CN106850008A - A kind of wireless energy drives transmission method and device - Google Patents
A kind of wireless energy drives transmission method and device Download PDFInfo
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- CN106850008A CN106850008A CN201710071088.XA CN201710071088A CN106850008A CN 106850008 A CN106850008 A CN 106850008A CN 201710071088 A CN201710071088 A CN 201710071088A CN 106850008 A CN106850008 A CN 106850008A
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- H—ELECTRICITY
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- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
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- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
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Abstract
Transmission method and device are driven the invention provides a kind of wireless energy, the method is applied to wireless energy and drives communication network, wireless energy to include via node and at least two communication sets in driving communication network, and the method includes：The communication that selection at least one is used for collaboration communication is right, and communication is to comprising a first kind communication set and an Equations of The Second Kind communication set, being equipped with least two antennas on the first source node in first kind communication set；It is right for each communication, each optimal beam form factor equipped with least two nodes of antenna of communication centering and the optimal transmission time in each transmission stage are calculated, and control the mixed transport communicated to carrying out energy and message.Based on method disclosed by the invention, realize communication centering each source node and successfully transmit to respective destination node message, also, due to being transmitted according to optimal beam form factor and optimal transmission time, therefore reach maximum weighted and rate communication.
Description
Technical field
The present invention relates to power control techniques field, more specifically to a kind of wireless energy drive transmission method and
Device.
Background technology
Wireless energy drive communication network (Wireless Powered Communication Networks, WPCN) be
The communication that wireless information transfer technology separate in traditional wireless network and wireless energy transfer system fusion are got up
System, is used to realize the mixed transport of energy and message.
There are multiple communication sets being made up of source node and destination node in wireless energy drives communication network, also,
Each communication set is independent communication.Energy and the state of channel according to source node in communication set, can be divided into energy by communication set
But amount can meet the demand first kind communication set without authorization channel for sending a message to destination node, and, source node has
Still energy can not meet the Equations of The Second Kind communication set for sending a message to destination node demand to authorization channel.But, above-mentioned two class
Source node in communication set successfully can not be transmitted to respective destination node message.
The content of the invention
In view of this, the present invention provides a kind of wireless energy and drives transmission method and device, to solve existing wireless energy
First kind communication set and Equations of The Second Kind communication set successfully can not be transmitted to respective destination node message in driving communication network
Problem.Technical scheme is as follows：
A kind of wireless energy drives transmission method, is applied to wireless energy and drives communication network, the wireless energy to drive
Via node and at least two communication sets are included in communication network, methods described includes：
Selection at least one is right for the communication of collaboration communication from communication set each described, and the communication is to comprising one
First kind communication set and an Equations of The Second Kind communication set, are equipped with least two days on the first source node in the first kind communication set
Line；
For communicating right each described, each is optimal equipped with least two nodes of antenna to calculate the communication centering
Beam forming coefficients and the optimal transmission time in each transmission stage, the node includes first source node, described
Second source node of via node or the Equations of The Second Kind communication set；
For communicating right each described, according to corresponding each described optimal beam form factor and each most
Excellent transmission time controls the mixed transport communicated to carrying out energy and message.
Preferably, it is described to calculate each optimal beams shaping system equipped with least two nodes of antenna of the communication centering
Number and the optimal transmission time in each transmission stage, including：
The first kind communication set and each self-corresponding total achievable rate formula of the Equations of The Second Kind communication set are generated, it is described total
Transmission time parameter comprising beam forming parameter and each transmission stage in achievable rate formula；
According to each self-corresponding total achievable rate formula of the first kind communication set and the Equations of The Second Kind communication set with
And weighted value, generate it is described communication to total achievable rate formula；
Build it is described communication to corresponding first Mathematical Modeling of total achievable rate formula；
Equivalence variable conversion is carried out to the beam forming coefficients in first Mathematical Modeling, the second Mathematical Modeling is obtained；
Variable replacement is carried out to beam forming coefficients in second Mathematical Modeling, the 3rd Mathematical Modeling is obtained；
Convex optimization processing is carried out to the 3rd Mathematical Modeling, the 4th Mathematical Modeling is obtained；
The globally optimal solution of the 4th Mathematical Modeling is calculated, and optimal beam shaping is obtained according to the globally optimal solution
Coefficient and the optimal transmission time in each transmission stage.
Preferably, it is described according to corresponding each described optimal beam form factor and each described optimal transmission time
The control mixed transport communicated to carrying out energy and message, including：
Optimal beam form factor and the optimal transmission time in the first transmission stage according to first source node, control
First source node sends the first directed message signal to the first destination node of the first kind communication set, meanwhile, will
Oriented energy signal is sent to the via node；
According to the antenna amount being equipped with second source node and the optimal transmission time in the second transmission stage, institute is controlled
The second source node is stated to send message signale to second destination node and the via node of the Equations of The Second Kind communication set；
The optimal transmission time based on the antenna amount being equipped with the via node and the 3rd transmission stage, control is described
Via node is sent to second destination node message signale using the oriented energy signal；
According to the 4th optimal transmission time for transmitting the stage, first source node is controlled to send out the second directed message signal
Deliver to first destination node.
Preferably, the optimal transmission that the stage is transmitted according to the antenna amount being equipped with second source node and second
Time, control second source node by message signale send to the Equations of The Second Kind communication set the second destination node and it is described in
After node, including：
Whether judge on second source node equipped with an antenna；
When an antenna is equipped with second source node, according to the optimal transmission time in the second transmission stage, control
Second source node by the first broadcast message signals send to the Equations of The Second Kind communication set the second destination node and it is described in
After node；
When at least two antennas are equipped with second source node, shaped according to the optimal beam of second source node
Coefficient and the optimal transmission time in the second transmission stage, second source node is controlled to send to institute the 3rd directed message signal
State second destination node and the via node of Equations of The Second Kind communication set.
Preferably, it is described based on the antenna amount being equipped with the via node and the 3rd transmission the stage optimal transmission when
Between, control the via node to send to second destination node message signale using the oriented energy signal,
Including：
Judge whether an antenna is installed on the via node；
When on the via node be equipped with an antenna when, the message signale decode obtain the second broadcast letter
Number, and according to the optimal transmission time in the 3rd transmission stage, control the via node to utilize the oriented energy signal by institute
The second broadcast singal is stated to send to second destination node；
When at least two antennas are equipped with the via node, the message signale decode obtain the 4th orientation
Message signale, and the optimal transmission time according to the 3rd transmission stage and the optimal beam form factor of the via node, control
The via node is made to send to the section of second mesh the 4th directed message signal using the oriented energy signal
Point.
A kind of wireless energy drives transmitting device, including：Communication is to choosing module, computing module and controlling transmission module；
The communication is used for the logical of collaboration communication to choosing module for choosing at least one from communication set each described
Letter is right, the communication to comprising a first kind communication set and an Equations of The Second Kind communication set, in the first kind communication set the
At least two antennas are housed on one source node；
The computing module, for for communicating right each described, each to be equipped with least two to calculate the communication centering
The optimal beam form factor of the node of root antenna and the optimal transmission time in each transmission stage, the node includes institute
State the second source node of the first source node, the via node or the Equations of The Second Kind communication set；
The controlling transmission module, for for communicating right each described, according to corresponding each described optimal beam
Communicated to the mixed transport for carrying out energy and message described in form factor and each described optimal transmission time control.
Preferably, the computing module includes：First formula generation unit, the second formula generation unit, Mathematical Modeling structure
Build unit, equivalence variable conversion unit, variable replacement unit, convex optimization unit and calculate acquiring unit；
The first formula generation unit is each right for generating the first kind communication set and the Equations of The Second Kind communication set
The total achievable rate formula answered, the transmission comprising beam forming parameter and each transmission stage in total achievable rate formula
Time parameter；
The second formula generation unit, for each right according to the first kind communication set and the Equations of The Second Kind communication set
The described total achievable rate formula and weighted value answered, generate it is described communication to total achievable rate formula；
The Mathematical Modeling construction unit, for build it is described communication to corresponding first mathematics of total achievable rate formula
Model；
The equivalence variable conversion unit, becomes for the beam forming coefficients in first Mathematical Modeling to be entered with row equivalent
Amount conversion, obtains the second Mathematical Modeling；
The variable replacement unit, for carrying out variable replacement to beam forming coefficients in second Mathematical Modeling,
Obtain the 3rd Mathematical Modeling；
The convex optimization unit, for carrying out convex optimization processing to the 3rd Mathematical Modeling, obtains the 4th Mathematical Modeling；
The calculating acquiring unit, the globally optimal solution for calculating the 4th Mathematical Modeling, and according to the overall situation
Optimal solution obtains optimal beam form factor and the optimal transmission time in each transmission stage.
Preferably, the controlling transmission module includes：First control unit, the second control unit, the 3rd control unit and
4th control unit；
First control unit, for the optimal beam form factor according to first source node and the first transmission rank
The optimal transmission time of section, first source node is controlled to send to the first kind communication set the first directed message signal
First destination node, meanwhile, oriented energy signal is sent to the via node；
Second control unit, for according to the antenna amount and the second transmission stage being equipped with second source node
The optimal transmission time, control second source node that message signale is sent the section of the second mesh to the Equations of The Second Kind communication set
Point and the via node；
3rd control unit, for transmitting the stage based on the antenna amount being equipped with the via node and the 3rd
The optimal transmission time, the via node is controlled to send to described second the message signale using the oriented energy signal
Destination node；
4th control unit, the optimal transmission time for transmitting the stage according to the 4th, controls the first source section
O'clock the second directed message signal is sent to first destination node.
Preferably, second control unit includes：First judgment sub-unit, the first control subelement and the second control
Unit；
First judgment sub-unit, for whether judging on second source node equipped with an antenna；
The first control subelement, for when an antenna is equipped with second source node, according to the second transmission
The optimal transmission time in stage, second source node is controlled to send to the Equations of The Second Kind communication set the first broadcast message signals
The second destination node and the via node；
The second control subelement, for when at least two antennas are equipped with second source node, according to described
The optimal beam form factor of the second source node and the optimal transmission time in the second transmission stage, control second source node will
3rd directed message signal is sent to second destination node and the via node of the Equations of The Second Kind communication set.
Preferably, the 3rd control unit includes：Second judgment sub-unit, the 3rd control subelement and the 4th control
Unit；
Second judgment sub-unit, for judging whether an antenna is provided with the via node；
The 3rd control subelement, for when an antenna is equipped with the via node, to the message signale
Decode and obtain the second broadcast singal, and according to the optimal transmission time in the 3rd transmission stage, control the via node profit
Second broadcast singal is sent to second destination node with the oriented energy signal；
The 4th control subelement, for when at least two antennas are equipped with the via node, to the message
Signal decode and obtains the 4th directed message signal, and the optimal transmission time according to the 3rd transmission stage and the relaying section
The optimal beam form factor of point, controls the via node to believe the 4th directed message using the oriented energy signal
Number send to second destination node.
Compared to prior art, what the present invention was realized has the beneficial effect that：
A kind of wireless energy that the above present invention is provided drives transmission method and device, and the method is applied to wireless energy drive
Dynamic communication network, wireless energy includes via node and at least two communication sets in driving communication network, by calculating what is chosen
Each communication is to corresponding each optimal beam form factor and the optimal transmission time in each transmission stage, and control communication is right
In each source node and via node complete the mixed transport of energy and information.
Based on method disclosed in the invention described above, realize communication centering each source node and successfully transmit to respective message
Destination node, also, due to being transmitted according to optimal beam form factor and optimal transmission time, therefore reach most greatly
Power and rate communication.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is that a kind of wireless energy drives transmission method flow chart disclosed in the embodiment of the present invention one；
Fig. 2 is that a kind of wireless energy drives transmission method partial process view disclosed in the embodiment of the present invention two；
Fig. 3 is that another wireless energy drives transmission method partial process view disclosed in the embodiment of the present invention two；
Fig. 4 is that another wireless energy drives transmission method partial process view disclosed in the embodiment of the present invention two；
Fig. 5 is that another wireless energy drives transmission method partial process view disclosed in the embodiment of the present invention two；
Fig. 6 is that a kind of wireless energy drives method and device for transmitting structural representation disclosed in the embodiment of the present invention three；
Fig. 7 is that a kind of wireless energy drives method and device for transmitting part-structure schematic diagram disclosed in the embodiment of the present invention four；
Fig. 8 is that another wireless energy drives method and device for transmitting part-structure to illustrate disclosed in the embodiment of the present invention four
Figure；
Fig. 9 is that another wireless energy drives method and device for transmitting part-structure to illustrate disclosed in the embodiment of the present invention four
Figure；
Figure 10 is that another wireless energy drives method and device for transmitting part-structure to illustrate disclosed in the embodiment of the present invention four
Figure.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, 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 protection of the invention.
Embodiment one
The embodiment of the present invention one discloses a kind of wireless energy and drives transmission method, and the method is applied to wireless energy driving
Communication network, wireless energy includes via node and at least two communication sets in driving communication network, and method includes：
S101, chosen from each communication set at least one be used for collaboration communication communication it is right, communication is to comprising one the
One class communication set and an Equations of The Second Kind communication set, are equipped with least two antennas on the first source node in first kind communication set；
During step S101 is performed, there are multiple communication sets in wireless energy in driving communication network, from all of
In communication set in selection first kind communication set and Equations of The Second Kind communication set, also, the first kind communication set chosen on the first source node
The antenna being equipped with is at least two, this guarantees energy transmission efficiency.
S102, right for each communication, each is equipped with least two optimal ripples of the node of antenna to calculate communication centering
Beam shaping coefficient and the optimal transmission time in each transmission stage, node includes the first source node, via node or second
Second source node of class communication set；
During step S102 is performed, because the antenna being equipped with the first source node in first kind communication set is at least
Two, therefore, the first source node correspond to an optimal beam form factor；But, because via node or Equations of The Second Kind are logical
The antenna being equipped with second source node of letter group may be one or at least two, so can be calculated according to actual conditions being equipped with
The via node of at least two antennas and the optimal beam form factor of the second source node, also, the transmission stage may be configured as four
It is individual, therefore, communication can be calculated to transmitting four optimal transmission times in stage at four.
S103, it is right for each communication, according to corresponding each optimal beam form factor and each optimal transmission
The mixed transport that time control communicates to carrying out energy and message.
A kind of wireless energy drives transmission method disclosed in the embodiment of the present invention, by calculating each communication chosen to right
Each optimal beam form factor for answering and the optimal transmission time in each transmission stage, control communication centering each source node
With the mixed transport that via node completes energy and information.Based on method disclosed in the invention described above, communication centering is realized each
Individual source node is successfully transmitted to respective destination node message, also, due to according to optimal beam form factor and optimal biography
The defeated time is transmitted, therefore reaches maximum weighted and rate communication.
Embodiment two
A kind of wireless energy provided with reference to the embodiments of the present invention one drives transmission method, step as shown in Figure 1
Each optimal beam form factor equipped with least two nodes of antenna of communication centering is calculated in S102 and in each transmission
The specific implementation procedure of the optimal transmission time in stage, as shown in Fig. 2 comprising the following steps：
S201, generates first kind communication set and each self-corresponding total achievable rate formula of Equations of The Second Kind communication set, total up to speed
Transmission time parameter comprising beam forming parameter and each transmission stage in rate formula；
During step S201 is performed, it is assumed that the first source node is equipped with three antennas, the second source node and relaying are saved
Point is respectively arranged with an antenna, and communication channel is bulk nanometer materials；Also, channel parameter keeps constant in block T fading period, often
The channel parameter Rayleigh distributed of individual T block fading period, block T fading period is divided into 4 transmission stages, and will be corresponding
Four transmission time parameters are defined as τ1,τ2,τ3,τ4, hijK () is the letter between k-th piece of fading period interior nodes i and node j
Road parameter,It is additive white Gaussian noise (the Additive White in k-th piece of fading period
Gaussian Noise, AWGN),dijIt is the distance between node i and node j, κ is path loss
Exponential factor；
For statement is convenient, block T fading period is normalized, thenτi>=0, and be transmission time parametric distribution
VectorThen have：
Wherein, 1 expression element is 1 column vector；
According to the signal and the 4th that the first transmission source node of stage first sends to via node and the first destination node
The signal that the source node of transmission stage first sends to the first destination node, can generate first kind communication set according to equation below (2)
Corresponding total achievable rate
Wherein, τ1And τ4The transmission time in the respectively first transmission stage and the transmission time in the 4th transmission stage, w is
Energy beam shaping vector,It is the transimission power of the first source node, also, Beam forming parameter vectorAnd w meets following condition：
According to the signal and the 4th that the second transmission source node of stage second sends to via node and the second destination node
The signal that transmission stage via node sends to the second destination node, can generate Equations of The Second Kind communication set pair according to equation below (4)
The total achievable rate answered
Wherein, τ2And τ3The transmission time in the respectively second transmission stage and the transmission time in the 3rd transmission stage,
It is the transimission power of the second source node, PRIt is the transimission power of via node, also,
In addition, the energy τ that via node is received3PRMeet following condition：
Wherein, energy transformation ratio η ∈ (0,1],
S202, according to each self-corresponding total achievable rate formula of first kind communication set and Equations of The Second Kind communication set and weight
Value, generation communication to total achievable rate formula；
With reference to the corresponding total achievable rate of first kind communication set obtained in step S201 implementation proceduresIt is logical with Equations of The Second Kind
The corresponding total achievable rate of letter groupGeneration communication to total achievable rate Rwsum：
Wherein, α1It is the corresponding total achievable rate of first kind communication setCorresponding weighted value, α2It is Equations of The Second Kind communication set
Corresponding total achievable rateCorresponding weighted value.
S203, build communication to corresponding first Mathematical Modeling of total achievable rate formula；
During step S203 is performed, it is assumed that the targeted rate of communication set i isWeight is αi,
Then the communication set should reach weighted sum rate maximization on the basis of following condition is met：
Therefore, communication to total achievable rate can be modeled as：
Beam forming coefficients in first Mathematical Modeling are carried out equivalence variable conversion by S204, obtain the second Mathematical Modeling；
During step S204 is performed, because formula (2) and formula (4) are that, on τ, w is nonlinear, therefore is
Non-convex；, on τ, w is also non-convex, therefore the first Mathematical Modeling P for formula (3) and formula (7)1It is not convex problem, it is impossible to use
Existing solution instrument direct solution.
Also, during w always appears in formula (2), formula (3) and formula (5) in the form of the quadratic term, therefore, definition becomes
AmountThen above-mentioned formula (2), formula (3) and formula (5) can be expressed as again after carrying out equivalence variable conversion：
In addition, to ensure that W and w can be corresponded, W must is fulfilled for following condition：
Rank (W)=1 (12)
Constraints according to shown by formula (11) and formula (12), can be by the first Mathematical Modeling P1Can equivalence be converted into
Second Mathematical Modeling P2：
Beam forming coefficients in second Mathematical Modeling are carried out variable replacement by S205, obtain the 3rd Mathematical Modeling；
During step S205 is performed, due to the second Mathematical Modeling P2On τ, w is not still convex, but, such as
Fruit removes constraint formulations (12), P when giving τ2It is convex, P during equally given W on W2It is convex on τ.Therefore, when removing about
During beam formula (12), the second Mathematical Modeling P2Optimal value can be solved by traditional selection iterative method, but, remove about
Cannot ensure that gained optimal solution is globally optimal solution after beam formula (20)；
Therefore, for guarantee obtains the second Mathematical Modeling P2Globally optimal solution, to the second Mathematical Modeling P2Middle beam forming system
Several carries out variable replacement, and first-selection defines matrix variables V=τ1W,According to formula (11) and formula (12), then
Have：
Rank (V)=1 (14)
By that by matrix variables V substitutions formula (8) and formula (9), can obtain：
Secondly, φ is made1=τ3PR, then can be obtained according to formula (4) and formula (10)：
By above-mentioned variable replacement, the second Mathematical Modeling P2Can equivalence be converted into the 3rd Mathematical Modeling P3：
S206, convex optimization processing is carried out to the 3rd Mathematical Modeling, obtains the 4th Mathematical Modeling；
During step S206 is performed, the 3rd Mathematical Modeling P3Object function be concave function, except constraint formulations
(14) all of constraint formulations are convex set outward, so can be by Semi- discounting for constraint formulations (14)
Definite Relaxation (SDR) are to the 3rd Mathematical Modeling P3Convex optimization processing is carried out, the 4th Mathematical Modeling P is obtained4：
S207, calculate the 4th Mathematical Modeling globally optimal solution, and according to the globally optimal solution obtain optimal beam into
Shape coefficient and the optimal transmission time in each transmission stage；
During step S207 is performed, due to the 4th Mathematical Modeling P4It is the convex optimization problem of standard, its optimal solutionCan be by existing solution instrument direct solution；Also, only work as rank (V*During)=1, P4Optimal solutionGlobally optimal solution is only, therefore, it can theoretically derive proof, P4It is constantly present one and meets rank (V*)=
1 optimal solutionPass throughFormer first Mathematical Modeling P can be readily attained1Globally optimal solution [τ*,
w*]。
A kind of wireless energy drives transmission method disclosed in the embodiment of the present invention, by calculating each communication chosen to right
Each optimal beam form factor for answering and the optimal transmission time in each transmission stage, control communication centering each source node
With the mixed transport that via node completes energy and information.Based on method disclosed in the invention described above, communication centering is realized each
Individual source node is successfully transmitted to respective destination node message, also, due to according to optimal beam form factor and optimal biography
The defeated time is transmitted, therefore reaches maximum weighted and rate communication.
A kind of wireless energy provided with reference to the embodiments of the present invention one drives transmission method, step as shown in Figure 1
Communicated to carrying out energy according to corresponding each optimal beam form factor and each optimal transmission time control in S103
The specific implementation procedure of the mixed transport of amount and message, as shown in figure 3, comprising the following steps：
S301, optimal beam form factor and the optimal transmission time in the first transmission stage according to the first source node, control
The first source node is made to send the first directed message signal to the first destination node of first kind communication set, meanwhile, by directional energy
Amount signal is sent to via node；
During step S301 is performed, it is assumed that the first source node is equipped with three antennas, the second source node and relaying are saved
Point is respectively arranged with an antenna, and communication channel is bulk nanometer materials；Also, channel parameter keeps constant in block T fading period, often
The channel parameter Rayleigh distributed of individual T block fading period, block T fading period is divided into 4 transmission stages τ1,τ2,τ3,τ4, hij
K () is the channel parameter between k-th piece of fading period interior nodes i and node j,It is k-th piece of decline
Additive white Gaussian noise (Additive White Gaussian Noise, AWGN) in cycle,
dijIt is the distance between node i and node j, κ is the path loss index factor；
For statement is convenient, block T fading period is normalized, thenτi>=0, and be transmission time parametric distribution
VectorThen have：Wherein, 1 is column vector that element is 1；
Transmitted the stage first, the first source node of control sends the first directed message signal to the of first kind communication set
One destination node, oriented energy signal is sent to via node, then,
The first directed message signal that first destination node is received is：
The oriented energy signal that via node is received is：
Wherein,Beam forming parameter vector For the first source node is transmitted
Unit energy signal, also,
S302, according to the antenna amount being equipped with the second source node and the optimal transmission time in the second transmission stage, control
Second source node sends message signale to second destination node and via node of Equations of The Second Kind communication set；
Specifically, according to the antenna amount being equipped with the second source node and the optimal biography in the second transmission stage in step S302
Defeated time, the second source node of control sends message signale to second destination node and the tool of via node of Equations of The Second Kind communication set
Body implementation procedure, as shown in figure 4, comprising the following steps：
Whether S401, judge on the second source node equipped with an antenna；
S402, when an antenna is equipped with the second source node, according to the optimal transmission time in the second transmission stage, control
Second source node sends the first broadcast message signals to second destination node and via node of Equations of The Second Kind communication set；
During step S402 is performed, transmitted the stage second, the second source node of control believes the first broadcast message
Number simultaneously send to Equations of The Second Kind communication set the second destination node and via node, then,
The first broadcast message signals that second destination node is received are：
The first broadcast message signals that via node is received are：
Wherein,It is the transimission power of the second source node,It is the unit energy signal of the second source node transmission, and
And,
S403, when at least two antennas are equipped with the second source node, according to the optimal beam shaping system of the second source node
Number and the optimal transmission time in the second transmission stage, the 3rd directed message signal is sent to Equations of The Second Kind and led to by the second source node of control
Second destination node and via node of letter group；
During step S403 is performed, transmitted the stage second, the second source node of control believes the 3rd directed message
Number simultaneously send to Equations of The Second Kind communication set the second destination node and via node, then,
The 3rd directed message signal that second destination node is received is：
The 3rd directed message signal that via node is received is：
Wherein,Beam forming parameter vectorFor the second source node is passed
Defeated unit energy signal, also,
S303, the optimal transmission time based on the antenna amount being equipped with via node and the 3rd transmission stage, in control
Message signale is sent to the second destination node using oriented energy signal after node；
During step S303 is performed, based on the antenna amount being equipped with via node and the 3rd transmission stage most
Excellent transmission time, control via node is sent message signale to the section of the second mesh using the energy collected in oriented energy signal
Point；
Specifically, the optimal transmission based on the antenna amount being equipped with via node and the 3rd transmission stage in step S303
Time, control via node is sent message signale to the specific implementation procedure of the second destination node using oriented energy signal,
As shown in figure 5, comprising the following steps：
S501, judges whether an antenna is provided with via node；
S502, when an antenna is equipped with via node, to message signale decode and obtains the second broadcast singal, and
According to the optimal transmission time in the 3rd transmission stage, control via node is sent the second broadcast singal using oriented energy signal
To the second destination node；
During step S502 is performed, transmitted the stage the 3rd, control via node will using oriented energy signal
Second broadcast singal is sent to the second destination node, then,
The second broadcast singal that second destination node is received is：
Wherein, PRIt is the transimission power of via node, xRK () is the unit energy signal of via node transmission, also, | xR
(k)|2=1.
S503, when at least two antennas are equipped with via node, to message signale decode and obtains the 4th orientation and disappear
Information signal, and the optimal transmission time according to the 3rd transmission stage and the optimal beam form factor of via node, control relaying
Node is sent to the second destination node the 4th directed message signal using oriented energy signal；
During step S503 is performed, transmitted the stage the 3rd, control via node will using oriented energy signal
4th directed message signal is sent to the second destination node, then,
The 4th directed message signal that second destination node is received is：
Wherein,Beam forming parameter vectorxRK () is the unit of via node transmission
Energy signal, also, | xR(k)|2=1.
S304, according to the 4th optimal transmission time for transmitting the stage, controls the first source node by the second directed message signal
Send to the first destination node.
A kind of wireless energy drives transmission method disclosed in the embodiment of the present invention, by calculating each communication chosen to right
Each optimal beam form factor for answering and the optimal transmission time in each transmission stage, control communication centering each source node
With the mixed transport that via node completes energy and information.Based on method disclosed in the invention described above, communication centering is realized each
Individual source node is successfully transmitted to respective destination node message, also, due to according to optimal beam form factor and optimal biography
The defeated time is transmitted, therefore reaches maximum weighted and rate communication.
Embodiment three
The wireless energy provided based on each embodiment of the invention described above drives transmission method, and the embodiment of the present invention three is then corresponded to
It is open to perform the device that above-mentioned wireless energy drives transmission method, structural representation as shown in fig. 6, wireless energy drives transmission dress
Put 100, including：Communication is to choosing module 101, computing module 102 and controlling transmission module 103；
Communication is right for the communication of collaboration communication for choosing at least one from each communication set to choosing module 101,
Communication on the first source node in first kind communication set to comprising a first kind communication set and an Equations of The Second Kind communication set, being equipped with
At least two antennas；
Computing module 102, for right for each communication, each is equipped with least two sections of antenna to calculate communication centering
The optimal beam form factor of point and the optimal transmission time in each transmission stage, node include the first source node, relaying
Second source node of node or Equations of The Second Kind communication set；
Controlling transmission module 103, for right for each communication, according to corresponding each optimal beam form factor with
And each optimal transmission time control communicates the mixed transport to carrying out energy and message.
A kind of wireless energy drives transmitting device disclosed in the embodiment of the present invention, by calculating each communication chosen to right
Each optimal beam form factor for answering and the optimal transmission time in each transmission stage, control communication centering each source node
With the mixed transport that via node completes energy and information.Based on device disclosed in the invention described above, communication centering is realized each
Individual source node is successfully transmitted to respective destination node message, also, due to according to optimal beam form factor and optimal biography
The defeated time is transmitted, therefore reaches maximum weighted and rate communication.
Example IV
The wireless energy provided with reference to the embodiments of the present invention three drives transmitting device, calculating mould as illustrated in FIG. 6
Block 102, structural representation as shown in fig. 7, comprises：First formula generation unit 201, the second formula generation unit 202, mathematical modulo
Type construction unit 203, equivalence variable conversion unit 204, variable replacement unit 205, convex optimization unit 206 and calculating acquiring unit
207；
First formula generation unit 201, for generating first kind communication set and Equations of The Second Kind communication set is each self-corresponding always may be used
Up to rate equation, the transmission time parameter comprising beam forming parameter and each transmission stage in total achievable rate formula；
Second formula generation unit 202, for self-corresponding always may be used according to first kind communication set and Equations of The Second Kind communication set are each
Up to rate equation and weighted value, generation communication to total achievable rate formula；
Mathematical Modeling construction unit 203, for build communication to corresponding first Mathematical Modeling of total achievable rate formula；
Equivalence variable conversion unit 204, turns for the beam forming coefficients in the first Mathematical Modeling to be carried out with equivalence variable
Change, obtain the second Mathematical Modeling；
Variable replacement unit 205, for carrying out variable replacement to beam forming coefficients in the second Mathematical Modeling, obtains
Three Mathematical Modelings；
Convex optimization unit 206, for carrying out convex optimization processing to the 3rd Mathematical Modeling, obtains the 4th Mathematical Modeling；
Acquiring unit 207 is calculated, the globally optimal solution for calculating the 4th Mathematical Modeling, and obtained according to globally optimal solution
Optimal beam form factor and the optimal transmission time in each transmission stage.
A kind of wireless energy drives transmitting device disclosed in the embodiment of the present invention, by calculating each communication chosen to right
Each optimal beam form factor for answering and the optimal transmission time in each transmission stage, control communication centering each source node
With the mixed transport that via node completes energy and information.Based on device disclosed in the invention described above, communication centering is realized each
Individual source node is successfully transmitted to respective destination node message, also, due to according to optimal beam form factor and optimal biography
The defeated time is transmitted, therefore reaches maximum weighted and rate communication.
The wireless energy provided with reference to the embodiments of the present invention three drives transmitting device, and control as illustrated in FIG. 6 is passed
Defeated module 103, structural representation as shown in figure 8, including：First control unit 301, the control of the second control unit the 302, the 3rd are single
The control unit 304 of unit 303 and the 4th；
First control unit 301, for transmitting the stage according to the optimal beam form factor of the first source node and first
Optimal transmission time, the first source node of control sends the first directed message signal to the section of the first mesh of first kind communication set
Point, meanwhile, oriented energy signal is sent to via node；
Second control unit 302, for transmitting the stage most according to the antenna amount being equipped with the second source node and second
Excellent transmission time, the second source node of control saves the second destination node and relaying that message signale is sent to Equations of The Second Kind communication set
Point；
3rd control unit 303, for transmitting the optimal of stage based on the antenna amount being equipped with via node and the 3rd
Transmission time, control via node is sent to the second destination node message signale using oriented energy signal；
4th control unit 304, the optimal transmission time for transmitting the stage according to the 4th, the first source node of control is by the
Two directed message signals are sent to first destination node.
Specifically, the second control unit 302, structural representation as shown in figure 9, including：First judgment sub-unit 401,
The one control control subelement 403 of subelement 402 and second；
First judgment sub-unit 401, for whether judging on the second source node equipped with an antenna；
First control subelement 402, for when an antenna is equipped with the second source node, according to the second transmission stage
Optimal transmission time, the second source node of control sends the first broadcast message signals to the second destination node of Equations of The Second Kind communication set
And via node；
Second control subelement 403, for when at least two antennas are equipped with the second source node, according to the second source node
Optimal beam form factor and second transmission the stage the optimal transmission time, control the second source node the 3rd directed message is believed
Number send to Equations of The Second Kind communication set the second destination node and via node.
Specifically, the 3rd control unit 303, structural representation as shown in Figure 10, including：Second judgment sub-unit 501,
The three control control subelements 503 of subelement 502 and the 4th；
Second judgment sub-unit 501, for judging whether an antenna is provided with via node；
3rd control subelement 502, for when an antenna is equipped with via node, carrying out decoding to message signale
To the second broadcast singal, and according to the optimal transmission time in the 3rd transmission stage, control via node utilizes oriented energy signal
Second broadcast singal is sent to the second destination node；
4th control subelement 503, for when at least two antennas are equipped with via node, being solved to message signale
Code obtains the 4th directed message signal, and optimal transmission time according to the 3rd transmission stage and the optimal beam of via node into
Shape coefficient, control via node is sent to the second destination node the 4th directed message signal using oriented energy signal.
A kind of wireless energy drives transmitting device disclosed in the embodiment of the present invention, by calculating each communication chosen to right
Each optimal beam form factor for answering and the optimal transmission time in each transmission stage, control communication centering each source node
With the mixed transport that via node completes energy and information.Based on device disclosed in the invention described above, communication centering is realized each
Individual source node is successfully transmitted to respective destination node message, also, due to according to optimal beam form factor and optimal biography
The defeated time is transmitted, therefore reaches maximum weighted and rate communication.
Transmission method and device is driven to be described in detail a kind of wireless energy provided by the present invention above, herein
In apply specific case principle of the invention and implementation method be set forth, the explanation of above example is only intended to side
Assistant solves the method for the present invention and its core concept；Simultaneously for those of ordinary skill in the art, according to think of of the invention
Think, will change in specific embodiments and applications, in sum, it is right that this specification content should not be construed as
Limitation of the invention.
It should be noted that each embodiment in this specification is described by the way of progressive, each embodiment weight
Point explanation is all difference with other embodiment, between each embodiment identical similar part mutually referring to.
For device disclosed in embodiment, because it is corresponded to the method disclosed in Example, so fairly simple, the phase of description
Part is closed referring to method part illustration.
Also, it should be noted that herein, such as first and second or the like relational terms are used merely to one
Entity or operation make a distinction with another entity or operation, and between not necessarily requiring or implying these entities or operate
There is any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to contain
Lid nonexcludability is included, so that process, method, article or the intrinsic key element of equipment including a series of key elements,
Or it is these processes, method, article or the intrinsic key element of equipment also to include.In the absence of more restrictions,
The key element limited by sentence "including a ...", it is not excluded that in the process including the key element, method, article or equipment
In also there is other identical element.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The scope most wide for causing.
Claims (10)
1. a kind of wireless energy drives transmission method, it is characterised in that is applied to wireless energy and drives communication network, described wireless
Energy includes via node and at least two communication sets in driving communication network, and methods described includes：
Selection at least one is right for the communication of collaboration communication from communication set each described, and the communication is to comprising one first
Class communication set and an Equations of The Second Kind communication set, are equipped with least two antennas on the first source node in the first kind communication set；
For communicating right each described, each is equipped with least two optimal beams of the node of antenna to calculate the communication centering
Form factor and the optimal transmission time in each transmission stage, the node includes first source node, the relaying
Second source node of node or the Equations of The Second Kind communication set；
For communicating right each described, according to corresponding each described optimal beam form factor and each described optimal biography
Communicated described in defeated time control to the mixed transport for carrying out energy and message.
2. method according to claim 1, it is characterised in that the calculating communication centering each be equipped with least two
The optimal beam form factor of the node of antenna and the optimal transmission time in each transmission stage, including：
The first kind communication set and each self-corresponding total achievable rate formula of the Equations of The Second Kind communication set are generated, it is described total reachable
Transmission time parameter comprising beam forming parameter and each transmission stage in rate equation；
According to each self-corresponding total achievable rate formula of the first kind communication set and the Equations of The Second Kind communication set and power
Weight values, generate it is described communication to total achievable rate formula；
Build it is described communication to corresponding first Mathematical Modeling of total achievable rate formula；
Equivalence variable conversion is carried out to the beam forming coefficients in first Mathematical Modeling, the second Mathematical Modeling is obtained；
Variable replacement is carried out to beam forming coefficients in second Mathematical Modeling, the 3rd Mathematical Modeling is obtained；
Convex optimization processing is carried out to the 3rd Mathematical Modeling, the 4th Mathematical Modeling is obtained；
The globally optimal solution of the 4th Mathematical Modeling is calculated, and optimal beam form factor is obtained according to the globally optimal solution
And in the optimal transmission time in each transmission stage.
3. method according to claim 1, it is characterised in that described according to corresponding each described optimal beam shaping system
Communicated to the mixed transport for carrying out energy and message described in number and each described optimal transmission time control, including：
Optimal beam form factor and the optimal transmission time in the first transmission stage according to first source node, control are described
First source node sends the first directed message signal to the first destination node of the first kind communication set, meanwhile, will orient
Energy signal is sent to the via node；
According to the antenna amount being equipped with second source node and the optimal transmission time in the second transmission stage, described the is controlled
Two source nodes send message signale to second destination node and the via node of the Equations of The Second Kind communication set；
The optimal transmission time based on the antenna amount being equipped with the via node and the 3rd transmission stage, control the relaying
Node is sent to second destination node message signale using the oriented energy signal；
According to the 4th optimal transmission time for transmitting the stage, control first source node by the second directed message signal send to
First destination node.
4. method according to claim 3, it is characterised in that described according to the antenna number being equipped with second source node
Amount and the optimal transmission time in the second transmission stage, control second source node to send to the Equations of The Second Kind message signale and lead to
Second destination node and the via node of letter group, including：
Whether judge on second source node equipped with an antenna；
When an antenna is equipped with second source node, according to the optimal transmission time in the second transmission stage, control is described
Second source node sends the first broadcast message signals to second destination node and the relaying section of the Equations of The Second Kind communication set
Point；
When at least two antennas are equipped with second source node, according to the optimal beam form factor of second source node
With the optimal transmission time in the second transmission stage, control second source node to send to described the 3rd directed message signal
Second destination node and the via node of two class communication sets.
5. method according to claim 3, it is characterised in that described based on the antenna amount being equipped with the via node
The optimal transmission time for transmitting the stage with the 3rd, the via node is controlled to believe the message using the oriented energy signal
Number send to second destination node, including：
Judge whether an antenna is installed on the via node；
When an antenna is equipped with the via node, the message signale decode obtains the second broadcast singal, and
According to the optimal transmission time in the 3rd transmission stage, the via node is controlled to utilize the oriented energy signal by described second
Broadcast singal is sent to second destination node；
When at least two antennas are equipped with the via node, the message signale decode obtain the 4th directed message
Signal, and the optimal transmission time according to the 3rd transmission stage and the optimal beam form factor of the via node, control institute
Via node is stated to send to second destination node the 4th directed message signal using the oriented energy signal.
6. a kind of wireless energy drives transmitting device, it is characterised in that including：Communication is to choosing module, computing module and control
Transport module；
The communication is used for the communication of collaboration communication to choosing module for choosing at least one from communication set each described
Right, the communication is to comprising a first kind communication set and an Equations of The Second Kind communication set, in the first kind communication set first
At least two antennas are housed on source node；
The computing module, for for communicating right each described, each to be equipped with least two days to calculate the communication centering
The optimal beam form factor of the node of line and the optimal transmission time in each transmission stage, the node includes described the
Second source node of one source node, the via node or the Equations of The Second Kind communication set；
The controlling transmission module, for for communicating right each described, according to corresponding each described optimal beam shaping
Communicated to the mixed transport for carrying out energy and message described in coefficient and each described optimal transmission time control.
7. device according to claim 6, it is characterised in that the computing module includes：First formula generation unit,
Two formula generation units, Mathematical Modeling construction unit, equivalence variable conversion unit, variable replacement unit, convex optimization unit and meter
Calculate acquiring unit；
The first formula generation unit, it is each self-corresponding for generating the first kind communication set and the Equations of The Second Kind communication set
Total achievable rate formula, the transmission time comprising beam forming parameter and each transmission stage in total achievable rate formula
Parameter；
The second formula generation unit, for each self-corresponding according to the first kind communication set and the Equations of The Second Kind communication set
Total achievable rate formula and weighted value, generate it is described communication to total achievable rate formula；
The Mathematical Modeling construction unit, for build it is described communication to corresponding first mathematical modulo of total achievable rate formula
Type；
The equivalence variable conversion unit, turns for the beam forming coefficients in first Mathematical Modeling to be carried out with equivalence variable
Change, obtain the second Mathematical Modeling；
The variable replacement unit, for carrying out variable replacement to beam forming coefficients in second Mathematical Modeling, obtains
3rd Mathematical Modeling；
The convex optimization unit, for carrying out convex optimization processing to the 3rd Mathematical Modeling, obtains the 4th Mathematical Modeling；
The calculating acquiring unit, the globally optimal solution for calculating the 4th Mathematical Modeling, and according to the global optimum
Solution obtains optimal beam form factor and the optimal transmission time in each transmission stage.
8. device according to claim 6, it is characterised in that the controlling transmission module includes：First control unit,
Two control units, the 3rd control unit and the 4th control unit；
First control unit, the stage is transmitted for the optimal beam form factor according to first source node and first
The optimal transmission time, first source node is controlled to send the first directed message signal to the first of the first kind communication set
Destination node, meanwhile, oriented energy signal is sent to the via node；
Second control unit, for transmitting the stage most according to the antenna amount being equipped with second source node and second
Excellent transmission time, control second source node by message signale send to the Equations of The Second Kind communication set the second destination node and
The via node；
3rd control unit, for transmitting the optimal of stage based on the antenna amount being equipped with the via node and the 3rd
Transmission time, controls the via node to send to second purpose message signale using the oriented energy signal
Node；
4th control unit, the optimal transmission time for transmitting the stage according to the 4th, control first source node will
Second directed message signal is sent to first destination node.
9. device according to claim 8, it is characterised in that second control unit includes：First judgment sub-unit,
First control subelement and the second control subelement；
First judgment sub-unit, for whether judging on second source node equipped with an antenna；
The first control subelement, for when an antenna is equipped with second source node, according to the second transmission stage
The optimal transmission time, control second source node to send the first broadcast message signals to the of the Equations of The Second Kind communication set
Two destination nodes and the via node；
The second control subelement, for when at least two antennas are equipped with second source node, according to described second
The optimal beam form factor of source node and the optimal transmission time in the second transmission stage, second source node is controlled by the 3rd
Directed message signal is sent to second destination node and the via node of the Equations of The Second Kind communication set.
10. device according to claim 8, it is characterised in that the 3rd control unit includes：Second judges that son is single
Unit, the 3rd control subelement and the 4th control subelement；
Second judgment sub-unit, for judging whether an antenna is provided with the via node；
The 3rd control subelement, for when an antenna is equipped with the via node, being carried out to the message signale
Decoding obtains the second broadcast singal, and according to the optimal transmission time in the 3rd transmission stage, controls the via node to utilize institute
Oriented energy signal is stated to send to second destination node second broadcast singal；
The 4th control subelement, for when at least two antennas are equipped with the via node, to the message signale
Decode and obtain the 4th directed message signal, and optimal transmission time according to the 3rd transmission stage and the via node
Optimal beam form factor, controls the via node to send out the 4th directed message signal using the oriented energy signal
Deliver to second destination node.
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