's signal are handled, obtain processing signal, and the processing is believed Number it is transmitted to the target end equipment；
The feedback information that the target end equipment is returned for the processing signal is received, the feedback information is for indicating The secrecy capacity of the communication system is promoted or decline；
Shift position is determined according to the eavesdropping capacity of the feedback information and the mobile device, and from the mobile device The position being presently in is moved to the shift position.
As an alternative embodiment, in second aspect of the embodiment of the present invention, it is described according to the feedback information Determine that shift position includes: with the eavesdropping capacity of the mobile device
If the feedback information is used to indicate that the secrecy capacity of the communication system to be promoted, and the eavesdropping of the mobile device Capacity does not decline, and current moving step length is increased to first movement step-length；The position being presently according to the mobile device And the first movement step-length, determine shift position；
If the feedback information is used to indicate the secrecy capacity decline of the communication system, current moving step length is reduced To the second moving step length；The position being presently according to the mobile device and second moving step length determine mobile position It sets.
The third aspect of the embodiment of the present invention discloses a kind of position of mobile equipment control device, runs on what communication system included Target end equipment, comprising:
Determination unit, for determining that the communication system is led in first secrecy capacity of (n+1) time slot relative to described First variation tendency of the letter system in the second secrecy capacity of nth slot, wherein second secrecy capacity is the communication system For system in the optimal secrecy capacity of nth slot, (n+1) time slot is current time slots, and the nth slot is the current time slots A upper time slot, the n be positive integer；
The determination unit, be also used to determine the mobile device (n+1) time slot first eavesdropping capacity relative to Second variation tendency of the mobile device in the second eavesdropping capacity of nth slot, wherein the second eavesdropping capacity is described Mobile device is in the optimal eavesdropping capacity of nth slot；
The determination unit is also used to obtain the mobile device in the Signal to Interference plus Noise Ratio of same time received signal SINR, wherein the mobile device includes manually making an uproar from the target end equipment in same time received signal Acoustical signal and useful signal from the source equipment；
Adjustment unit, for adjusting institute according to first variation tendency, second variation tendency and the SINR State the transimission power that target end equipment transmits man made noise's signal；
First transmission unit, for according to first variation tendency, Xiang Suoshu mobile device to send feedback information, with control Make the shift position of the mobile device, the feedback information be used to indicate the secrecy capacity of the communication system promoted or under Drop.
As an alternative embodiment, in the third aspect of the embodiment of the present invention, the position of mobile equipment control Device further include:
Compare determination unit, it, will be described for the size of first secrecy capacity and second secrecy capacity The biggish secrecy capacity of numerical value is determined as the communication system at (n+1) in first secrecy capacity and second secrecy capacity The optimal secrecy capacity of time slot；
The relatively determination unit is also used to the size of the first eavesdropping capacity described in comparison and the second eavesdropping capacity, The biggish eavesdropping capacity of numerical value in the first eavesdropping capacity and the second eavesdropping capacity is determined as the communication system to exist The optimal eavesdropping capacity of (n+1) time slot；
Storage unit, for saving the communication system in the optimal secrecy capacity of (n+1) time slot and the communication System is in the optimal eavesdropping capacity of (n+1) time slot.
As an alternative embodiment, the adjustment unit is according in the third aspect of the embodiment of the present invention First variation tendency, second variation tendency and the SINR adjust the target end equipment and transmit the man made noise The mode of the transimission power of signal specifically:
If first variation tendency indicates that the secrecy capacity of the communication system is promoted, determine
If first variation tendency indicates that the secrecy capacity of the communication system is not promoted, and second variation tendency It indicates that the eavesdropping capacity of the mobile device does not decline, determines
If first variation tendency indicates that the secrecy capacity of the communication system is not promoted, and second variation tendency The eavesdropping capacity decline for indicating the mobile device, determines
Wherein, the PDIt (n+1) is the biography of target end equipment man made noise's signal described in (n+1) slot transmission Defeated power, the PD(n) transimission power of man made noise's signal is transmitted in nth slot for the target end equipment；It is described γRIt (n+1) is SINR of the mobile device in (n+1) time slot received signal, the γRIt (n) is the mobile device It is modifying factor in the SINR of nth slot received signal, the α and is fixed value.
As an alternative embodiment, in the third aspect of the embodiment of the present invention, the position of mobile equipment control Device further include:
Second transmission unit, for determining that the communication system is protected the first of (n+1) time slot in the determination unit Close capacity relative to the communication system before the first variation tendency of the second secrecy capacity of nth slot, to the movement Equipment sends man made noise's signal；
Receiving unit, for receiving the processing signal of the mobile device forwarding, the processing signal is that the movement is set For man made noise's signal is carried out with the useful signal received in the same time from the source equipment, treated believes Number；
Acquiring unit, for obtaining the useful signal from the processing signal.
A kind of position of mobile equipment control device is disclosed in terms of the embodiment of the present invention four, runs on the shifting that communication system includes Dynamic equipment, comprising:
Receiving unit, for receiving the useful signal and the target end equipment that the source equipment is sent in the same time Man made noise's signal of transmission；
Transmission unit is handled, for handling the useful signal and man made noise's signal, obtains processing letter Number, and the processing signal is transmitted to the target end equipment；
The receiving unit is also used to receive the feedback information that the target end equipment is returned for the processing signal, The feedback information is used to indicate that the secrecy capacity of the communication system to be promoted or declined；
Determination unit, for determining shift position according to the eavesdropping capacity of the feedback information and the mobile device；
Mobile unit, for being moved to the shift position from the position that the mobile device is presently in.
As an alternative embodiment, the determination unit is according in fourth aspect of the embodiment of the present invention Feedback information and the eavesdropping capacity of the mobile device determine the mode of shift position specifically:
If the feedback information is used to indicate that the secrecy capacity of the communication system to be promoted, and the eavesdropping of the mobile device Capacity does not decline, and current moving step length is increased to first movement step-length；The position being presently according to the mobile device And the first movement step-length, determine shift position；
If the feedback information is used to indicate the secrecy capacity decline of the communication system, current moving step length is reduced To the second moving step length；The position being presently according to the mobile device and second moving step length determine mobile position It sets.
Compared with prior art, the embodiment of the present invention have it is following the utility model has the advantages that
In the embodiment of the present invention, target end equipment can determine the communication system in first secrecy of (n+1) time slot Capacity, in the first variation tendency of the second secrecy capacity of nth slot, and determines the movement relative to the communication system Equipment (n+1) time slot the first eavesdropping capacity relative to the mobile device nth slot the second eavesdropping capacity the Two variation tendencies, further, target end equipment determine that the mobile device dry is made an uproar in the letter of same time received signal After SINR, target end equipment can according to first variation tendency, second variation tendency and the SINR, The transimission power that the target end equipment transmits man made noise's signal is adjusted, and according to first variation tendency, to institute It states mobile device and sends feedback information, to control the shift position of the mobile device.As it can be seen that implementing the embodiment of the present invention, mesh Marking end equipment can be according to the eavesdropping capacity of the variation tendency of the secrecy capacity of communication system (promoted or decline), mobile device Variation tendency (promoted or declined) and mobile device adaptively to adjust artificial in the SINR of same time received signal The power of noise signal, and the shift position of mobile device is controlled according to feedback information, meanwhile, it is artificial by adaptively adjusting The power of noise signal advanced optimizes the secrecy capacity of communication system, is continued for secure communication.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached Figure.
Fig. 1 is a kind of model of communication system schematic diagram disclosed by the embodiments of the present invention；
Fig. 2 is a kind of position of mobile equipment controlling party of dynamic noise based on Signal to Interference plus Noise Ratio disclosed by the embodiments of the present invention The flow diagram of method；
Fig. 3 is the position of mobile equipment control of another dynamic noise based on Signal to Interference plus Noise Ratio disclosed by the embodiments of the present invention The flow diagram of method；
Fig. 4 is the position of mobile equipment control of another dynamic noise based on Signal to Interference plus Noise Ratio disclosed by the embodiments of the present invention The flow diagram of method；
Fig. 5 is a kind of message capacity disclosed by the embodiments of the present invention, secrecy capacity, the convergence graph for eavesdropping capacity；
Fig. 6 is a kind of structural schematic diagram of position of mobile equipment control device disclosed by the embodiments of the present invention；
Fig. 7 is the structural schematic diagram of another position of mobile equipment control device disclosed by the embodiments of the present invention；
Fig. 8 is the structural schematic diagram of another position of mobile equipment control device disclosed by the embodiments of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts Example is applied, shall fall within the protection scope of the present invention.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing and " the Two " etc. are not use to describe a particular order for distinguishing different objects.In addition, term " includes " and " having " and it Any deformation, it is intended that cover and non-exclusive include.Such as it contains the process, method of a series of steps or units, be System, product or equipment are not limited to listed step or unit, but optionally further comprising the step of not listing or list Member, or optionally further comprising other step or units intrinsic for these process, methods, product or equipment.
The embodiment of the invention discloses the position of mobile equipment control method and device of the dynamic noise based on Signal to Interference plus Noise Ratio, The power that man made noise's signal can adaptively be adjusted controls the shift position of mobile device more flexiblely, further excellent The secrecy capacity for changing communication system, is continued for secure communication.Attached drawing is combined below to be described in detail.
Referring to Figure 1, Fig. 1 is a kind of model of communication system schematic diagram disclosed by the embodiments of the present invention.As shown in Figure 1, The communication system includes that source equipment S, mobile device R and target end equipment D can also include optionally interception facility E.
Wherein, source equipment S be mainly used for send useful signal, source equipment S can include but is not limited to base station with And user equipment.Base station (such as access point), which can be, to be referred to the accession in net in the sky on interface by one or more sectors and nothing The equipment of line terminal communication.The air frame that base station can be used for receive and IP grouping are mutually converted, as wireless terminal and Access the router between the rest part of net, wherein the rest part for accessing net may include Internet protocol (IP) network.Base station It can also coordinate the attribute management to air interface.For example, base station can be base station (BTS, Base in GSM or CDMA Transceiver Station), it is also possible to the base station (NodeB) in WCDMA, can also be the evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), the embodiment of the present invention is without limitation.User equipment can wrap Include but be not limited to smart phone, laptop, personal computer (Personal Computer, PC), personal digital assistant (Personal Digital Assistant, PDA), mobile internet device (Mobile Internet Device, MID), Wearable device (such as smartwatch, Intelligent bracelet, intelligent glasses) each class of electronic devices, wherein the operation system of the user equipment System may include but be not limited to Android operation system, IOS operating system, Symbian (Saipan) operating system, Black Berry (blackberry, blueberry) operating system, Windows Phone8 operating system etc., the embodiment of the present invention is without limitation.
Wherein, mobile device R be with signal forwarding capability and the equipment that can be moved in certain altitude, may include but It is not limited to unmanned plane, aircraft, satellite etc..
Wherein, target end equipment D is mainly used for receiving and transmitting signal, for example sends artificial noise signal and receive useful signal Deng target end equipment D can include but is not limited to base station and user equipment.
Wherein, interception facility E is mainly used for receiving the signal that mobile device R is sent, and interception facility E may include but not It is limited to base station, user equipment, communication truck etc..
The wireless relay collaborative network that communication system shown in FIG. 1 is suitable for double bounce establishes three by origin of O in Fig. 1 Dimension space coordinate system, wherein being set comprising two surface units (a source equipment S and a target end equipment D) and a movement Standby R.All equipment is all only equipped with single antenna, and source equipment S is communicated by the help of mobile device R with target end equipment D. Therefore, our S → R are referred to as the first jump communication, and R → D is the second jump communication.It is jumped in communication first, d1It is source equipment S and shifting Corresponding direct path distance between dynamic equipment R, l1And l2Be between source equipment S and mobile device R corresponding reflection path away from From.It is jumped in communication second, d2It is corresponding direct path distance, l between mobile device R and target end equipment D3And l4It is to move Corresponding reflection path distance between dynamic equipment R and target end equipment D.In fig. 1, it is assumed that source equipment S and target end equipment D Between because direct path, and the letter that mobile device R can will be intercepted may be not present in the influence of path loss or shadow effect Breath is inerrably transmitted to interception facility E.
Wherein, mobile device R may belong to a heterogeneous network and possess different safety inspections, mobile device R mono- Denier starting will may steal signal when helping forward signal.In this scene, although in the process of signal transmission In need mobile device R to help forward signal, but for secure communication, it is desirable to which the signal of source equipment S transport is to shifting It is secrecy for dynamic equipment R.
It should be noted that model of communication system shown in FIG. 1 especially suitable for source equipment S energy constraint but still The scene that need to be securely communicated by mobile device R, for example, disaster area, the transmission energy of source equipment S is relatively small (may be damaged), but there are also sufficient energy back information by target end equipment D.
In Fig. 1, mobile device R will be normally at a relatively high height, and the transmission of signal depends on ground Reflection.And traditional cellular communication model is only absorbed in the covering of ground level without for the vertical channel about height Sufficiently exact characteristic description is provided.Therefore, in the present invention, selection is based on height and distance (height and distance- Dependent mobile relay channel model), it is built upon on the basis of two diameter propagation models and considers antenna performance The channel model of mobile relay, therefore the vertical channel characteristic about height can accurately be described, rather than only close It infuses in covered ground.This mobile relay channel model can be described as:
Wherein, d is the distance between two communication equipments, l1And l2It is the distance of reflection path respectively, Δ φ is the phase of signal Potential difference.From formula (1), it can be seen that the definition of path loss L is based on transmitted signal wavelengths λ, highly relevant direct projection road Diameter antenna gain Gl(h), highly relevant reflection path antenna gain Gr(h), highly relevant propagation coefficient γ (h) and ground Reflection coefficient ε.Propagation coefficient γ (h) is defined as:
Wherein, htIt is the height of sender, hrIt is the height and γ of recipient0It is the attenuation coefficient of maximum possible.Height phase The direct path antenna gain G of passl(h) it can indicate are as follows:
And highly relevant reflection path antenna gain Gr(h) it can indicate are as follows:
Wherein, ht,cIt is a height threshold and G0It is the channel gain of different channels model.
In communication system shown in Fig. 1, source equipment S and target end equipment D can send simultaneously to mobile device R and believe Number, wherein what source equipment S was sent is useful signal, and what target end equipment D was sent is man made noise's signal, and mobile device R connects After receiving useful signal and man made noise's signal, processing is amplified to useful signal and man made noise's signal, and will processing Signal afterwards is transmitted to target end equipment D, and target end equipment D can obtain useful signal from treated the signal, into One step, target end equipment D can be according to the variation tendency (promoted or declined) of the secrecy capacity of communication system, mobile device R Eavesdropping capacity variation tendency (promoted or decline) and mobile device come from the SINR of same time received signal The power of adjustment man made noise's signal is adapted to, meanwhile, target end equipment D can also be sent to mobile device R for indicating communication The secrecy capacity of system is promoted or the feedback information of decline, after mobile device R receives the feedback information, so that it may anti-according to this Feedforward information determines shift position, and the position that slave mobile device is presently in is moved to shift position, so as to more flexible Ground control mobile device R shift position, further optimize communication system secrecy capacity, make secure communication constantly into Row.
Referring to Fig. 2, Fig. 2 is a kind of mobile device of dynamic noise based on Signal to Interference plus Noise Ratio disclosed by the embodiments of the present invention The flow diagram of position control method.Wherein, it is somebody's turn to do the position of mobile equipment control method of the dynamic noise based on Signal to Interference plus Noise Ratio Applied to target end equipment, as shown in Fig. 2, should the position of mobile equipment control method of dynamic noise based on Signal to Interference plus Noise Ratio can be with The following steps are included:
Step 201, target end equipment send man made noise's signal to the mobile device.
In the embodiment of the present invention, it is assumed that target end equipment sends man made noise's signal x to the mobile deviceD, mesh It marks end equipment and transmits man made noise's signal xDTransimission power be PD, wherein the target end equipment and the mobile device Between transmit man made noise's signal xDGenerated path loss
Wherein, (n+1) time slot is current time slots, and the nth slot is a upper time slot for the current time slots, The n is positive integer.
Step 202, target end equipment receive the processing signal of the mobile device forwarding.
Wherein, the processing signal be the mobile device by man made noise's signal in the same time from the source Useful signal that end equipment receives carries out that treated signal.
Assuming that the source equipment sends useful signal x to the mobile deviceS.The source equipment transmission is described useful Signal xSTransimission power be PS, wherein the useful signal x is transmitted between the source equipment and the mobile deviceSIt is produced Raw path loss
The signal that the mobile device receives is
Wherein, η1(n+1) it is N that expression mean value, which is zero variance,01Multiple Gauss noise.
Since the mobile device R is using the mode of amplification forwarding, the mobile device can will be received Signal yR(n+1) multiplied by an amplification factor W (n+1), it is then forwarded to target end equipment D.
The processing signal that target end equipment D is received are as follows:
Wherein,Indicate the mobile device R with The processing signal y is transmitted between the source equipmentD(n+1) path loss caused by, η2(n+1) indicate that mean value is zero side Difference is N02Multiple Gauss noise.
Step 203, target end equipment obtain the useful signal from the processing signal.
In the embodiment of the present invention, by the man made noise's signal x itself sent out known to target end equipment DD, therefore, target End equipment D can remove the interference x to itselfD, obtain the useful signal are as follows:
Step 204, target end equipment determine the communication system (n+1) time slot the first secrecy capacity relative to institute Communication system is stated in the first variation tendency of the second secrecy capacity of nth slot.
In the embodiment of the present invention, target end equipment can be calculated between the useful signal received and man made noise's signal Signal to Interference plus Noise Ratio (SINR, Signal to Interference plus Noise Ratio) is
Amplification factor W (n+1) can be defined as:
Target end equipment can determine message capacityWherein, institute Mutual information between source equipment S and target end equipment D can be indicated by stating message capacity.
SINR between the useful signal that mobile device receives and man made noise's signal can be expressed as
Mobile device can determine eavesdropping capacityWherein, surreptitiously Auditory volume can be expressed as the mutual information between source equipment S and mobile device R.
Target end equipment determines the communication system in the first secrecy capacity C of (n+1) time slots(n+1)=[CD(n+ 1)-CR(n+1)]+(15),
Wherein,
Wherein, second secrecy capacity is the communication system in the optimal secrecy capacity of nth slot.Target end equipment Determine the communication system after first secrecy capacity of (n+1) time slot, so that it may by first secrecy capacity with it is described Communication system is compared in the second secrecy capacity of nth slot, with the determination communication system the first of (n+1) time slot Secrecy capacity relative to the communication system the second secrecy capacity of nth slot the first variation tendency.Wherein, first change Change trend may include that the secrecy capacity of the communication system rises or the secrecy capacity of the communication system is constant or described logical The secrecy capacity of letter system declines.
Step 205, target end equipment determine that the mobile device eavesdrops capacity relative to institute the first of (n+1) time slot Mobile device is stated in the second variation tendency of the second eavesdropping capacity of nth slot.
Wherein, the second eavesdropping capacity is the mobile device in the optimal eavesdropping capacity of nth slot.Target end equipment Capacity can be eavesdropped to obtain the mobile device in slave mobile device the first of (n+1) time slot, alternatively, target end equipment can To pass through γD(n) and LR,D(n) mobile device is calculated in the first eavesdropping capacity of (n+1) time slot.
Target end equipment determines the communication system after the first eavesdropping capacity of (n+1) time slot, so that it may by this Second eavesdropping capacity of the first eavesdropping capacity with the communication system in nth slot is compared, with the determination communication system The second of capacity is eavesdropped the second of nth slot relative to the communication system in the first eavesdropping capacity of (n+1) time slot to become Change trend.Wherein, which may include the rising of eavesdropping capacity or the communication system of the communication system Eavesdrop that capacity is constant or the eavesdropping capacity decline of the communication system.
Step 206, target end equipment determine the mobile device in the Signal to Interference plus Noise Ratio of same time received signal SINR。
Wherein, the mobile device includes from the artificial of the target end equipment in same time received signal Noise signal and useful signal from the source equipment.Letter of the mobile device in same time received signal The dry SINR to make an uproar than SINR between useful signal and man made noise's signal, as shown in formula (13).
Step 207, target end equipment according to first variation tendency, second variation tendency and the SINR, Adjust the transimission power that the target end equipment transmits man made noise's signal.
Specifically, target end equipment is adjusted according to first variation tendency, second variation tendency and the SINR The transimission power that the whole target end equipment transmits man made noise's signal includes:
If first variation tendency indicates that the secrecy capacity of the communication system is promoted, determine
If first variation tendency indicates that the secrecy capacity of the communication system is not promoted, and second variation tendency It indicates that the eavesdropping capacity of the mobile device does not decline, determines
If first variation tendency indicates that the secrecy capacity of the communication system is not promoted, and second variation tendency The eavesdropping capacity decline for indicating the mobile device, determines
Wherein, the PDIt (n+1) is the biography of target end equipment man made noise's signal described in (n+1) slot transmission Defeated power, the PD(n) transimission power of man made noise's signal is transmitted in nth slot for the target end equipment；It is described γRIt (n+1) is SINR of the mobile device in (n+1) time slot received signal, the γRIt (n) is the mobile device It is modifying factor in the SINR of nth slot received signal, the α and is fixed value.
Specific algorithm is as follows:
if CS(n+1) > CS,best(n)
else
if CR(n+1)≥CR,best(n)
else
end
end
According to first variation tendency, Xiang Suoshu mobile device sends feedback information for step 208, target end equipment, with Control the shift position of the mobile device.
Wherein, the feedback information is used to indicate that the secrecy capacity of the communication system to be promoted or declined.The feedback letter Breath includes positive and negative feedforward information or negative-feedback information, if the secrecy capacity of the communication system is promoted, target device can be to shifting Dynamic equipment sends the positive and negative feedforward information of 1bit, if the secrecy capacity of the communication system declines, target device can be to movement The negative-feedback information of equipment transmission 1bit, wherein target end equipment only needs the feedback information of one bit of feedback, can save network Resource.
The size of step 209, target end equipment first secrecy capacity and second secrecy capacity, will be described The biggish secrecy capacity of numerical value is determined as the communication system at (n+1) in first secrecy capacity and second secrecy capacity The optimal secrecy capacity of time slot.
In the embodiment of the present invention, the secrecy capacity and eavesdropping capacity being stored in the memory of target end equipment are all best , i.e., described second secrecy capacity is the communication system in the optimal secrecy capacity of nth slot；Described second, which eavesdrops capacity, is The mobile device is in the optimal eavesdropping capacity of nth slot.
Target end equipment needs optimal secrecy capacity and optimal eavesdropping capacity, optimal secrecy in real-time update memory The update rule of capacity are as follows:
CS,best(n+1)=max (CS,best(n),CS(n+1))
The rule that optimal eavesdropping capacity updates are as follows:
CR,best(n+1)=max (CR,best(n),CR(n+1))
According to the update of above-mentioned optimal secrecy capacity rule, target end equipment need first secrecy capacity with The size of second secrecy capacity holds the biggish secrecy of numerical value in first secrecy capacity and second secrecy capacity Amount is determined as the communication system in the optimal secrecy capacity of (n+1) time slot.
The size of step 210, target the end equipment first eavesdropping capacity and the second eavesdropping capacity, will be described The biggish eavesdropping capacity of numerical value is determined as the communication system at (n+1) in first eavesdropping capacity and the second eavesdropping capacity The optimal eavesdropping capacity of time slot.
According to it is above-mentioned it is optimal eavesdropping capacity update rule, target end equipment need it is more described first eavesdropping capacity with The size of the second eavesdropping capacity holds the biggish eavesdropping of numerical value in the first eavesdropping capacity and the second eavesdropping capacity Amount is determined as the communication system in the optimal eavesdropping capacity of (n+1) time slot.
Step 211, target end equipment save the communication system in the optimal secrecy capacity of (n+1) time slot and described Communication system is in the optimal eavesdropping capacity of (n+1) time slot.
In the method depicted in fig. 2, target end equipment can determine the communication system the first of (n+1) time slot Secrecy capacity relative to the communication system the second secrecy capacity of nth slot the first variation tendency, and determine described in Mobile device eavesdrops capacity the second of nth slot relative to the mobile device in the first eavesdropping capacity of (n+1) time slot The second variation tendency, further, target end equipment determines the mobile device in the letter of same time received signal Dry to make an uproar than after SINR, target end equipment can be according to first variation tendency, second variation tendency and described SINR, adjusts the transimission power that the target end equipment transmits man made noise's signal, and according to first variation tendency, Feedback information is sent to the mobile device, to control the shift position of the mobile device.Implement as it can be seen that implementing the present invention Example, target end equipment can be according to the eavesdroppings of variation tendency (promoted or declined), mobile device of the secrecy capacity of communication system The variation tendency (promoted or declined) and mobile device of capacity are adaptively adjusted in the SINR of same time received signal The power of whole man made noise's signal, and the shift position of mobile device is controlled according to feedback information, meanwhile, by adaptively adjusting The power of whole man made noise's signal advanced optimizes the secrecy capacity of communication system, is continued for secure communication.
Referring to Fig. 3, the movement that Fig. 3 is another dynamic noise based on Signal to Interference plus Noise Ratio disclosed by the embodiments of the present invention is set The flow diagram of standby position control method.Wherein, it is somebody's turn to do the position of mobile equipment controlling party of the dynamic noise based on Signal to Interference plus Noise Ratio Method is applied to mobile device, as shown in figure 3, should the position of mobile equipment control method of dynamic noise based on Signal to Interference plus Noise Ratio can be with The following steps are included:
Step 301, mobile device receive the useful signal and the target side that the source equipment is sent in the same time Man made noise's signal that equipment is sent.
Where it is assumed that the source equipment described in the same time sends useful signal x to mobile deviceSIt is set with the target side It is standby to send artificial noise signal x to mobile deviceD.The signal that mobile device receives is described in formula (7)
Step 302, mobile device handle the useful signal and man made noise's signal, obtain processing letter Number, and the processing signal is transmitted to the target end equipment.
Wherein, mobile device handles the useful signal and man made noise's signal, obtains processing signal and is Described in formula (8)
Step 303, mobile device receive the feedback information that the target end equipment is returned for the processing signal.
Wherein, after the target end equipment receives the processing signal, the communication system can be determined at (n+1) First secrecy capacity of time slot relative to the communication system the second secrecy capacity of nth slot the first variation tendency, and According to first variation tendency, Xiang Suoshu mobile device sends feedback information, wherein the feedback information is for indicating described The secrecy capacity of communication system is promoted or decline.The feedback information includes positive and negative feedforward information or negative-feedback information, if described The secrecy capacity of communication system is promoted, and target device can send the positive and negative feedforward information of 1bit to mobile device, if described logical The secrecy capacity of letter system declines, and target device can send the negative-feedback information of 1bit to mobile device.
Step 304, mobile device determine shift position according to the eavesdropping capacity of the feedback information and the mobile device, And the shift position is moved to from the position that the mobile device is presently in.
Specifically, mobile device determines that shift position is wrapped according to the eavesdropping capacity of the feedback information and the mobile device It includes:
If the feedback information is used to indicate that the secrecy capacity of the communication system to be promoted, and the eavesdropping of the mobile device Capacity does not decline, and current moving step length is increased to first movement step-length；The position being presently according to the mobile device And the first movement step-length, determine shift position；
If the feedback information is used to indicate the secrecy capacity decline of the communication system, current moving step length is reduced To the second moving step length；The position being presently according to the mobile device and second moving step length determine mobile position It sets.
Wherein, the feedback information be used for indicate the communication system secrecy capacity promoted in the case where, need into One step judges to accumulate whether positive feedback counter is more than accumulation positive feedback counter threshold, if so, will be current described in execution Moving step length increase to first movement step-length；Equally, it is used to indicate that the secrecy of the communication system to be held in the feedback information In the case where amount decline, need further to judge to accumulate whether negative-feedback counter is more than accumulation negative-feedback counter threshold, if It is that then execution was described is decreased to the second moving step length for current moving step length.Wherein, in order to avoid the positive serious offense of moving step length Fastly, it is also necessary to which positive feedback counter threshold Dynamic gene goes adjustment accumulation positive feedback counter threshold.
It illustrates specific as follows:
The initialization of relevant parameter can be carried out first, it is assumed that initial position of the R (x (0), y (0)) as mobile device R, It is arranged Dynamic gene ξ (0)=0, when initial, optimal secrecy capacity CS,bestAnd optimal eavesdropping capacity C (0)=0R,best(0) =0.
Specifically, corresponding algorithm is as follows:
if one-bit of positive information
Rbest(x (n+1), y (n+1))=R (x (n+1), y (n+1))；
ξ (n+1)=0；CN=0；
CP=CP+1；
if CP≥CT1
CP=0；
δ0(n+1)=δ0(n)·RI；
CT1=CT1+ΔT；
end
elseif one-bit of negative information
Rbest(x (n+1), y (n+1))=Rbest(x(n),y(n))；
ξ (n+1)=- δ (n)；
CN=CN+1；
if CN≥CT2
δ0(n+1)=δ0(n)·RD；
CN=0；
CP=0；
end
end
Wherein, CNFor continuous negative-feedback counter, CPTo accumulate positive feedback counter, CT1For feedback counter threshold value, CT2 Be negative feedback counter threshold value, ΔTBe positive the feedback counter adjusting thresholds factor, δ0It (n+1) is moving step length, RIFor step-length increasing The big factor, RDReduce the factor for step-length.
Mobile device determines that next shift position of the mobile device is R (x (n+2), y (n+ according to the feedback information 2))=Rbest(x (n+1), y (n+1))+ξ (n+1)+δ (n+1), further, mobile device can be moved to R (x (n+2), y The location of (n+2)).
Wherein, method described in implementing Fig. 3, mobile device can receive the useful of source equipment transmission in the same time Man made noise's signal that signal and target end equipment are sent further is handled useful signal and man made noise's signal, Processing signal is obtained, and processing signal is sent to after target end equipment, so that it may receive target end equipment for processing letter Number return feedback information, shift position is determined according to feedback information, and the position that slave mobile device is presently in is moved to Dynamic position, so as to optimize the secrecy capacity of communication system by the position for neatly controlling mobile device.
Referring to Fig. 4, the movement that Fig. 4 is another dynamic noise based on Signal to Interference plus Noise Ratio disclosed by the embodiments of the present invention is set The flow diagram of standby position control method.Wherein, it is somebody's turn to do the position of mobile equipment controlling party of the dynamic noise based on Signal to Interference plus Noise Ratio Method is described from source equipment, mobile device and three side of target end equipment, and step can join some or all of in Fig. 4 According to the description in Fig. 2 or Fig. 3, details are not described herein.As shown in figure 4, being somebody's turn to do the mobile device of the dynamic noise based on Signal to Interference plus Noise Ratio Position control method may comprise steps of:
Step 401, source equipment send useful signal to mobile device.
Step 402, target end equipment send artificial noise signal to mobile device.
Wherein, step 401 occurs simultaneously with step 402.
Step 403, mobile device handle the useful signal and man made noise's signal, obtain processing letter Number.
Step 404, mobile device are transmitted to the target end equipment for signal is handled.
Step 405, target end equipment obtain the useful signal from the processing signal.
Step 406, target end equipment determine the communication system (n+1) time slot the first secrecy capacity relative to institute Communication system is stated in the first variation tendency of the second secrecy capacity of nth slot.
Step 407, target end equipment determine that the mobile device eavesdrops capacity relative to institute the first of (n+1) time slot Mobile device is stated in the second variation tendency of the second eavesdropping capacity of nth slot.
Step 408, target end equipment obtain the mobile device in the Signal to Interference plus Noise Ratio of same time received signal SINR。
Step 409, target end equipment according to first variation tendency, second variation tendency and the SINR, Adjust the transimission power that the target end equipment transmits man made noise's signal.
The size of step 410, target end equipment first secrecy capacity and second secrecy capacity, will be described The biggish secrecy capacity of numerical value is determined as the communication system at (n+1) in first secrecy capacity and second secrecy capacity The optimal secrecy capacity of time slot.
The size of step 411, target the end equipment first eavesdropping capacity and the second eavesdropping capacity, will be described The biggish eavesdropping capacity of numerical value is determined as the communication system at (n+1) in first eavesdropping capacity and the second eavesdropping capacity The optimal eavesdropping capacity of time slot.
Step 412, target end equipment save the communication system in the optimal secrecy capacity of (n+1) time slot and described Communication system is in the optimal eavesdropping capacity of (n+1) time slot.
According to first variation tendency, Xiang Suoshu mobile device sends feedback information for step 413, target end equipment.
Step 414, mobile device determine shift position according to the eavesdropping capacity of the feedback information and the mobile device, And the shift position is moved to from the position that the mobile device is presently in.
It is that a kind of message capacity, secrecy capacity and eavesdropping disclosed by the embodiments of the present invention are held please also refer to Fig. 5, Fig. 5 The convergence graph of amount.Wherein, source equipment S location coordinate is located at (- 1000m, 1000m, 10m), the position coordinates of target end equipment D It is located at (1000m, -1000m, 10m), carrier frequency f is set as 2020MHz, and the height of mobile device R is set as h=100m.Manually The initial value of the transimission power of noise signal is set as 0.5W, N01=N02=-80dBm, ground reflection coefficent ε=0.5 and decline Factor gamma0=3.5, step-length enhancement factor RI=1.2, step-length reduces factor RD=0.7, positive feedback counter threshold CT1=2, it bears Feedback counter threshold value CT2=5, positive feedback counter threshold Dynamic gene ΔTThe initial position=1, α=0.829, R be (- 1500m, -1000m, 100m), initial step length δ0(0)=80m.CDIndicate message capacity, CSIndicate secrecy capacity, CRIndicate eavesdropping Capacity.As shown in figure 5, man made noise's signal is introduced, adaptive adjustment adjustment PDSize confuse mobile device R, communication system System is improving secrecy capacity CSWhile, there is no sacrifice eavesdropping capacity CR, so that mobile device R is allowed sufficiently to trust communication system, It is continued for secure communication.
Wherein, implement method described in Fig. 4, target end equipment can become according to the variation of the secrecy capacity of communication system The variation tendency (promoted or declined) and mobile device of the eavesdropping capacity of gesture (promoted or declined), mobile device are in the same time The SINR of received signal adaptively adjusts the power of man made noise's signal, and controls mobile device according to feedback information Shift position, meanwhile, advanced optimized by adaptively adjusting the power of man made noise's signal communication system secrecy hold Amount, is continued for secure communication.
Referring to Fig. 6, Fig. 6 is a kind of structural representation of position of mobile equipment control device disclosed by the embodiments of the present invention Figure.Wherein, position of mobile equipment control device described in Fig. 6, which can be used for executing, is based on believing dry make an uproar described in Fig. 2 or Fig. 4 Step some or all of in the position of mobile equipment control method of the dynamic noise of ratio, specifically refers to the phase in Fig. 2 or Fig. 4 Description is closed, details are not described herein.Wherein, which runs on the target side that communication system includes and sets It is standby.As shown in fig. 6, the position of mobile equipment control device may include:
Determination unit 601, for determine the communication system (n+1) time slot the first secrecy capacity relative to described First variation tendency of the communication system in the second secrecy capacity of nth slot, wherein second secrecy capacity is the communication System is in the optimal secrecy capacity of nth slot, and (n+1) time slot is current time slots, when the nth slot is described current A upper time slot for gap, the n are positive integer；
The determination unit 601 is also used to determine that the mobile device is opposite in the first eavesdropping capacity of (n+1) time slot In the second variation tendency that the mobile device eavesdrops capacity the second of nth slot, wherein the second eavesdropping capacity is institute Mobile device is stated in the optimal eavesdropping capacity of nth slot；
The determination unit 601 is also used to determine that the mobile device dry is made an uproar in the letter of same time received signal Compare SINR, wherein the mobile device includes from the artificial of the target end equipment in same time received signal Noise signal and useful signal from the source equipment；
Adjustment unit 602, for adjusting according to first variation tendency, second variation tendency and the SINR The whole target end equipment transmits the transimission power of man made noise's signal；
First transmission unit 603 is used for according to first variation tendency, and Xiang Suoshu mobile device sends feedback information, To control the shift position of the mobile device, the feedback information be used to indicate the secrecy capacity of the communication system promoted or Decline.
Specifically, the adjustment unit 602 is according to first variation tendency, second variation tendency and described SINR adjusts the mode that the target end equipment transmits the transimission power of man made noise's signal specifically:
If first variation tendency indicates that the secrecy capacity of the communication system is promoted, determine
If first variation tendency indicates that the secrecy capacity of the communication system is not promoted, and second variation tendency It indicates that the eavesdropping capacity of the mobile device does not decline, determines
If first variation tendency indicates that the secrecy capacity of the communication system is not promoted, and second variation tendency The eavesdropping capacity decline for indicating the mobile device, determines
Wherein, the PDIt (n+1) is the biography of target end equipment man made noise's signal described in (n+1) slot transmission Defeated power, the PD(n) transimission power of man made noise's signal is transmitted in nth slot for the target end equipment；It is described γRIt (n+1) is SINR of the mobile device in (n+1) time slot received signal, the γRIt (n) is the mobile device It is modifying factor in the SINR of nth slot received signal, the α and is fixed value.
Wherein, implement position of mobile equipment control device described in Fig. 6, it can be according to the secrecy capacity of communication system The variation tendency (promoted or declined) and mobile device of the eavesdropping capacity of variation tendency (promoted or declined), mobile device are same The SINR of one time received signal adaptively adjusts the power of man made noise's signal, and shifting is controlled according to feedback information The shift position of dynamic equipment, meanwhile, communication system is advanced optimized by adaptively adjusting the power of man made noise's signal Secrecy capacity is continued for secure communication.
Referring to Fig. 7, Fig. 7 is the structural representation of another position of mobile equipment control device disclosed by the embodiments of the present invention Figure.Wherein, position of mobile equipment control device described in Fig. 7, which can be used for executing, is based on believing dry make an uproar described in Fig. 2 or Fig. 4 Step some or all of in the position of mobile equipment control method of the dynamic noise of ratio, specifically refers to the phase in Fig. 2 or Fig. 4 Description is closed, details are not described herein.Wherein, which runs on the target side that communication system includes and sets It is standby.Wherein, it is excellent to be that position of mobile equipment control device as shown in Figure 6 carries out for position of mobile equipment control device shown in Fig. 7 What change obtained.Compared with position of mobile equipment control device shown in fig. 6, position of mobile equipment control device shown in Fig. 7 is also May include:
Compare determination unit 604, for the size of first secrecy capacity and second secrecy capacity, by institute It states the biggish secrecy capacity of numerical value in the first secrecy capacity and second secrecy capacity and is determined as the communication system in (n+ 1) the optimal secrecy capacity of time slot；
The relatively determination unit 604 is also used to the first eavesdropping capacity described in comparison with described second and eavesdrops the big of capacity It is small, the biggish eavesdropping capacity of numerical value in the first eavesdropping capacity and the second eavesdropping capacity is determined as the communication system In the optimal eavesdropping capacity of (n+1) time slot；
Storage unit 605, for saving the communication system in the optimal secrecy capacity of (n+1) time slot and described logical Letter system is in the optimal eavesdropping capacity of (n+1) time slot.
Optionally, position of mobile equipment control device shown in Fig. 7 can also include:
Second transmission unit 606, for determining the communication system the first of (n+1) time slot in the determination unit Secrecy capacity relative to the communication system before the first variation tendency of the second secrecy capacity of nth slot, to the shifting Dynamic equipment sends man made noise's signal；
Receiving unit 607, for receiving the processing signal of the mobile device forwarding, the processing signal is the movement Man made noise's signal is carried out that treated by equipment with the useful signal received from the source equipment in the same time Signal；
Acquiring unit 608, for obtaining the useful signal from the processing signal.
Wherein, implement position of mobile equipment control device described in Fig. 7, can adaptively adjust man made noise's signal Power to control the shift position of mobile device more flexiblely, processing signal is received in slave mobile device and from processing signal Useful signal is obtained, secure communication is realized.Additionally it is possible to real-time update and save secrecy capacity and the shifting of communication system The eavesdropping capacity of dynamic equipment.
Referring to Fig. 8, Fig. 8 is the structural representation of another position of mobile equipment control device disclosed by the embodiments of the present invention Figure.Wherein, position of mobile equipment control device described in Fig. 8, which can be used for executing, is based on believing dry make an uproar described in Fig. 3 or Fig. 4 Step some or all of in the position of mobile equipment control method of the dynamic noise of ratio, specifically refers to the phase in Fig. 3 or Fig. 4 Description is closed, details are not described herein.Wherein, which runs on the mobile device that communication system includes. As shown in figure 8, the position of mobile equipment control device may include:
Receiving unit 801, for receiving the useful signal and the target side that the source equipment is sent in the same time Man made noise's signal that equipment is sent；
Processing transmission unit 802 is handled for handling the useful signal and man made noise's signal Signal, and the processing signal is transmitted to the target end equipment；
The receiving unit 801 is also used to receive the feedback letter that the target end equipment is returned for the processing signal Breath, the feedback information are used to indicate that the secrecy capacity of the communication system to be promoted or declined；
Determination unit 803, for determining shift position according to the eavesdropping capacity of the feedback information and the mobile device；
It is moved specifically, the determination unit 803 is determined according to the feedback information and the eavesdropping capacity of the mobile device The mode of dynamic position specifically:
If the feedback information is used to indicate that the secrecy capacity of the communication system to be promoted, and the eavesdropping of the mobile device Capacity does not decline, and current moving step length is increased to first movement step-length；The position being presently according to the mobile device And the first movement step-length, determine shift position；
If the feedback information is used to indicate the secrecy capacity decline of the communication system, current moving step length is reduced To the second moving step length；The position being presently according to the mobile device and second moving step length determine mobile position It sets.
Mobile unit 804, for being moved to the shift position from the position that the mobile device is presently in.
Implement position of mobile equipment control device shown in Fig. 8, having for source equipment transmission can be received in the same time The man made noise's signal sent with signal and target end equipment, further, at useful signal and man made noise's signal Reason obtains processing signal, and processing signal is sent to after target end equipment, so that it may receive target end equipment for processing The feedback information that signal returns, determines shift position according to feedback information, and the position that slave mobile device is presently in is moved to Shift position, so as to optimize the secrecy capacity of communication system by the position for neatly controlling mobile device.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment Point, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed device, it can be by another way It realizes.For example, the apparatus embodiments described above are merely exemplary, such as the division of the unit, it is only a kind of Logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine or can To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual Coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit, It can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product When, it can store in a computer-readable access to memory.Based on this understanding, technical solution of the present invention substantially or Person says that all or part of the part that contributes to existing technology or the technical solution can body in the form of software products Reveal and, which is stored in a memory, including some instructions are used so that a computer equipment (can be personal computer, server or network equipment etc.) executes all or part of each embodiment the method for the present invention Step.And memory above-mentioned includes: USB flash disk, read-only memory (ROM, Read-Only Memory), random access memory The various media that can store program code such as (RAM, Random Access Memory), mobile hard disk, magnetic or disk.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can It is completed with instructing relevant hardware by program, which can store in a computer-readable memory, memory May include: flash disk, read-only memory (English: Read-Only Memory, referred to as: ROM), random access device (English: Random Access Memory, referred to as: RAM), disk or CD etc..
Above to the position of mobile equipment control method of the dynamic noise disclosed by the embodiments of the present invention based on Signal to Interference plus Noise Ratio And device is described in detail, it is used herein that a specific example illustrates the principle and implementation of the invention, The above description of the embodiment is only used to help understand the method for the present invention and its core ideas；Meanwhile for the one of this field As technical staff, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, to sum up institute It states, the contents of this specification are not to be construed as limiting the invention.

Claims (10)

1. a kind of position of mobile equipment control method of the dynamic noise based on Signal to Interference plus Noise Ratio, the mesh for including applied to communication system End equipment is marked, the communication system further includes the mobile device and source equipment, which is characterized in that the described method includes:
Determine the communication system (n+1) time slot the first secrecy capacity relative to the communication system in nth slot First variation tendency of the second secrecy capacity, wherein second secrecy capacity is that the communication system is optimal in nth slot Secrecy capacity, (n+1) time slot are current time slots, and the nth slot is a upper time slot for the current time slots, described N is positive integer；
Determine that the mobile device eavesdrops capacity relative to the mobile device in nth slot the first of (n+1) time slot Second variation tendency of the second eavesdropping capacity, wherein the second eavesdropping capacity is that the mobile device is optimal in nth slot Eavesdrop capacity；
Determine the mobile device in the Signal to Interference plus Noise Ratio SINR of same time received signal, wherein the mobile device exists Same time received signal includes setting from man made noise's signal of the target end equipment and from the source Standby useful signal；
According to first variation tendency, second variation tendency and the SINR, the target end equipment transmission is adjusted The transimission power of man made noise's signal；
According to first variation tendency, Xiang Suoshu mobile device sends feedback information, to control the movement of the mobile device Position, the feedback information are used to indicate that the secrecy capacity of the communication system to be promoted or declined,
Wherein, first secrecy capacity meets Cs(n+1)=[CD(n+1)-CR(n+1)]+,CD (n+1) message capacity, C are indicatedR(n+1) eavesdropping capacity is indicated, γD(n+1) it indicates useful signal that the target end equipment receives and manually makes an uproar Signal to Interference plus Noise Ratio between acoustical signal, γR(n+1) indicate useful signal that the mobile device receives and man made noise's signal it Between Signal to Interference plus Noise Ratio, W (n+1) indicate amplification factor, PSIndicate that the source equipment transmits the transimission power of the useful signal, LS,R(n+1) it indicates to transmit path loss caused by the useful signal between the source equipment and the mobile device, LR,D(n+1) path loss caused by transmission process signal, N between the mobile device and the source equipment are indicated01、N02 Indicate variance, PDIndicate that the target end equipment transmits the transimission power of man made noise's signal, LD,R(n+1) described in indicating Path loss caused by man made noise's signal, the optimal guarantor are transmitted between target end equipment and the mobile device The update rule of close capacity are as follows: CS,best(n+1)=max (CS,best(n),CS(n+1)), the optimal eavesdropping capacity updates Rule are as follows: CR,best(n+1)=max (CR,best(n),CR(n+1))。
2. the position of mobile equipment control method of the dynamic noise according to claim 1 based on Signal to Interference plus Noise Ratio, feature It is, the method also includes:
The size for comparing first secrecy capacity Yu second secrecy capacity, by first secrecy capacity and described second The biggish secrecy capacity of numerical value is determined as the communication system in the optimal secrecy capacity of (n+1) time slot in secrecy capacity；With And
The size for comparing the first eavesdropping capacity and the second eavesdropping capacity, by the first eavesdropping capacity and described second The biggish eavesdropping capacity of numerical value is determined as the communication system in the optimal eavesdropping capacity of (n+1) time slot in eavesdropping capacity；
The communication system is saved in the optimal secrecy capacity of (n+1) time slot and the communication system in (n+1) time slot Optimal eavesdropping capacity.
3. the position of mobile equipment control method of the dynamic noise according to claim 2 based on Signal to Interference plus Noise Ratio, feature It is, it is described according to first variation tendency, second variation tendency and the SINR, adjust the target end equipment The transimission power for transmitting man made noise's signal includes:
If first variation tendency indicates that the secrecy capacity of the communication system is promoted, determine
If first variation tendency indicates that the secrecy capacity of the communication system is not promoted, and second variation tendency indicates The eavesdropping capacity of the mobile device does not decline, determines
If first variation tendency indicates that the secrecy capacity of the communication system is not promoted, and second variation tendency indicates The eavesdropping capacity of the mobile device declines, and determines
Wherein, the PDIt (n+1) is the transmission function of target end equipment man made noise's signal described in (n+1) slot transmission Rate, the PD(n) transimission power of man made noise's signal is transmitted in nth slot for the target end equipment；The γR(n+ It 1) is SINR of the mobile device in (n+1) time slot received signal, the γRIt (n) is the mobile device n-th The SINR of time slot received signal, the α are modifying factor and are fixed value.
4. the position of mobile equipment controlling party of the dynamic noise according to any one of claims 1 to 3 based on Signal to Interference plus Noise Ratio Method, which is characterized in that the determination communication system (n+1) time slot the first secrecy capacity relative to the communication system It unites before the first variation tendency of the second secrecy capacity of nth slot, the method also includes:
Artificial noise signal is sent to the mobile device；
The processing signal of the mobile device forwarding is received, the processing signal is that the mobile device believes the man made noise Number with the useful signal that is received in the same time from the source equipment signal that carries out that treated；
The useful signal is obtained from the processing signal, the processing signal meets Indicate the signal that the mobile device receives, xSIndicate useful signal, xDIndicate man made noise's signal, η1(n+1) it is N that expression mean value, which is zero variance,01Multiple Gauss noise, η2(n+1) it is N that expression mean value, which is zero variance,02Multiple Gauss make an uproar Sound,λ indicates transmitted signal wavelengths, Gr(h) indicate high Spend relevant reflection path antenna gain, Gl(h) highly relevant direct path antenna gain is indicated, ε indicates ground return system Number, l1And l2Respectively indicate corresponding reflection path distance, l between source equipment and mobile device3And l4Movement is respectively indicated to set Standby reflection path distance corresponding between target end equipment, γ (h) indicate propagation coefficient, d1It is source equipment and mobile device Between corresponding direct path distance, d2It is that corresponding direct path distance, Δ φ are between mobile device and target end equipment The phase difference of signal.
5. a kind of position of mobile equipment control method of the dynamic noise based on Signal to Interference plus Noise Ratio, the shifting for including applied to communication system Dynamic equipment, the communication system further includes source equipment and target end equipment, which is characterized in that the described method includes:
The useful signal that the source equipment is sent and man made noise's letter that the target end equipment is sent are received in the same time Number；
The useful signal and man made noise's signal are handled, obtain processing signal, and the processing signal is turned The target end equipment is issued, the processing signal meets
Indicate the signal that the mobile device receives, xSIndicate useful signal, xDIndicate man made noise's signal, η1(n+1) it is N that expression mean value, which is zero variance,01Multiple Gauss noise, η2(n + 1) it is N that expression mean value, which is zero variance,02Multiple Gauss noise；
The feedback information that the target end equipment is returned for the processing signal is received, the feedback information is for indicating described The secrecy capacity of communication system is promoted or decline；
Shift position is determined according to the eavesdropping capacity of the feedback information and the mobile device, and current from the mobile device Location is moved to the shift position,
Wherein, the first secrecy capacity meets Cs(n+1)=[CD(n+1)-CR(n+1)]+, CD(n+1) message capacity, C are indicatedR(n+1) eavesdropping capacity, γ are indicatedD(n+1) mesh is indicated Mark the Signal to Interference plus Noise Ratio between the end equipment useful signal received and man made noise's signal, γR(n+1) indicate that the mobile device connects Signal to Interference plus Noise Ratio between the useful signal received and man made noise's signal, W (n+1) indicate amplification factor, PSIndicate the source Equipment transmits the transimission power of the useful signal, LS,R(n+1) it indicates to transmit between the source equipment and the mobile device Path loss caused by the useful signal,LR,D (n+1) path loss caused by transmission process signal between the mobile device and the source equipment is indicated,PDIndicate that the target end equipment transmission is described artificial The transimission power of noise signal, LD,R(n+1) it indicates to transmit between the target end equipment and the mobile device and described manually make an uproar Path loss caused by acoustical signal, λ indicate transmitted signal wavelengths, Gr(h) highly relevant reflection path antenna gain is indicated, Gl(h) highly relevant direct path antenna gain is indicated, ε indicates ground reflection coefficent, l1And l2Respectively indicate source equipment with Corresponding reflection path distance, l between mobile device3And l4It respectively indicates corresponding anti-between mobile device and target end equipment Path distance is penetrated, γ (h) indicates propagation coefficient, d1It is corresponding direct path distance, d between source equipment and mobile device2It is Corresponding direct path distance between mobile device and target end equipment, Δ φ are the phase differences of signal.
6. the position of mobile equipment control method of the dynamic noise according to claim 5 based on Signal to Interference plus Noise Ratio, feature It is, the eavesdropping capacity according to the feedback information and the mobile device determines that shift position includes:
If the feedback information is used to indicate that the secrecy capacity of the communication system to be promoted, and the eavesdropping capacity of the mobile device Do not decline, current moving step length is increased into first movement step-length；The position that is presently according to the mobile device and The first movement step-length, determines shift position；
If the feedback information is used to indicate the secrecy capacity decline of the communication system, current moving step length is decreased to the Two moving step lengths；The position being presently according to the mobile device and second moving step length, determine shift position.
7. a kind of position of mobile equipment control device runs on the target end equipment that communication system includes, the communication system is also Including the mobile device and source equipment characterized by comprising
Determination unit, for determine the communication system (n+1) time slot the first secrecy capacity relative to the communication system It unites in the first variation tendency of the second secrecy capacity of nth slot, wherein second secrecy capacity is that the communication system exists The optimal secrecy capacity of nth slot, (n+1) time slot are current time slots, and the nth slot is the upper of the current time slots One time slot, the n are positive integer；
The determination unit is also used to determine that the mobile device eavesdrops capacity relative to described the first of (n+1) time slot Second variation tendency of the mobile device in the second eavesdropping capacity of nth slot, wherein the second eavesdropping capacity is the movement Equipment is in the optimal eavesdropping capacity of nth slot；
The determination unit, is also used to obtain the mobile device in the Signal to Interference plus Noise Ratio SINR of same time received signal, Wherein, the mobile device includes man made noise's signal from the target end equipment in same time received signal With the useful signal from the source equipment；
Adjustment unit, for adjusting the mesh according to first variation tendency, second variation tendency and the SINR Mark end equipment transmits the transimission power of man made noise's signal；
First transmission unit, for according to first variation tendency, Xiang Suoshu mobile device to send feedback information, to control The shift position of mobile device is stated, the feedback information is used to indicate that the secrecy capacity of the communication system to be promoted or declined,
Wherein, first secrecy capacity meets Cs(n+1)=[CD(n+1)-CR(n+1)]+,CD (n+1) message capacity, C are indicatedR(n+1) eavesdropping capacity is indicated, γD(n+1) it indicates useful signal that the target end equipment receives and manually makes an uproar Signal to Interference plus Noise Ratio between acoustical signal, γR(n+1) indicate useful signal that the mobile device receives and man made noise's signal it Between Signal to Interference plus Noise Ratio, W (n+1) indicate amplification factor, PSIndicate that the source equipment transmits the transimission power of the useful signal, LS,R(n+1) it indicates to transmit path loss caused by the useful signal between the source equipment and the mobile device, LR,D(n+1) path loss caused by transmission process signal, N between the mobile device and the source equipment are indicated01、N02 Indicate variance, PDIndicate that the target end equipment transmits the transimission power of man made noise's signal, LD,R(n+1) described in indicating Path loss caused by man made noise's signal, the optimal guarantor are transmitted between target end equipment and the mobile device The update rule of close capacity are as follows: CS,best(n+1)=max (CS,best(n),CS(n+1)), the optimal eavesdropping capacity updates Rule are as follows: CR,best(n+1)=max (CR,best(n),CR(n+1))。
8. position of mobile equipment control device according to claim 7, which is characterized in that the position of mobile equipment control Device further include:
Compare determination unit, for the size of first secrecy capacity and second secrecy capacity, by described first The biggish secrecy capacity of numerical value is determined as the communication system in (n+1) time slot in secrecy capacity and second secrecy capacity Optimal secrecy capacity；
The relatively determination unit is also used to the size of the first eavesdropping capacity described in comparison and the second eavesdropping capacity, by institute It states the biggish eavesdropping capacity of numerical value in the first eavesdropping capacity and the second eavesdropping capacity and is determined as the communication system in (n+ 1) the optimal eavesdropping capacity of time slot；
Storage unit, for saving the communication system in the optimal secrecy capacity of (n+1) time slot and the communication system In the optimal eavesdropping capacity of (n+1) time slot.
9. position of mobile equipment control device according to claim 8, which is characterized in that the adjustment unit is according to First variation tendency, second variation tendency and the SINR adjust the target end equipment and transmit the man made noise The mode of the transimission power of signal specifically:
If first variation tendency indicates that the secrecy capacity of the communication system is promoted, determine
If first variation tendency indicates that the secrecy capacity of the communication system is not promoted, and second variation tendency indicates The eavesdropping capacity of the mobile device does not decline, determines
If first variation tendency indicates that the secrecy capacity of the communication system is not promoted, and second variation tendency indicates The eavesdropping capacity of the mobile device declines, and determines
Wherein, the PDIt (n+1) is the transmission function of target end equipment man made noise's signal described in (n+1) slot transmission Rate, the PD(n) transimission power of man made noise's signal is transmitted in nth slot for the target end equipment；The γR(n+ It 1) is SINR of the mobile device in (n+1) time slot received signal, the γRIt (n) is the mobile device n-th The SINR of time slot received signal, the α are modifying factor and are fixed value.
10. position of mobile equipment control device according to any one of claims 7 to 9, which is characterized in that the movement is set Standby position control further include:
Second transmission unit, for determining that the communication system is held in first secrecy of (n+1) time slot in the determination unit It measures relative to the communication system before the first variation tendency of the second secrecy capacity of nth slot, Xiang Suoshu mobile device Send man made noise's signal；
Receiving unit, for receiving the processing signal of the mobile device forwarding, the processing signal will for the mobile device Man made noise's signal carries out that treated with the useful signal received from the source equipment in the same time signal, institute Processing signal is stated to meet Indicate the signal that the mobile device receives, xSIndicate useful signal, xDIndicate man made noise's signal, η1(n+1) it is N that expression mean value, which is zero variance,01Multiple Gauss noise, η2(n+1) it is N that expression mean value, which is zero variance,02Multiple Gauss make an uproar Sound,λ indicates transmitted signal wavelengths, Gr(h) indicate high Spend relevant reflection path antenna gain, Gl(h) highly relevant direct path antenna gain is indicated, ε indicates ground return system Number, l1And l2Respectively indicate corresponding reflection path distance, l between source equipment and mobile device3And l4Movement is respectively indicated to set Standby reflection path distance corresponding between target end equipment, γ (h) indicate propagation coefficient, d1It is source equipment and mobile device Between corresponding direct path distance, d2It is that corresponding direct path distance, Δ φ are between mobile device and target end equipment The phase difference of signal；
Acquiring unit, for obtaining the useful signal from the processing signal.
CN201710542121.2A 2017-07-05 2017-07-05 The position of mobile equipment control method and device of dynamic noise based on Signal to Interference plus Noise Ratio Active CN107360544B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710542121.2A CN107360544B (en) 2017-07-05 2017-07-05 The position of mobile equipment control method and device of dynamic noise based on Signal to Interference plus Noise Ratio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710542121.2A CN107360544B (en) 2017-07-05 2017-07-05 The position of mobile equipment control method and device of dynamic noise based on Signal to Interference plus Noise Ratio

Publications (2)

Publication Number Publication Date
CN107360544A CN107360544A (en) 2017-11-17
CN107360544B true CN107360544B (en) 2019-10-01

Family

ID=60291686

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710542121.2A Active CN107360544B (en) 2017-07-05 2017-07-05 The position of mobile equipment control method and device of dynamic noise based on Signal to Interference plus Noise Ratio

Country Status (1)

Country Link
CN (1) CN107360544B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019006693A1 (en) * 2017-07-05 2019-01-10 深圳大学 Mobile device position control method and apparatus based on dynamic noise of channel information
WO2019006711A1 (en) * 2017-07-05 2019-01-10 深圳大学 Mobile device position control method and apparatus based on dynamic noise with signal to interference plus noise ratio
CN108092737B (en) * 2018-01-08 2019-10-01 中国民航大学 The relaying unmanned aerial vehicle flight path planing method of criterion is maximized based on secrecy capacity
CN108445755A (en) * 2018-03-07 2018-08-24 中国人民解放军空军工程大学 Electronic jammers spatial domain based on refined Hook Jeeves algorighm delineates method
CN108769987B (en) * 2018-07-09 2021-09-14 深圳大学 Secret data transmission method and device based on distance information estimation, storage medium and terminal
CN109302260B (en) * 2018-08-17 2020-11-03 北京航空航天大学 Vehicle wireless communication anti-eavesdropping safety protection method based on multi-antenna technology

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104093143A (en) * 2014-07-14 2014-10-08 电子科技大学 Self-adaptive cooperation method in physical layer safety communication
CN105764130A (en) * 2016-03-04 2016-07-13 山东大学 Power distribution method for full-duplex relay network in nonideal channel state
CN106131824A (en) * 2016-06-06 2016-11-16 西安交通大学 Cordless communication network allied signal feedback and man made noise's safety of physical layer communication means

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2309473T3 (en) * 2004-09-23 2008-12-16 Alcatel Lucent MULTIPLE CARRIER SIGNAL MODEM TRANSMITTER WITH CONTROLLED DEGRADATION OF THE QUALITY OF THE TRANSMISSION SIGNAL TO IMPROVE OPERATION STABILITY.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104093143A (en) * 2014-07-14 2014-10-08 电子科技大学 Self-adaptive cooperation method in physical layer safety communication
CN105764130A (en) * 2016-03-04 2016-07-13 山东大学 Power distribution method for full-duplex relay network in nonideal channel state
CN106131824A (en) * 2016-06-06 2016-11-16 西安交通大学 Cordless communication network allied signal feedback and man made noise's safety of physical layer communication means

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Secure Communication Via an Untrusted Non-Regenerative Relay in Fading Channels;Jing Huang等;《IEEE Transactions on Signal Processing》;20130215;全文 *

Also Published As

Publication number Publication date
CN107360544A (en) 2017-11-17

Similar Documents

Publication Publication Date Title
CN107360544B (en) The position of mobile equipment control method and device of dynamic noise based on Signal to Interference plus Noise Ratio
US20220408277A1 (en) Information reporting method, access manner determining method, terminal, and network device
CN106680780B (en) Based on the radar optimum waveform design method that radio frequency is stealthy under frequency spectrum share environment
CN106465399A (en) Full duplex operation in wireless communication network
Pratas et al. Underlay of low-rate machine-type D2D links on downlink cellular links
KR101437296B1 (en) Message Security method in physical layer and apparatus for transmitting secure message using the same
CN104639289B (en) The orientation connection control method that idle node aids in a kind of WLAN
KR20220110552A (en) Neighbor cell CSI report transmission method, reception method and related apparatus
CN107437963B (en) Distributed safe beam forming method and device based on feedback control
JPWO2014147954A1 (en) Wireless communication apparatus and transmission power control method
CN107396307A (en) The position of mobile equipment control method and device of dynamic noise based on channel information
Sabuj et al. Uplink modeling of cognitive radio network using stochastic geometry
CN107436601B (en) The position control method and device of the mobile device of adaptive noise feedback
Thomsen et al. Full duplex emulation via spatial separation of half duplex nodes in a planar cellular network
CN107147426A (en) Anti-interference full-duplex communication device
CN107395260B (en) Distributed safe beam forming method and device based on artificial noise
CN113365337A (en) PHR reporting method, PHR receiving method, terminal and network equipment
Hu et al. Analysis of wireless energy harvesting relay throughput in Rician channel
CN107436602B (en) Position control method and device of mobile equipment based on single-bit feedback
Patil et al. SINR based routing for mobile ad-hoc networks
CN117083815A (en) Panel state processing method, communication device and storage medium
WO2019006693A1 (en) Mobile device position control method and apparatus based on dynamic noise of channel information
Yin et al. Uplink performance analysis of base station antenna heights in dense cellular networks
WO2019006712A1 (en) Mobile device position control method and apparatus based on single bit feedback
WO2019006711A1 (en) Mobile device position control method and apparatus based on dynamic noise with signal to interference plus noise ratio

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant