CN107148029A - A kind of wireless body area network transmission method and device - Google Patents
A kind of wireless body area network transmission method and device Download PDFInfo
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- CN107148029A CN107148029A CN201610115437.9A CN201610115437A CN107148029A CN 107148029 A CN107148029 A CN 107148029A CN 201610115437 A CN201610115437 A CN 201610115437A CN 107148029 A CN107148029 A CN 107148029A
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Abstract
This application provides a kind of wireless body area network transmission method and device, wireless body area network transmission method includes：Obtain Preset Transfer layer iterative formula, default media access control MAC layer iterative formula and predetermined physical layer iterative formula；Respectively using Preset Transfer layer iterative formula, the default MAC layer iterative formula and predetermined physical layer iterative formula, the transport layer rate of convergence value of current ink sending node is calculated respectively, MAC layer restrains access probability value and physical layer convergence sending power consumption value, the Preset Transfer layer iterative formula, default media access control MAC layer iterative formula and predetermined physical layer iterative formula maximize object function and the default generation of the maximization bound for objective function by default, the maximization object function includes two variables of network life and network utility, for calculating network effectiveness and the maximum of network life sum.Therefore, the application has reached the purpose that network utility gets both with network life.
Description
Technical field
The application is related to wireless body area network technical field, more particularly to a kind of wireless body area network transmission method and device.
Background technology
Wireless body area network technology is using being arranged in body or the terminal node (i.e. link sending node) of body surface is gathered
Biological information of human body, biological information of human body is through being wirelessly transmitted to destination node, and destination node, which is responsible for setting up with public network, to communicate, by people
Body biological information is transmitted to public network, so as to realize the intelligent medical application such as tele-medicine and health monitoring.
At present, in the transmission plan in wireless body area network technology, due at the beginning of wireless body area network link sending node
Beginning energy is certain, therefore in the network life of any one link sending node in extending wireless body area network, in the unit interval
Consumed energy tails off, and causes network utility to reduce, and improve wireless body area network in any one link sending node speed
When improving the network utility of wireless body area network any one link sending node, the energy of consumption is carried in the unit interval
Height, causes network life to shorten.But, any one current transmission plan can not make link sending node network life and
Network utility sum reaches that maximum reaches the purpose that both network life and network utility get both.
Therefore, the transmission plan presence in current wireless body area network technology can not reach the network of link sending node
The problem of purpose that life-span and network utility get both.
The content of the invention
In order to solve the above technical problems, the embodiment of the present application provides a kind of wireless body area network method and device for transmitting, to reach
The purpose that network utility gets both with network life, technical scheme is as follows：
A kind of wireless body area network transmission method, including：
Obtain Preset Transfer layer iterative formula, default media access control MAC layer iterative formula and predetermined physical stacking generation
Formula；
Respectively using Preset Transfer layer iterative formula, the default MAC layer iterative formula and predetermined physical layer
Iterative formula, calculates the transport layer rate of convergence value, MAC layer convergence access probability value and thing of current ink sending node respectively
Layer convergence sending power consumption value is managed, so that the current ink node uses the transport layer rate of convergence value, MAC layer convergence access
Probable value and physical layer convergence sending power consumption value, carry out data transmission；
The Preset Transfer layer iterative formula, default media access control MAC layer iterative formula and predetermined physical stacking generation
The default generating process of formula, including：
Obtain default maximization object function and the maximization bound for objective function, the maximization target letter
Number includes two variables of network life and network utility, for calculating network effectiveness and the maximum of network life sum；
The maximization object function and the maximization bound for objective function are derived, calculated default
Transport layer iterative formula, default MAC layer iterative formula and predetermined physical layer iterative formula.
It is preferred that, the maximization object function is：MaximizeThe γ joins for system
Number, and less than 1, the Us(xs) it is network utility function, the TnetIt is described for network lifeFor summing function, the s
For the link sending node on link (i, j), the i in the link (i, j) is link sending node, and j is destination node；
The constraints includes：xs≤cij(e)·τij、With
The xsFor the transmission rate of any one link sending node on link (i, j), the cij(e) for link (i,
J) link capability, the link (i, j) jumps connecting link, the τ for the one of link sending node i to destination node jijFor chain
The probability of road (i, j) Successful transmissions, it is describedFor link sending node i transmission per unit of time average power consumptions, the E0Sent out for link
Send the primary power of node i, the ti=1/Ti, the TiFor in link (i, j) during the existence of service priority highest node
Between, the min TiEqual to Tnet, the PiSuccessful probability, the P are competed for the access link of node ikChain is accessed for node k
Road competes successful probability, Ninterference(ij) it is the set of the point interfered in link (i, j) transmitting procedure, Π is company
Multiplication, the T is symbol period, and e is the vector form that link (i, j) transmits power consumption, constant K=(- φ1/log(φ2BER)), wherein φ1And φ2Related with modulation system, BER is the bit error rate, and link l signal to noise ratio is defined asWherein, eijFor transmission power consumption scalar form, GkiFor path loss, nijFor noise,
GijFor the path gain on link l, if sending information simultaneously in the absence of excessive neighbor node, KSIR is much larger than 1, in high noise
Than in region, cijIt is approximately equal to log (KSIRij(e)), the l represents link (i, j).
It is preferred that, the maximization object function and the maximization bound for objective function are derived, counted
The process of Preset Transfer layer iterative formula, default MAC layer iterative formula and predetermined physical layer iterative formula is calculated, including：
By introducing congestion factor and Energy consumption factor, using Lagrange duality method to it is described maximization object function and
The maximization bound for objective function is solved, and generates Lagrangian；
Orthogonal decomposition is carried out to the Lagrangian, decomposition obtains three sub- prioritization schemes and arrives correspondence transmission respectively
Layer, MAC layer and physical layer；
The optimal value of every sub- prioritization scheme is solved using gradient method, Preset Transfer layer iterative formula is respectively obtained, presets
MAC layer iterative formula and predetermined physical layer iterative formula.
It is preferred that, using Preset Transfer layer iterative formula, calculate the transport layer convergence of current ink sending node
The process of rate value, including：
Use Preset Transfer layer iterative formulaCalculate current
The transmission rate value of link sending node, until the x's(t+1) restrain；
By the x's(t+1) corresponding rate value is restrained as the rate of convergence value of current ink sending node；
Wherein, the x's(t+1) corresponding rate value is transmission rate of the current ink sending node at (t+1) moment,
The x's(t) corresponding rate value is current ink sending node in the transmission rate of t, the κ3(t) when being t iteration
Positive step-length；Represent span asx′s=log xs, τ 'ij=log τij,
The λlFor congestion factor, the λlCurrency beThe μl(t) according to formulaCalculating is obtained, the μlFor energy factors, wherein, κ1, κ2For
Positive step-length during t iteration, []+It is arithmetic number to represent domain value range, to ensure the factor (λ, μ) non-negative.
It is preferred that, using the default MAC layer iterative formula, calculate the MAC convergence accesses of current ink sending node
The process of probable value, including：Use the default MAC layer iterative formulaCalculate current ink
The access link of sending node competes successful probability, until the PiConvergence；
By the PiCorresponding access link competes successful probability as the convergence of current ink sending node during convergence
Access probability value；
It is describedLinterference(l) interfered with link l transmission
Link, ωiFor priority factors, wherein ωiMeet
It is preferred that, using predetermined physical layer iterative formula, calculate the physical layer convergence of current ink sending node
The process of sending power consumption value, including：
Use predetermined physical layer iterative formula
The physical layer sending power consumption value of current ink sending node is calculated, until the ei(t+1) restrain；
By the ei(t+1) corresponding sending power consumption value is sent out as the physical layer convergence of current ink sending node when restraining
Send power consumption number；
Wherein, the ei(t+1) for node i in the node physical layer sending power consumption at (t+1) moment, the ei(t) it is node
I is in the node physical layer sending power consumption of t, κ4(t) the positive step-length for being for t iteration,Represent span asN is the transmission delivery number of times obtained by node is calculated with mean power,The Shighest_UPFor
The set of service priority highest node；
It is describedFor calculating current ink
When sending node is service priority highest node, the physical layer sending power consumption value of current ink sending node；
It is describedFor calculating in current ink sending node
During non-traffic highest priority node, the physical layer sending power consumption value of current ink sending node.
A kind of wireless body area network transmitting device, including：
First acquisition unit, for obtaining Preset Transfer layer iterative formula, default media access control MAC layer iterative formula
And predetermined physical layer iterative formula；
First computing unit, for using Preset Transfer layer iterative formula, the default MAC layer iterative formula respectively
And the predetermined physical layer iterative formula, the transport layer rate of convergence value of current ink sending node, MAC layer are calculated respectively to be received
Access probability value and physical layer convergence sending power consumption value are held back, so that the current ink node uses the transport layer rate of convergence
Value, MAC layer convergence access probability value and physical layer convergence sending power consumption value, carry out data transmission；
Presetting module, for the default generation Preset Transfer layer iterative formula, default media access control MAC layer iteration
Formula and predetermined physical layer iterative formula；
The presetting module includes：Second acquisition unit, for obtaining default maximization object function and the maximization
Bound for objective function, the maximization object function includes two variables of network life and network utility, based on
Calculate network utility and the maximum of network life sum；
Second computing unit, for entering to the maximization object function and the maximization bound for objective function
Row is derived, and calculates Preset Transfer layer iterative formula, default MAC layer iterative formula and predetermined physical layer iterative formula.
It is preferred that, the second computing unit includes：
First solves unit, for by introducing congestion factor and Energy consumption factor, using Lagrange duality method to institute
State maximization object function and the maximization bound for objective function is solved, generate Lagrangian；
Resolving cell, for carrying out orthogonal decomposition to the Lagrangian, decomposition obtains three sub- prioritization schemes point
It is clipped to correspondence transport layer, MAC layer and physical layer；
Second solves unit, the optimal value for solving each word prioritization scheme using gradient method, respectively obtains default biography
Defeated layer iterative formula, default MAC layer iterative formula and predetermined physical layer iterative formula.
It is preferred that, first computing unit includes：
3rd computing unit, for using Preset Transfer layer iterative formulaThe transmission rate value of current ink sending node is calculated, until the x's
(t+1) restrain；
First determining unit, for by the x's(t+1) restrain corresponding rate value and be used as current ink sending node
Rate of convergence value；
Wherein, the x's(t+1) corresponding speed is transmission rate of the current ink sending node at (t+1) moment, described
x's(t) corresponding speed is current ink sending node in the transmission rate of t, the κ3(t) forward direction when for t iteration
Step-length；Represent span asx′s=log xs, τ 'ij=log τij,The λl
For congestion factor, the λlCurrency be
The μl(t) according to formulaCalculating is obtained, the μlFor energy
The factor, wherein, κ1, κ2Positive step-length during for the t times iteration, []+It is arithmetic number to represent domain value range, with ensure the factor (λ,
μ) non-negative.
It is preferred that, first computing unit includes：
4th computing unit, for using the default MAC layer iterative formulaCalculate and work as
The access link of preceding link sending node competes successful probability, until the PiConvergence；
Second determining unit, for by the PiCorresponding access link competes successful probability and is used as current chain during convergence
The convergence access probability value of road sending node；
It is describedLinterference(l) interfered with link l transmission
Link, ωiFor priority factors, wherein ωiMeet
It is preferred that, first computing unit includes：
5th computing unit, for using predetermined physical layer iterative formulaCurrent ink is calculated to send
The physical layer sending power consumption value of node, until the ei(t+1) restrain；
3rd determining unit, for by the ei(t+1) corresponding sending power consumption value is sent as current ink when restraining
The physical layer convergence sending power consumption value of node；
Wherein, the ei(t+1) for node i in the node physical layer sending power consumption at (t+1) moment, the ei(t) it is node
I is in the node physical layer sending power consumption of t, κ4(t) the positive step-length for being for t iteration,Represent span asN is the transmission delivery number of times obtained by node is calculated with mean power,
Compared with prior art, the application has the beneficial effect that：
In this application, due to Preset Transfer layer iterative formula, default media access control MAC layer iterative formula and default
Physical layer iterative formula is by calculating maximizing object function and maximizing after bound for objective function is derived
Going out, and maximize object function includes two variables of network life and network utility, and maximizing object function is used to calculate
Network utility and the maximum of network life sum can calculate network utility and network longevity by maximizing object function
The maximum of sum is ordered, therefore current ink sending node is by using Preset Transfer layer iterative formula, default media interviews control
Transport layer rate of convergence value, the MAC layer that MAC layer iterative formula processed and predetermined physical layer iterative formula are calculated restrain access probability
Value and physical layer convergence sending power consumption value, carry out the transmission of data, can make the network utility and net of current ink sending node
Network life-span sum reaches maximum, so as to reach the purpose that network utility gets both with network life.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the present application, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present application, for
For those of ordinary skill in the art, without having to pay creative labor, it can also be obtained according to these accompanying drawings
His accompanying drawing.
Fig. 1 is a kind of a kind of flow chart for wireless body area network transmission method that the application is provided；
Fig. 2 is a kind of a kind of sub-process figure for wireless body area network transmission method that the application is provided；
Fig. 3 is a kind of another sub-process figure for wireless body area network transmission method that the application is provided；
Fig. 4 is a kind of another sub-process figure for wireless body area network transmission method that the application is provided；
Fig. 5 is a kind of another sub-process figure for wireless body area network transmission method that the application is provided；
Fig. 6 is a kind of a kind of structural representation for wireless body area network transmitting device that the application is provided；
Fig. 7 is a kind of a kind of structural representation for second computing unit that the application is provided.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.It is based on
Embodiment in the application, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of the application protection.
One embodiment
Fig. 1 is referred to, a kind of a kind of flow chart of the wireless body area network transmission method provided it illustrates the application can be with
Comprise the following steps：
Step S11：Obtain Preset Transfer layer iterative formula, default MAC (media access control, Media Access
Control) layer iterative formula and predetermined physical layer iterative formula.
In the present embodiment, Preset Transfer layer iterative formula, default MAC layer iterative formula and predetermined physical layer iterative formula
Generate in advance.
Wherein, the default life of Preset Transfer layer iterative formula, default MAC layer iterative formula and predetermined physical layer iterative formula
Can be into process：
Step A11：Obtain default maximization object function and the maximization bound for objective function, the maximum
Changing object function includes two variables of network life and network utility, for calculating network effectiveness and network life sum most
Big value.
By maximizing object function, the network utility and network life sum of current ink sending node can be calculated
Maximum.
Step A12：The maximization object function and the maximization bound for objective function are derived, counted
Calculate Preset Transfer layer iterative formula, default MAC layer iterative formula and predetermined physical layer iterative formula.
Default generating process is carried out before the step S11 of the wireless body area network transmission method shown in Fig. 1 starts to perform
, and only need to perform once default generating process.In the step for starting the wireless body area network transmission method shown in execution Fig. 1
During rapid S11, Preset Transfer layer iterative formula, default MAC layer iterative formula and predetermined physical layer iterative formula are directly obtained.
Step S12：Respectively using Preset Transfer layer iterative formula, the default MAC layer iterative formula and described pre-
If physical layer iterative formula, transport layer rate of convergence value, the MAC layer convergence access that current ink sending node is calculated respectively are general
Rate value and physical layer convergence sending power consumption value, so that the current ink node uses the transport layer rate of convergence value, MAC layer
Access probability value and physical layer convergence sending power consumption value are restrained, is carried out data transmission.
Any one link in wireless body area network at least includes 1 link sending node, and wireless body area network is at least wrapped
Include a link.
In the present embodiment, using Preset Transfer layer iterative formula, the transport layer for calculating current ink sending node is received
Hold back rate value.Using default MAC layer iterative formula, the MAC layer convergence access probability value of current ink sending node is calculated.Make
With predetermined physical layer iterative formula, the physical layer convergence sending power consumption value of current ink sending node is calculated.Work as calculating
The preceding respective transport layer rate of convergence value of link sending node, MAC layer convergence access probability value and physical layer convergence sending power consumption
After value, current ink sending node is sent using transport layer rate of convergence value, MAC layer convergence access probability value and physical layer convergence
Power consumption number, carries out data transmission.
For any one link sending node in wireless body area network, step S11 and step S12 are applicable.Calculating
Transport layer rate of convergence value, MAC layer convergence access probability value and the physical layer convergence of any one link sending node send work(
During consumption value, the link sending node currently calculated is current ink sending node.
In this application, due to Preset Transfer layer iterative formula, default media access control MAC layer iterative formula and default
Physical layer iterative formula is by calculating maximizing object function and maximizing after bound for objective function is derived
Going out, and maximize object function includes two variables of network life and network utility, and maximizing object function is used to calculate
Network utility and the maximum of network life sum can calculate network utility and network longevity by maximizing object function
The maximum of sum is ordered, therefore current ink sending node is by using Preset Transfer layer iterative formula, default media interviews control
Transport layer rate of convergence value, the MAC layer that MAC layer iterative formula processed and predetermined physical layer iterative formula are calculated restrain access probability
Value and physical layer convergence sending power consumption value, carry out the transmission of data, can make the network utility and net of current ink sending node
Network life-span sum reaches maximum, so as to reach the purpose that network utility gets both with network life.
Wherein, the wireless body area network transmission method shown in Fig. 1 is reaching the purpose that network utility gets both with network life
Meanwhile, it equally ensure that the low-power consumption requirement of wireless body area network transmission.
The maximization object function in wireless body area network transmission method shown in Fig. 1 can be：Maximize
Wherein, the γ is systematic parameter, and less than 1, the Us(xs) it is network utility function, the TnetFor the network longevity
Life, it is describedFor summing function, the s is that the i in the link sending node on link (i, j), the link (i, j) is transmission
Node, j is destination node.
The constraints includes：xs≤cij(e)·τij、With
The xsFor the transmission rate of any one link sending node on link (i, j), the cij(e) for link (i,
J) link capability, the link (i, j) jumps connecting link, the τ for the one of link sending node i to destination node jijFor chain
The probability of road (i, j) Successful transmissions, it is describedFor link sending node i transmission per unit of time average power consumptions, the E0Sent out for link
Send the primary power of node i, the ti=1/Ti, the TiFor in link (i, j) during the existence of service priority highest node
Between, the minTiEqual to Tnet, the PiSuccessful probability, the P are competed for link sending node i access linkkFor link
Sending node k access link competes successful probability, Ninterference(ij) it is to interfere in link (i, j) transmitting procedure
The set of point, Π is even multiplication, and the T is symbol period, and e is the vector form that link (i, j) transmits power consumption, constant K=
(-φ1/log(φ2BER)), wherein φ1And φ2Related with modulation system, BER is the bit error rate, and link l signal to noise ratio is defined asWherein, eijFor transmission power consumption scalar form, GkiFor path loss, nijFor noise,
GijFor the path gain on link l, if sending information simultaneously in the absence of excessive neighbor node, KSIR is much larger than 1, in high noise
Than in region, cijIt is approximately equal to log (KSIRij(e)), the l represents link (i, j).
In the present embodiment, data link can be represented by l, naturally it is also possible to be represented by link (i, j).
xs≤cij(e)·τijThe physical significance of sign is：The transmission rate of current ink sending node is necessarily no more than
The maximum link ability of link (i, j).Wherein, maximum link ability is the maximum transmitted speed that current ink (i, j) can undertake
Rate.
The physical significance of sign is：Current ink sending node is within life cycle, and the ability of consumption is necessarily not
More than the primary power of current ink sending node.
Another embodiment
In the present embodiment, thus it is shown that to the maximization object function and the constraint bar of the maximization object function
Part is derived, and calculates the mistake of Preset Transfer layer iterative formula, default MAC layer iterative formula and predetermined physical layer iterative formula
Journey, refers to Fig. 2, and Fig. 2 is illustrated that a kind of a kind of sub-process figure for wireless body area network transmission method that the application is provided, can be with
Comprise the following steps：
Step S21：By introducing congestion factor and Energy consumption factor, using Lagrange duality method to the maximization mesh
Scalar functions and the maximization bound for objective function are solved, and generate Lagrangian.
Step S22：Orthogonal decomposition is carried out to the Lagrangian, decomposition obtains three sub- prioritization schemes and arrived respectively pair
Answer transport layer, MAC layer and physical layer.
Step S23：The optimal value of every sub- prioritization scheme is solved using gradient method, Preset Transfer stacking generation is respectively obtained public
Formula, default MAC layer iterative formula and predetermined physical layer iterative formula.
Based on shown in the wireless body area network transmission method and Fig. 2 shown in Fig. 1 to the maximization object function and described
Maximize bound for objective function derived, calculate Preset Transfer layer iterative formula, preset MAC layer iterative formula and
The process of predetermined physical layer iterative formula, the transport layer iterative formula calculated is：Wherein, the x's(t+1) corresponding rate value sends for current ink
Transmission rate of the node at (t+1) moment, the x's(t) corresponding rate value is biography of the current ink sending node in t
Defeated speed, the κ3(t) positive step-length when for t iteration；Represent span asx's=logxs,
τ′ij=log τij,The λlFor congestion factor, the λlCurrency beThe μl(t) according to formulaCalculating is obtained, the μlFor energy factors, wherein, κ1, κ2For
Positive step-length during t iteration, []+It is arithmetic number to represent domain value range, to ensure work factor (λ, μ) non-negative.
Presetting MAC layer iterative formula isWherein,Linterference(l) it is to transmit the link interfered, ω with link liTo be excellent
The first level factor, wherein ωiMeet
Predetermined physical layer iterative formula be：
Wherein, the ei(t+1) the node physical layer for node i at (t+1) moment launches power consumption, the ei(t) for node i in t
Node physical layer transmitting power consumption, κ4(t) the positive step-length for being for t iteration,Represent span asN is
Node with mean power calculate obtained by transmission deliver number of times,The Shighest_UPFor service priority most
The set of high node, it is describedWork as calculating
When preceding link sending node is service priority highest node, the physical layer sending power consumption value of current ink sending node；It is describedFor calculating in current ink sending node non-traffic priority
During highest node, the physical layer sending power consumption value of current ink sending node.
Due to Preset Transfer layer iterative formula, the default MAC layer iterative formula and predetermined physical layer iterative formula
Each carry out calculating each self-corresponding transport layer rate of convergence value, MAC layer convergence access probability value and physical layer convergence transmission work(
Consumption value, therefore calculate the scheme of transport layer rate of convergence value, MAC layer convergence access probability value and physical layer convergence sending power consumption value
For distributed computing approach, transport layer, MAC layer and physical layer are independent of each other in calculating process.
Further embodiment
In the present embodiment, thus it is shown that using Preset Transfer layer iterative formula, calculate current ink and send section
The process of the transport layer rate of convergence value of point, refers to Fig. 3, and Fig. 3 is illustrated that a kind of wireless body area network that the application is provided is passed
Another sub-process figure of transmission method, may comprise steps of：
Step S31：Use Preset Transfer layer iterative formula
The transmission rate value of current ink sending node is calculated, until the x's(t+1) restrain.
Step S32：By the x's(t+1) the corresponding rate value of corresponding speed convergence is used as current ink sending node
Rate of convergence value.
Further embodiment
In the present embodiment, thus it is shown that use the default MAC layer iterative formula, calculate current ink sending node
MAC restrain the process of access probability value, refer to Fig. 4, Fig. 4 is illustrated that a kind of wireless body area network transmission that the application is provided
Another sub-process figure of method, may comprise steps of：
Step S41：Use the default MAC layer iterative formulaCalculate current ink hair
The access link of node is sent to compete successful probability, until the PiConvergence.
In the present embodiment, current ink sending node i is according to its congestion cost λlWith energy cost μl, calculate with it is above-mentioned
Link interferes the λ of linkkAnd μk, and then calculate ki。
Calculate kiAfterwards, the access link for calculating current ink sending node competes successful probability Pi, until PiConvergence.
Step S42：By the PiCorresponding access link competes successful probability as current ink and sends section during convergence
The convergence access probability value of point.
Further embodiment
In the present embodiment, thus it is shown that using predetermined physical layer iterative formula, calculate current ink and send section
The process of the physical layer convergence sending power consumption value of point, refers to Fig. 5, and Fig. 5 is illustrated that a kind of wireless body area that the application is provided
Another sub-process figure of net transmission method, may comprise steps of：
Step S51：Use predetermined physical layer iterative formulaCurrent ink is calculated to send
The physical layer sending power consumption value of node, until the ei(t+1) restrain.
In the present embodiment, first according to the congestion factor of current ink sending node, signal to noise ratio, last iteration energy
Numerical quantity and link transmission gain, calculate mj(t)。
M is calculated againj(t) after, formula is substituted intoTo ei(t+1) counted
Calculate, until ei(t+1) restrain.
Step S52：By the ei(t+1) restrain when corresponding sending power consumption value as current ink sending node physics
Layer convergence sending power consumption value.
For foregoing each method embodiment, in order to be briefly described, therefore it is all expressed as to a series of combination of actions, but
It is that those skilled in the art should know, the application is not limited by described sequence of movement, because according to the application, certain
A little steps can be carried out sequentially or simultaneously using other.Secondly, those skilled in the art should also know, be retouched in specification
The embodiment stated belongs to preferred embodiment, necessary to involved action and module not necessarily the application.
It is corresponding with above method embodiment, this application provides a kind of wireless body area network transmitting device, Fig. 6 is referred to,
Fig. 6 is illustrated that a kind of a kind of structural representation for wireless body area network transmitting device that the application is provided, wireless body area network transmission
Device includes：First acquisition unit 61, the first computing unit 62 and presetting module 63.
First acquisition unit 61, it is public for obtaining Preset Transfer layer iterative formula, default media access control MAC layer iteration
Formula and predetermined physical layer iterative formula.
First computing unit 62, for using Preset Transfer layer iterative formula, the default MAC layer iteration public respectively
Formula and predetermined physical layer iterative formula, calculate transport layer rate of convergence value, the MAC layer of current ink sending node respectively
Access probability value and physical layer convergence sending power consumption value are restrained, so that the current ink node restrains speed using the transport layer
Rate value, MAC layer convergence access probability value and physical layer convergence sending power consumption value, carry out data transmission.
Presetting module 63, changes for the default generation Preset Transfer layer iterative formula, default media access control MAC layer
For formula and predetermined physical layer iterative formula.
Wherein, presetting module 63 includes：The computing unit 632 of second acquisition unit 631 and second.
Second acquisition unit 631, for obtaining the default constraint for maximizing object function and the maximization object function
Condition, the maximization object function includes two variables of network life and network utility, for calculating network effectiveness and net
The maximum of network life-span sum.
Second computing unit 632, for the constraint bar to the maximization object function and the maximization object function
Part is derived, and calculates Preset Transfer layer iterative formula, default MAC layer iterative formula and predetermined physical layer iterative formula.
The concrete structure of second computing unit 632 may refer to Fig. 7, and Fig. 7 is illustrated that one kind second that the application is provided
A kind of structural representation of computing unit, the second computing unit includes：First, which solves unit 71, resolving cell 72 and second, solves
Unit 73.
First solves unit 71, for by introducing congestion factor and Energy consumption factor, using Lagrange duality method pair
The maximization object function and the maximization bound for objective function are solved, and generate Lagrangian.
Resolving cell 72, for carrying out orthogonal decomposition to the Lagrangian, decomposition obtains three sub- prioritization schemes
Correspondence transport layer, MAC layer and physical layer are arrived respectively.
Second solves unit 73, the optimal value for solving each word prioritization scheme using gradient method, respectively obtains default
Transport layer iterative formula, default MAC layer iterative formula and predetermined physical layer iterative formula.
In said apparatus embodiment, the first computing unit 62 includes：3rd computing unit, the first determining unit, the 4th
Computing unit, the second determining unit, the 5th computing unit and the 3rd determining unit.
Wherein, the 3rd computing unit and the first determining unit cooperation, for calculating current ink sending node
Transport layer rate of convergence value.
3rd computing unit, for using Preset Transfer layer iterative formulaThe transmission rate value of current ink sending node is calculated, until the x's
(t+1) restrain.
First determining unit, for by the x's(t+1) restrain corresponding rate value and be used as current ink sending node
Rate of convergence value.
Wherein, the x's(t+1) it is transmission rate of the current ink sending node at (t+1) moment, the x's(t) it is
Current ink sending node is in the transmission rate of t, the κ3(t) positive step-length when for t iteration；Represent value
Scope isx's=logxs, τ 'ij=log τij,The λlFor congestion factor, the λl's
Currency isThe μl(t) according to formulaCalculating is obtained, the μlFor energy factors, wherein, κ1, κ2For
Positive step-length during t iteration, []+It is arithmetic number to represent domain value range, to ensure work factor (λ, μ) non-negative.
4th computing unit and the second determining unit cooperation, the MAC for calculating current ink sending node are received
Hold back access probability value.
4th computing unit, for using the default MAC layer iterative formulaCalculate and work as
The access link of preceding link sending node competes successful probability, until the PiConvergence.
Second determining unit, for by the PiCorresponding access link competes successful probability and is used as current chain during convergence
The convergence access probability value of road sending node.
It is describedLinterference(l) interfered with link l transmission
Link, ωiFor priority factors, wherein ωiMeet
5th computing unit and the 3rd determining unit cooperation, the physical layer for calculating current ink sending node
Restrain sending power consumption value.
5th computing unit, for using predetermined physical layer iterative formulaCurrent ink is calculated to send
The physical layer sending power consumption value of node, until the ei(t+1) restrain.
3rd determining unit, for by the ei(t+1) corresponding sending power consumption value is sent as current ink when restraining
The physical layer convergence sending power consumption value of node.
Wherein, the ei(t+1) for node i in the node physical layer sending power consumption at (t+1) moment, the ei(t) it is node
I is in the node physical layer sending power consumption of t, κ4(t) the positive step-length for being for t iteration,Represent span asN is the transmission delivery number of times obtained by node is calculated with mean power,The Shighest_UPFor
The set of service priority highest node.
It is describedFor calculating current ink
When sending node is service priority highest node, the physical layer sending power consumption value of current ink sending node；
It is describedFor calculating in current ink sending node
During non-traffic highest priority node, the physical layer sending power consumption value of current ink sending node.
It should be noted that each embodiment in this specification is described by the way of progressive, each embodiment weight
Point explanation be all between difference with other embodiment, each embodiment identical similar part mutually referring to.
For device class embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is joined
See the part explanation of embodiment of the method.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include that
A little key elements, but also other key elements including being not expressly set out, or also include be this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there is other identical element in the process including the key element, method, article or equipment.
For convenience of description, it is divided into various units during description apparatus above with function to describe respectively.Certainly, this is being implemented
The function of each unit can be realized in same or multiple softwares and/or hardware during application.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can
Realized by the mode of software plus required general hardware platform.Understood based on such, the technical scheme essence of the application
On the part that is contributed in other words to prior art can be embodied in the form of software product, the computer software product
It can be stored in storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are to cause a computer equipment
(can be personal computer, server, or network equipment etc.) performs some of each embodiment of the application or embodiment
Method described in part.
A kind of wireless body area network transmission method provided herein and device are described in detail above, herein
Apply specific case to be set forth the principle and embodiment of the application, the explanation of above example is only intended to help
Understand the present processes and its core concept；Simultaneously for those of ordinary skill in the art, according to the thought of the application,
It will change in specific embodiments and applications, in summary, this specification content should not be construed as to this
The limitation of application.
Claims (11)
1. a kind of wireless body area network transmission method, it is characterised in that including：
Obtain Preset Transfer layer iterative formula, default media access control MAC layer iterative formula and predetermined physical layer iterative formula；
Respectively using Preset Transfer layer iterative formula, the default MAC layer iterative formula and the predetermined physical stacking generation
Formula, calculates the transport layer rate of convergence value, MAC layer convergence access probability value and physical layer of current ink sending node respectively
Sending power consumption value is restrained, so that the current ink node uses the transport layer rate of convergence value, MAC layer convergence access probability
Value and physical layer convergence sending power consumption value, carry out data transmission；
The Preset Transfer layer iterative formula, default media access control MAC layer iterative formula and predetermined physical layer iterative formula
Default generating process, including：
Obtain default maximize in object function and the maximization bound for objective function, the maximization object function
Including two variables of network life and network utility, for calculating network effectiveness and the maximum of network life sum；
The maximization object function and the maximization bound for objective function are derived, Preset Transfer is calculated
Layer iterative formula, default MAC layer iterative formula and predetermined physical layer iterative formula.
2. according to the method described in claim 1, it is characterised in that the maximization object function is：The γ is systematic parameter, and less than 1, the Us(xs) it is network utility letter
Number, the TnetIt is described for network lifeFor summing function, the s is the link sending node on link (i, j), the chain
I in road (i, j) is link sending node, and j is destination node；
The constraints includes：Xs≤cij (e) τ ij and
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The xsFor the transmission rate of any one link sending node on link (i, j), the cij(e) it is link (i, j)
Link capability, the link (i, j) jumps connecting link, the τ for the one of link sending node i to destination node jijFor link
The probability of (i, j) Successful transmissions, it is describedFor link sending node i transmission per unit of time average power consumptions, the E0Sent for link
The primary power of node i, the ti=1/Ti, the TiFor the life span of service priority highest node in link (i, j),
The min TiEqual to Tnet, the PiSuccessful probability, the P are competed for the access link of node ikFor node k access link
Compete successful probability, Ninterference(ij) it is the set of the point interfered in link (i, j) transmitting procedure, Π multiplies to connect
Computing, the T is symbol period, and e is the vector form that link (i, j) transmits power consumption, constant K=(- φ1/log(φ2BER)),
Wherein φ1And φ2Related with modulation system, BER is the bit error rate, and link l signal to noise ratio is defined asWherein, eijFor transmission power consumption scalar form, GkiFor path loss, nijFor noise,
GijFor the path gain on link l, if sending information simultaneously in the absence of excessive neighbor node, KSIR is much larger than 1, in high noise
Than in region, cijIt is approximately equal to log (KSIRij(e)), the l represents link (i, j).
3. method according to claim 2, it is characterised in that to the maximization object function and the maximization target
The constraints of function is derived, and calculates Preset Transfer layer iterative formula, default MAC layer iterative formula and predetermined physical layer
The process of iterative formula, including：
By introducing congestion factor and Energy consumption factor, object function is maximized and described to described using Lagrange duality method
Maximize bound for objective function to be solved, generate Lagrangian；
Orthogonal decomposition is carried out to the Lagrangian, decomposition obtains three sub- prioritization schemes and arrives correspondence transport layer, MAC respectively
Layer and physical layer；
The optimal value of every sub- prioritization scheme is solved using gradient method, Preset Transfer layer iterative formula, default MAC layer is respectively obtained
Iterative formula and predetermined physical layer iterative formula.
4. the method according to claim 1-3 any one, it is characterised in that public using Preset Transfer stacking generation
Formula, calculates the process of the transport layer rate of convergence value of current ink sending node, including：
Use Preset Transfer layer iterative formulaCalculate current ink
The transmission rate value of sending node, until the x's(t+1) restrain；
By the x's(t+1) corresponding rate value is restrained as the rate of convergence value of current ink sending node；
Wherein, the corresponding rate value of the x's (t+1) is transmission rate of the current ink sending node at (t+1) moment, the x's
(t) corresponding rate value is transmission rate of the current ink sending node in t, the positive step when κ 3 (t) is t iteration
It is long；Represent span is as x ' s=log xs, τ ' ij=log τ ij, the λ l
Congestion factor, the currency of the λ l is
The μ l (t) are according to formula
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Calculating is obtained, and the μ l are energy
The factor, wherein, κ 1, positive step-length when κ 2 is the t times iteration, []+represent domain value range is arithmetic number, with ensure the factor (λ,
μ) non-negative.
5. the method according to claim 1-3 any one, it is characterised in that use the default MAC layer iterative formula,
The MAC for calculating current ink sending node restrains the process of access probability value, including：It is public using the default MAC layer iteration
FormulaThe access link for calculating current ink sending node competes successful probability, until described
PiConvergence；
By the PiCorresponding access link competes successful probability and accessed generally as the convergence of current ink sending node during convergence
Rate value；
It is describedLinterference(l) it is to transmit the link interfered with link l,
ωiFor priority factors, wherein ωiMeet
6. the method according to claim 1-3 any one, it is characterised in that public using predetermined physical stacking generation
Formula, calculates the process of the physical layer convergence sending power consumption value of current ink sending node, including：
Use predetermined physical layer iterative formula
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By the ei(t+1) corresponding sending power consumption value sends work(as the physical layer convergence of current ink sending node when restraining
Consumption value；
Wherein, the ei(t+1) for node i in the node physical layer sending power consumption at (t+1) moment, the ei(t) for node i in t
The node physical layer sending power consumption at moment, κ4(t) the positive step-length for being for t iteration,Represent span asN is the transmission delivery number of times obtained by node is calculated with mean power,The Shighest_UPFor
The set of service priority highest node；
It is described
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When node is service priority highest node, the physical layer sending power consumption value of current ink sending node；
It is described
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7. a kind of wireless body area network transmitting device, it is characterised in that including：
First acquisition unit, for obtaining Preset Transfer layer iterative formula, presetting media access control MAC layer iterative formula and pre-
If physical layer iterative formula；
First computing unit, for using Preset Transfer layer iterative formula, the default MAC layer iterative formula and institute respectively
Predetermined physical layer iterative formula is stated, the transport layer rate of convergence value of current ink sending node, MAC layer convergence are calculated respectively and is connect
Enter probable value and physical layer convergence sending power consumption value so that the current ink node using the transport layer rate of convergence value,
MAC layer restrains access probability value and physical layer convergence sending power consumption value, carries out data transmission；
Presetting module, for the default generation Preset Transfer layer iterative formula, default media access control MAC layer iterative formula
And predetermined physical layer iterative formula；
The presetting module includes：Second acquisition unit, for obtaining default maximization object function and the maximization target
The constraints of function, the maximization object function includes two variables of network life and network utility, for calculating net
The maximum of network effectiveness and network life sum；
Second computing unit, for being pushed away to the maximization object function and the maximization bound for objective function
Lead, calculate Preset Transfer layer iterative formula, default MAC layer iterative formula and predetermined physical layer iterative formula.
8. device according to claim 7, it is characterised in that the second computing unit includes：
First solves unit, for by introducing congestion factor and Energy consumption factor, using Lagrange duality method to it is described most
Bigization object function and the maximization bound for objective function are solved, and generate Lagrangian；
Resolving cell, for carrying out orthogonal decomposition to the Lagrangian, decomposition obtains three sub- prioritization schemes and arrived respectively
Correspondence transport layer, MAC layer and physical layer；
Second solves unit, the optimal value for solving each word prioritization scheme using gradient method, respectively obtains Preset Transfer layer
Iterative formula, default MAC layer iterative formula and predetermined physical layer iterative formula.
9. the device according to claim 7 or 8, it is characterised in that first computing unit includes：
3rd computing unit, for using Preset Transfer layer iterative formulaThe transmission rate value of current ink sending node is calculated, until the x's
(t+1) restrain；
First determining unit, for by the x's(t+1) corresponding rate value is restrained as the convergence of current ink sending node
Rate value；
Wherein, the corresponding speed of the x's (t+1) is transmission rate of the current ink sending node at (t+1) moment, the x's
(t) corresponding speed is transmission rate of the current ink sending node in t, the positive step when κ 3 (t) is t iteration
It is long；Represent span is as x ' s=log xs, τ ' ij=log τ ij, the λ l
Congestion factor, the currency of the λ l is institute
μ l (t) are stated according to formula
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10. the device according to claim 7 or 8, it is characterised in that first computing unit includes：
4th computing unit, for using the default MAC layer iterative formulaCalculate current chain
The access link of road sending node competes successful probability, until the PiConvergence；
Second determining unit, for by the PiCorresponding access link competes successful probability and sent out as current ink during convergence
Send the convergence access probability value of node；
It is describedLinterference(l) it is to transmit the link interfered with link l,
ωiFor priority factors, wherein ωiMeet
11. the device according to claim 7 or 8, it is characterised in that first computing unit includes：
5th computing unit, for using predetermined physical layer iterative formula
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Current ink is calculated to send
The physical layer sending power consumption value of node, until the ei (t+1) convergences；
3rd determining unit, for by the ei(t+1) corresponding sending power consumption value is used as current ink sending node when restraining
Physical layer convergence sending power consumption value；
Wherein, the ei (t+1) is node physical layer sending power consumption of the node i at (t+1) moment, and the ei (t) is node i in t
The node physical layer sending power consumption at moment, κ 4 (t) is the t iteration positive step-length that is, and it is transmission delivery number of times obtained by node is calculated with mean power to represent span as 4 n,
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5
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102316594A (en) * | 2011-09-23 | 2012-01-11 | 北京邮电大学 | Method for cross layer resource distribution and grouped dispatch in cognitive wireless network |
| CN103929490A (en) * | 2014-04-28 | 2014-07-16 | 中国科学院微电子研究所 | Data transmission method for body area network system |
| CN104125098A (en) * | 2014-08-04 | 2014-10-29 | 中国科学院微电子研究所 | Adaptive adjustment method and system for media access control |
| CN104486641A (en) * | 2014-11-20 | 2015-04-01 | 清华大学 | Multi-service broadcasting single-frequency network optimizing method based on superposition codes |
| CN104796993A (en) * | 2015-04-21 | 2015-07-22 | 西安交通大学 | Stackelberg game-based cross-layer resource allocation method of heterogeneous network |
-
2016
- 2016-03-01 CN CN201610115437.9A patent/CN107148029A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102316594A (en) * | 2011-09-23 | 2012-01-11 | 北京邮电大学 | Method for cross layer resource distribution and grouped dispatch in cognitive wireless network |
| CN103929490A (en) * | 2014-04-28 | 2014-07-16 | 中国科学院微电子研究所 | Data transmission method for body area network system |
| CN104125098A (en) * | 2014-08-04 | 2014-10-29 | 中国科学院微电子研究所 | Adaptive adjustment method and system for media access control |
| CN104486641A (en) * | 2014-11-20 | 2015-04-01 | 清华大学 | Multi-service broadcasting single-frequency network optimizing method based on superposition codes |
| CN104796993A (en) * | 2015-04-21 | 2015-07-22 | 西安交通大学 | Stackelberg game-based cross-layer resource allocation method of heterogeneous network |
Non-Patent Citations (1)
| Title |
|---|
| 王亚丽: "无线传感器网络流分析与流控制技术研究", 《中国博士学位论文库》 * |
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