CN108199756A - The selection method of the active antenna group of transmitting terminal in generalized space modulation communication system - Google Patents
The selection method of the active antenna group of transmitting terminal in generalized space modulation communication system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
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Abstract
The invention discloses a kind of selection method of the active antenna group of transmitting terminal in generalized space modulation communication system, including：Receiving terminal in generalized space modulation communication system carries out channel estimation, and pass through feedback channel and the channel state information estimated is sent to transmitting terminal；Transmitting terminal receives the channel state information, and European away from the criterion processing channel state information using square minimax, determine transmitting terminal the corresponding least square of each active antenna group it is European away from；The corresponding least square of the more each active antenna group of transmitting terminal is European away from the least square for being worth maximum is European away from the active antenna group that corresponding active antenna group selection is generalized space modulation communication system.This method can improve the efficiency of signal transmission in generalized space modulation communication system, best error sign ratio performance can be obtained in the case where minimax is European away from criterion, the computation complexity of more than half is reduced compared to existing exhaust algorithm simultaneously, improves system performance.
Description
Technical field
The present invention relates to transmitting terminals in field of communication technology more particularly to a kind of modulation communication system based on generalized space
The selection method of active antenna group.
Background technology
Spatial modulation (SM) technology only has a transmitting antenna transmitting constellation to reflect as a kind of MIMO technology in synchronization
Exit point, with the advantage not available for traditional MIMO technique, including with high energy efficiency (EE) with
Higher spectrum efficiency (SE), receiver design complexities are low, transmitter design is simple etc., these advantages also allow it to become the 5th
One of hot spot alternative technique in third-generation mobile communication (5G).
As a kind of expansion technique of SM technologies, generalized space modulation (GenSM) technology is proposed to promote traditional SM
The spectrum efficiency of technology.In GenSM technologies, a transmitting antenna is had more than actively to transmit symbol, therefore in each time slot
It can be used for transmitting more information in spatial domain active antenna group.However, as a number of combinations, enlivening in GenSM systems
The number of antenna pair is not usually 2 integral number power, it is therefore desirable to introduce active antenna group selection technology in transmitting terminal.However,
Traditional active antenna group selection technology all there are it is certain the problem of, just for complexity or the single index of error sign ratio, than
Active antenna group selection technology such as based on channel status distribution, complexity is low but error sign ratio performance boost is limited；It is and poor
Although lifting algorithm can obtain European away from error sign ratio performance optimal under criterion in minimax, its computation complexity is very
It is high.
Invention content
The purpose of the present invention is intended to solve one of the technical issues of above-mentioned at least to a certain extent.
For this purpose, first purpose of the present invention is the active day of transmitting terminal in the generalized space modulation communication system proposed
The selection method of line group can improve the efficiency of signal transmission in generalized space modulation communication system, minimax it is European away from
Best error sign ratio performance can be obtained under criterion, while reduces the calculating of more than half compared to existing exhaust algorithm and answers
Miscellaneous degree, improves system performance.
To achieve these goals, transmitting terminal in the generalized space modulation communication system of first aspect present invention embodiment
The selection method of active antenna group, including：
Receiving terminal in generalized space modulation communication system carries out channel estimation, and passes through feedback channel and will estimate
Channel state information is sent to transmitting terminal；
Transmitting terminal receives the channel state information, and European away from the criterion processing channel shape using square minimax
State information, determine transmitting terminal the corresponding least square of each active antenna group it is European away from；
The corresponding least square of the more each active antenna group of transmitting terminal it is European away from, will be worth maximum least square it is European away from
Corresponding active antenna group selection is the active antenna group of generalized space modulation communication system.
Method as described above, described square of minimax is European to be away from criterion：
Wherein,For all transmitting assemble of symbol in the combination of n-th of active antenna group, n is
Positive integer；H is channel matrix, d2For the corresponding least square of active antenna group it is European away from.
Method as described above, it is described European away from the criterion processing channel state information using square minimax, it obtains
To transmitting terminal the corresponding least square of each active antenna group it is European away from, including：
For n-th of active antenna group, Ψ is establishedn- 1 tree, wherein, each tree has NrLayer；
I-th is set, determines that the first distance is：And determine second
Distance is：Wherein,The child node of kth layer for i-th tree,
The child node of the bottom for i-th tree；
More each second distance, by the second distance of value minimum be determined as i-th tree least square it is European away from；
Compare each tree of n-th active antenna group least square it is European away from, will be worth maximum least square it is European away from
Be determined as the corresponding least square of n-th of active antenna group it is European away from.
Method as described above, it is described to be directed to n-th of active antenna group, establish Ψn- 1 tree, including：
The Ψ of n-th of active antenna group is established according to matrix G and matrix Dn- 1 tree；
Wherein, matrix G is all for storingMatrix D is European for storing intersymbol square of all transmissions
Away from；Wherein, all possible transmitting symbol
Method as described above, the Ψ that n-th of active antenna group is established according to matrix G and matrix Dn- 1 tree, packet
It includes：
Establish each tree of n-th of active antenna group successively according to matrix G and matrix D；
For present tree, the least square of current layer that present tree is calculated according to matrix G and matrix D it is European away from；
Judge whether current layer is NrThe least square of layer or current layer is European away from whether scalar s is more than, if judging knot
Fruit is no, then next layer of the least square that present tree is iterated to calculate according to matrix G and matrix D is European away from until next layer is
NrLayer or next layer of least square are European away from whether scalar s is more than, to complete the foundation of present tree.
Method as described above, further includes：It is European away from update scalar s according to the least square of present tree.
Method as described above, before the transmitting terminal receives the channel state information, including：
The bit stream of generalized spatial modulation system to be transmitted is encoded according to the first predetermined transmission mode, bit point
Block, planisphere mapping.
Method as described above, first predetermined transmission mode include：System working frequency range, bandwidth of operation, scrambler side
Formula, coding mode, constellation mapping mode.
Method as described above, it is European will to be worth maximum least square away from corresponding active antenna group selection is wide described
After the active antenna group of adopted spatial modulation communication system, further include：
Antenna is carried out to mapping, adjusting to the bit stream of generalized spatial modulation system to be transmitted according to the second predetermined transmission mode
System, framing, AFE(analog front end) processing, transmission, analog back-end processing, frame decoding, demodulation, channel estimation, active antenna pair and star
Seat figure detection.
Method as described above, second predetermined transmission mode include：System antenna to mapping mode, interleaving mode,
Modulation system and framing mode.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
It obtains significantly or is recognized by the practice of the present invention.
Description of the drawings
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Significantly and it is readily appreciated that, wherein,
Fig. 1 is the choosing of the active antenna group of transmitting terminal in the generalized space modulation communication system that one embodiment of the invention provides
The flow diagram of selection method；
Fig. 2 is the schematic diagram of the corresponding one group of tree of illustrative n-th of active antenna group of the present invention；
Fig. 3 is the schematic diagram of i-th tree in one group of tree shown in Fig. 2.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the active antenna of transmitting terminal in the generalized space modulation communication system of the embodiment of the present invention is described
The flow diagram of the selection method of group.
Fig. 1 is the choosing of the active antenna group of transmitting terminal in the generalized space modulation communication system that one embodiment of the invention provides
The flow diagram of selection method.
As shown in Figure 1, in generalized space modulation communication system provided in this embodiment the active antenna group of transmitting terminal choosing
Selection method includes the following steps：
S101, receiving terminal in generalized space modulation communication system carry out channel estimation, and pass through feedback channel and will estimate
The channel state information counted out is sent to transmitting terminal.
Specifically, after receiving terminal carries out channel estimation, the channel state information estimated is transmitted by feedback channel
To transmitting terminal, it is assumed that channel estimation can obtain perfect channel state information, which passes through feedback
Channel transfer is to transmitting terminal.
S102, transmitting terminal receive the channel state information, and European away from described in criterion processing using square minimax
Channel state information, determine transmitting terminal the corresponding least square of each active antenna group it is European away from.
In one embodiment of the invention, before step S102, transmitting terminal in generalized space modulation communication system
The selection method of active antenna group further includes：
The bit stream of generalized spatial modulation system to be transmitted is encoded according to the first predetermined transmission mode, bit point
Block, planisphere mapping.
Wherein, the first predetermined transmission mode includes：System working frequency range, bandwidth of operation, scrambler mode, coding mode, star
Seat mapping mode.
It is European away from criterion that minimax is first introduced herein：
For simplifying the analysis, European away from criterion to be rewritten as square minimax European away from standard by minimax by the present invention
Then：
By formula (2) it is found that square minimax it is European it is European with minimax in itself away from criterion away from criterion be one
It causes, increase square is only to facilitate the operation of algorithm.
In one embodiment of the invention, the specific implementation of step S102 is：
Step S21, for n-th of active antenna group, Ψ is establishedn- 1 tree.
Specifically, it is assumed that the transmission antenna number of generalized spatial modulation system is Nt, the active antenna number of each time slot is Na,
Reception antenna number is Nr, planisphere mapping points are M, and channel matrix H, reception signal is y, and transmission signal is x.Institute in system
There is the optional active antenna group number to beAll CaOf the active antenna group utilized in a active antenna group by system
Number isIt is all possible transmitting symbol beIt is wherein each
A corresponding M rank constellation point.In generalized space modulation communication system, shareThe combination of a active antenna group, and it is every
The combination of one active antenna group all includes CuA active antenna group.All transmittings symbol in the combination of n-th of active antenna group
Number set is denoted asAnd have | Ψn|=Cu.The transmitting assemble of symbol note of the combination of all active antenna groups
Make Ξ={ Ψ1,Ψ2..., and have
Fig. 2 is the schematic diagram of the corresponding one group of tree of illustrative n-th of active antenna group of the present invention.As shown in Fig. 2, for
N-th of active antenna group, establishes Ψn- 1 tree, each tree have NrLayer.To the n of the root node of each tree, i is expressed asIt is right
The child node n of each tree kth layer, i (k) are expressed as
Fig. 3 is the schematic diagram of i-th tree in one group of tree shown in Fig. 2.As shown in figure 3, the root node n, i of i-th tree areThe child node n of kth layer, i (k) are expressed asThe degree of root node is Ψn- i, for example, the son of the 1st layer (Level-1)
Node is respectively：The child node of the 2nd layer (Level-2) is respectively：The
NrLayer (Level-Nr) child node be respectively：
To i-th tree of n-th of active antenna group, determine that the first distance is：
Wherein,The node of kth layer for each tree,The child node of the bottom for each tree.
It should be noted that the first distance be appreciated that for by between two nodes it is square European away from.By taking Fig. 3 as an example,
In Fig. 3, the degree of root node is Ψn- i, the label d of each edge, 2 (n), i, i+j, (k) is representedFor example,
It can be understood as root nodeWith the child node of first layerIt is square European away from the length of a line can be regarded as.
Determine that second distance is：
Specifically, second distance it is to be understood that the bottom child node to root node it is square European away from.For example,It can be understood as the child node of the bottom in the first branch of i-th treeWith root nodeIt is square European
Away from；It can be understood as the child node of the bottom in the second branch of i-th treeWith root nodeSquare Europe
Formula away from；……；It can be understood as the C of i-th treeuThe child node of the bottom in branchWith root node
It is square European away from.
For i-th tree, C is shareduA branch, it is determined that second distance be respectively：
Common CuA second distance.
The second distance of value minimum is determined as the least square Europe of i-th tree by step S22, more each second distance
Formula away from.
Step S23, the least square for comparing each tree of n-th active antenna group is European away from the minimum of value minimum is put down
Side it is European away from be determined as the corresponding least square of n-th of active antenna group it is European away from.
It is all firstly, for i-th treeIt is compared, the second distance of value minimum is determined as value minimum
Second distance be determined as i-th tree least square it is European away from
Then, the least square of more each tree is European away from the least square of value maximum is European away from being determined as n-th of work
The corresponding least square of the antenna sets that jump it is European away from：
In one embodiment of the invention, the structure of transmitting terminal structure tree, while build in two matrix storage sections
Between result of calculation and real-time update, to establish each tree.
Specifically, for n-th of active antenna group, Ψ is establishedn- 1 tree, including：N-th is established according to matrix G and matrix D
The Ψ of a active antenna groupn- 1 tree.Wherein, matrix G is all for storingMatrix D is used to store all transmission symbols
Between number it is square European away from；Wherein, all possible transmitting symbol
In one embodiment of the invention, the Ψ that n-th of active antenna group is established according to matrix G and matrix Dn-1
Tree, including：
Establish each tree of n-th of active antenna group successively according to matrix G and matrix D；
For present tree, the least square of current layer that present tree is calculated according to matrix G and matrix D it is European away from；
Judge whether current layer is NrThe least square of layer or current layer is European away from whether scalar s is more than, if judging knot
Fruit is no, then next layer of the least square that present tree is iterated to calculate according to matrix G and matrix D is European away from until next layer is
NrLayer or next layer of least square are European away from whether scalar s is more than, to complete the foundation of present tree.
Further, it is European away from update scalar s according to the least square of present tree.
Specifically, matrix is builtIt is all for storingWherein the i-th row of matrix G is used for after storing
Person is used for storingBuild matrixIt is European away from matrix D for storing intersymbol square of all transmissions
The i-th row jth row be used for storeMatrix G is both initialized to full 0 matrix with matrix D.
To each active antenna group, safeguard a scalar s as this active antenna group current least square it is European away from,
Its initial value is just infinite.To n-th of active antenna group, one tree is initialized according to matrix G and matrix D.It finds later
It is current with least square it is European away from leafy node, it is square European away from being represented byK
Represent the layer of this leafy node.If K<NrAndThis leafy node is then extended to+1 layer of kth.This process is
Iteration, until K=NrOrIfThen terminate this tree establishes process, then goes to establish next tree.
Else if K=Nr, update firstThe process of establishing of this tree is terminated again, and turns to go to establish next tree.At end
It only establishes after this one tree, needs data update matrix G and matrix D according to this tree.
For other trees, other trees are established according to the flow for establishing one tree.Establishing Ψn- 1 is set it
Afterwards, last s be this active antenna group least square it is European away from.
Here the matrix G introduced is ensured with matrix D to allWithCalculating at most operation one
It is secondary.Therefore, the computation complexity of this algorithm is not above exhaust algorithm.In this algorithm, in all trees not deployed node with
Side can significantly reduce computation complexity.
It is European away from criterion that the present embodiment is based on minimax, introduces the structure of tree, and the costs search such as utilizes to select to live
Jump antenna sets.Compare exhaust algorithm, based on minimax it is European away from criterion in the case of obtain identical optimal erratum number
Rate performance, and computation complexity can reduce by more than 50；Compare the active antenna group selection skill being distributed based on channel status
Art, in the case of no excessively promotion computation complexity, hence it is evident that promote error sign ratio performance.
S103, the corresponding least square of more each active antenna group it is European away from, will be worth maximum least square it is European away from
Corresponding active antenna group selection is the active antenna group of generalized space modulation communication system.
Specifically, obtain the corresponding least square of each active antenna group it is European away fromLater, it is value is maximum most
Small square is European away from the active antenna group that corresponding active antenna group selection is generalized space modulation communication system, completes entire living
Jump antenna sets selection course.
In one embodiment of the invention, after step s 103, transmitting terminal in generalized space modulation communication system
The selection method of active antenna group further includes：
Antenna is carried out to mapping, adjusting to the bit stream of generalized spatial modulation system to be transmitted according to the second predetermined transmission mode
System, framing, AFE(analog front end) processing, transmission, analog back-end processing, frame decoding, demodulation, channel estimation, active antenna pair and star
Seat figure detection, wherein, the second predetermined transmission mode includes：System antenna is to mapping mode, interleaving mode, modulation system and group
Frame mode.
In one embodiment of the invention, after receiving terminal completes channel estimation, according to third predetermined transmission mode
To the active antenna of acquisition to number with send constellation mapping symbol progress antenna to demapping, planisphere demapping, than extra heavy
Group, decoding.Wherein, the third predetermined transmission mode includes：System working frequency range, bandwidth of operation, descrambling mode, decoding side
Formula, antenna are to demapping mode, constellation demapping mode, deinterleaving mode and bit recombination mode.
The selection method of the active antenna group of transmitting terminal in generalized space modulation communication system provided in this embodiment, packet
It includes：Receiving terminal in generalized space modulation communication system carries out channel estimation, and pass through the channel that feedback channel will estimate
Status information is sent to transmitting terminal；Transmitting terminal receives the channel state information, and European away from criterion using square minimax
Handle the channel state information, determine transmitting terminal the corresponding least square of each active antenna group it is European away from；Transmitting terminal ratio
The corresponding least square of more each active antenna group is European away from the least square for being worth maximum is European away from corresponding active antenna group
The active antenna group of selected as generalized space modulation communication system.This method can improve to be believed in generalized space modulation communication system
The efficiency of number transmission, can obtain best error sign ratio performance in the case where minimax is European away from criterion, while compared to existing
Exhaust algorithm reduces the computation complexity of more than half, improves system performance.In addition, this method is applicable to next-generation shifting
Generalized space modulation technique active antenna group selection business in dynamic communication standard, broadcast standard, underwater sound communication standard, has pole
For wide market-oriented prospect.
In the description of this specification, reference term " one embodiment ", " example ", " is specifically shown " some embodiments "
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It is combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the different embodiments or examples described in this specification and the feature of different embodiments or examples
It closes and combines.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, " multiple " are meant that at least two, such as two, three
It is a etc., unless otherwise specifically defined.
Any process described otherwise above or method description are construed as in flow chart or herein, represent to include
Module, segment or the portion of the code of the executable instruction of one or more the step of being used to implement custom logic function or process
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, to perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system, including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) it uses or combines these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment
It puts.The more specific example (non-exhaustive list) of computer-readable medium is including following：Electricity with one or more wiring
Connecting portion (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that can on it the paper of print routine or other suitable be situated between
Matter, because can be for example by carrying out optical scanner to paper or other media, then into edlin, interpretation or when necessary with other
Suitable method is handled electronically to obtain program, is then stored in computer storage.
It should be appreciated that each section of the present invention can be realized with hardware, software, firmware or combination thereof.Above-mentioned
In embodiment, software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage
Or firmware is realized.Such as, if realized with hardware in another embodiment, following skill well known in the art can be used
Any one of art or their combination are realized：With for data-signal realize logic function logic gates from
Logic circuit is dissipated, the application-specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene can compile
Journey gate array (FPGA) etc..
Those skilled in the art are appreciated that realize all or part of step that above-described embodiment method carries
Suddenly be that relevant hardware can be instructed to complete by program, program can be stored in a kind of computer readable storage medium
In, the program when being executed, one or a combination set of the step of including embodiment of the method.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, it can also
That each unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
The form that hardware had both may be used in block is realized, can also be realized in the form of software function module.If integrated module with
The form of software function module realize and be independent product sale or in use, can also be stored in one it is computer-readable
It takes in storage medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..Although it has been shown and retouches above
The embodiment of the present invention is stated, it is to be understood that above-described embodiment is exemplary, it is impossible to be interpreted as the limit to the present invention
System, those of ordinary skill in the art can be changed above-described embodiment, change, replace and become within the scope of the invention
Type.
Claims (10)
1. a kind of selection method of the active antenna group of transmitting terminal in generalized space modulation communication system, which is characterized in that including：
Receiving terminal in generalized space modulation communication system carries out channel estimation, and pass through the channel that feedback channel will estimate
Status information is sent to transmitting terminal；
Transmitting terminal receives the channel state information, and believes using square minimax is European away from the criterion processing channel status
Breath, determine transmitting terminal the corresponding least square of each active antenna group it is European away from；
The corresponding least square of the more each active antenna group of transmitting terminal is European away from the least square for being worth maximum is European away from correspondence
Active antenna group selection be generalized space modulation communication system active antenna group.
2. the method as described in claim 1, which is characterized in that described square of minimax is European to be away from criterion：
Wherein,For all transmitting assemble of symbol in the combination of n-th of active antenna group, n is just whole
Number；H is channel matrix, d2For the corresponding least square of active antenna group it is European away from.
3. the method as described in claim 1, which is characterized in that described European away from described in criterion processing using square minimax
Channel state information, obtain transmitting terminal the corresponding least square of each active antenna group it is European away from, including：
For n-th of active antenna group, Ψ is establishedn- 1 tree, wherein, each tree has NrLayer；
I-th is set, determines that the first distance is：And determining second distance
For：Wherein,The child node of kth layer for i-th tree,For
The child node of the bottom of i-th tree；
More each second distance, by the second distance of value minimum be determined as i-th tree least square it is European away from；
The least square for comparing each tree of n-th of active antenna group is European away from the least square for being worth maximum is European away from determining
For the corresponding least square of n-th of active antenna group it is European away from.
4. method as claimed in claim 3, which is characterized in that it is described to be directed to n-th of active antenna group, establish Ψn- 1 tree,
Including：
The Ψ of n-th of active antenna group is established according to matrix G and matrix Dn- 1 tree；
Wherein, matrix G is all for storingMatrix D for store intersymbol square of all transmissions it is European away from；Its
In, all possible transmitting symbol
5. method as claimed in claim 4, which is characterized in that described that n-th of active antenna is established according to matrix G and matrix D
The Ψ of groupn- 1 tree, including：
Establish each tree of n-th of active antenna group successively according to matrix G and matrix D；
For present tree, the least square of current layer that present tree is calculated according to matrix G and matrix D it is European away from；
Judge whether current layer is NrThe least square of layer or current layer is European away from whether scalar s is more than, if judging result is
It is no, then it is European away from until next layer is N according to next layer of the least square of matrix G and matrix D iterative calculation present treer
Layer or next layer of least square are European away from whether scalar s is more than, to complete the foundation of present tree.
6. method as claimed in claim 5, which is characterized in that further include：It is European away from update according to the least square of present tree
Scalar s.
7. the method as described in claim 1, which is characterized in that before the transmitting terminal receives the channel state information,
Including：
The bit stream of generalized spatial modulation system to be transmitted is encoded according to the first predetermined transmission mode, bit piecemeal, star
Seat figure mapping.
8. the method for claim 7, which is characterized in that first predetermined transmission mode includes：System working frequency range,
Bandwidth of operation, scrambler mode, coding mode, constellation mapping mode.
9. the method as described in claim 1, which is characterized in that described that the least square for being worth maximum is European away from corresponding work
It jumps after the active antenna group of antenna sets selected as generalized space modulation communication system, further includes：
The bit stream of generalized spatial modulation system to be transmitted is carried out according to the second predetermined transmission mode antenna to mapping, modulating,
Framing, AFE(analog front end) processing, transmission, analog back-end processing, frame decoding, demodulation, channel estimation, active antenna pair and planisphere
Detection.
10. method as claimed in claim 9, which is characterized in that second predetermined transmission mode includes：System antenna mapping
Penetrate mode, interleaving mode, modulation system and framing mode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711486255.3A CN108199756B (en) | 2017-12-29 | 2017-12-29 | Selection method of active antenna group of transmitting end in generalized spatial modulation communication system |
| PCT/CN2018/117227 WO2019128585A1 (en) | 2017-12-29 | 2018-11-23 | Method for selecting active antenna group of transmitting end in generalized spatial modulation communication system |
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| WO2019128585A1 (en) * | 2017-12-29 | 2019-07-04 | 清华大学 | Method for selecting active antenna group of transmitting end in generalized spatial modulation communication system |
| CN110995330A (en) * | 2019-12-05 | 2020-04-10 | 电子科技大学 | Antenna selection method based on grouping and EDAS algorithm |
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| CN110855328B (en) * | 2019-10-25 | 2021-01-19 | 西安交通大学 | Differential spatial modulation method, device and storage medium based on antenna grouping |
| CN110855333B (en) * | 2019-11-13 | 2021-05-11 | 中国计量大学 | Differential transmission method based on generalized spatial modulation |
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