CN106301521B - A kind of transmission method and device of the energy in wireless energy supply communication network and information - Google Patents
A kind of transmission method and device of the energy in wireless energy supply communication network and information Download PDFInfo
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- CN106301521B CN106301521B CN201610621532.6A CN201610621532A CN106301521B CN 106301521 B CN106301521 B CN 106301521B CN 201610621532 A CN201610621532 A CN 201610621532A CN 106301521 B CN106301521 B CN 106301521B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15564—Relay station antennae loop interference reduction
- H04B7/15571—Relay station antennae loop interference reduction by signal isolation, e.g. isolation by frequency or by antenna pattern, or by polarization
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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Abstract
The transmission method and device of the embodiment of the invention provides a kind of in wireless energy supply communication network energy and information, using full-duplex communication mode, by designing the wave beam forming factor to source node and relay node, to reduce the self-interference generated during full-duplex communication, the handling capacity of network is improved；On the one hand source node obtains energy from the signal that relay node is sent, on the other hand obtain energy from the signal that itself is sent, the efficiency of source node itself can be improved.
Description
Technical field
The present invention relates to wireless communication technology field, more particularly to one kind in wireless energy supply communication network energy and letter
The transmission method and device of breath.
Background technique
Energy and environment problem is the challenge of Present Global facing.The carbon emission and energy consumption of Information and Communication Technology industry
Shared ratio increases rapidly, and wireless communication industry occupies an important position in terms of energy-saving and emission-reduction.Therefore, low-carbon, health, height
The green communications system of effect increasingly causes the concern of people, has a good application prospect.As traditional energy such as wind energy, solar energy
The substitution in source, radio frequency are considered as a kind of new feasible energy source.The RF energy that RF energy is converted into electric energy is collected
Technology is a kind of with the technology of permanent, convenient and fast energy supply potentiality is provided, and is considered as solving the wireless network of energy constraint
Shortage of energy problem key technology, meet the standard of green communications.Therefore, wireless energy supply communication network, i.e. base station utilize
Downlink transmission energy and user is decoded by uplink transmission information, attracted the interest of more and more people.
With the development of technology, the combination of relaying technique, full duplex technology and RF energy collection technique improves radio frequency
The performance and application range of energy collection technology.Relaying technique solves radio energy-transmitting technology (wireless power
Transfer applications distances problem), so that radio energy-transmitting technology, which has, realizes meaning.By using relay node, in cooperation
It can help to overcome channel fading after technology, improve the efficiency and reliability of network.Usual junction network is using half pair
Work mode.Half-duplex relay working method itself results in the massive losses of spectrum efficiency, and solves the problems, such as this tool
The scheme for having very big prospect is exactly to use full duplex relaying, and relay node can be used similar frequency bands while send and receive letter
Number.But since the intensity of circuit interference (loopback interference) is high, information while, sends and receives reality
Now get up relatively difficult.
The information and energy transmission method of existing WPCN (wireless charging energy communication network) are a kind of two-part transport protocol, should
Mode is semiduplex mode, i.e., a transmission time slot of base station is divided into two sub-slots, in first sub-slots, base station
(relay node) carries out wireless charging energy to user (source node) using downlink；And in second time slot, in the conduct of base station
Source node is assisted to transmit information to destination node after node.Nodes configure single antenna, and source node, which is taken, first collects energy
Amount transmits the operating mode of information again.
But above-mentioned transmission method has the following problems: firstly, the prior art uses half-duplex transmission mode, leading to network
Entire throughput is not high；Secondly, the transport protocol of the prior art is only applicable to half-duplex transmission mode, it is not suitable for full duplex biography
Defeated mode.
Summary of the invention
The transmission side for being designed to provide a kind of energy and information in wireless energy supply communication network of the embodiment of the present invention
Method and device, to improve the handling capacity and efficiency of network.
Specific technical solution is as follows:
The first scheme: a kind of transmission method of energy and information in wireless energy supply communication network is applied to wireless supply
Can in communication network full duplex source node, further include the relay node and purpose of full duplex in the wireless energy supply communication network
Node, which comprises
Signal to be sent is obtained, wave beam forming is carried out to signal to be sent using preset first wave beam forming vector and is obtained
First signal；
First signal is sent to relay node by preset the first transmission antenna for being only used for sending signal, so that in
First signal is received by preset the second receiving antenna for being only used for receiving signal after node；
The first signal is received by preset the first receiving antenna for being only used for receiving signal, obtains energy from the first signal
Measure information；
The second signal sent by relay node is received by first receiving antenna, energy is obtained from second signal
Information；The second signal are as follows: the relay node using preset second wave beam forming vector to first signal into
What row wave beam forming obtained, and destination node and source section are sent to by preset the second transmission antenna for being only used for sending signal
The signal of point.
Second scheme: a kind of transmission method of energy and information in wireless energy supply communication network is applied to wireless supply
Can in communication network full duplex relay node, further include the source node and purpose of full duplex in the wireless energy supply communication network
Node, which comprises
Pass through preset the first signal for being only used for receiving the second receiving antenna reception source node transmission of signal；Described
One signal be source node using preset first wave beam forming vector to signal to be sent carry out wave beam forming acquisition and pass through
It is preset to be only used for sending the signal that the first transmission antenna of signal is sent；
Wave beam forming is carried out to the first signal using preset second wave beam forming vector and obtains second signal；
The second signal is sent to source node and mesh by preset the second transmission antenna for being only used for sending signal
Node is marked, so that source node is by preset the first receiving antenna reception second signal for being only used for receiving signal, and from
Energy is obtained in the second signal.
Preferably,
The first wave beam forming vector are as follows:
Wherein, η indicates the energy conversion efficiency of energy collection circuit, PmIndicate the transmission power of relay node,hrsIndicate channel of the relay node to source node, NrIt indicates one and meets hrrNr=0 HeSquare
Battle array, hrrIndicate relay node remaining interference channel after the elimination of time domain self-interference,
Respectively indicate hsr, hssConjugate transposition, hsrIndicate channel of the source node to relay node, hssIndicate the ring-type of source node itself
Channel；
The second wave beam forming vector are as follows:
Wherein, arIndicate the power amplification factor, vrIndicate wave beam dominant vector, NrIt indicates one and meets hrrNr=0 HeMatrix.
Preferably,
The first wave beam forming vector calculates acquisition as follows:
The signal that relay node receives indicates are as follows: yr(n)=hsrwsxs(n)+hrrxr(n)+nr(n),
Wherein n indicates n-th of communication block, hsrIndicate channel of the source node to relay node, wsIndicate the first of source node
Wave beam forming vector, xs(n) data that source node is sent, h are indicatedrrIndicate surplus after relay node is eliminated by time domain self-interference
Remaining interference channel, xr(n) data that relay node is sent, n are indicatedr(n) noise signal that relay node receives is indicated；
The signal that relay node is sent indicates are as follows:
xr(n)=wryr(n- ω)=wrhsrwsxs(n-ω)+wrhrrxr(n-ω)+wrnr(n- ω),
Wherein, wrIndicate that the second wave beam forming vector of relay node, ω indicate that relaying is the time of node processing information,
yr(n- ω) is indicated in the signal that n- ω this moment relay node receives, hsrIndicate source node to relay node channel,
wsIndicate that the first wave beam forming vector of source node, ω indicate relay node processing delay, xr(n- ω) indicate n- ω this when
Carve the information that source node is sent, xr(n- ω) indicates the data sent in this moment relay node of n- ω, nr(n- ω) indicates n-
Additive noise of this moment of ω in relay node；
Substitute into hrrwr=0, the signal that relay node is sent indicates are as follows:
xr(n)=wrhsrwsxs(n-ω)+wrnr(n-ω)；
The signal that destination node receives indicates are as follows:
Wherein,Indicate the noise of destination node；
The signal that source node receives indicates are as follows:
ys(n)=hsswsxs(n)+hrsxr(n)+ns(n)
=hsswsxs(n)+hrswrhsrwsxs(n-ω)+hrswrnr(n-ω)+ns(n),
Wherein, xs(n) data that source node is sent, x are indicatedsWhat (n- ω) expression was sent in this moment source node of n- ω
Information, nr(n- ω) indicates additive noise of this moment of n- ω in relay node, ns(n) noise that source node receives is indicated
Signal；
The gross energy that source node obtains in each communication block indicates are as follows:
Wherein, 0 < η≤1 indicates the efficiency of energy collection of source node, and T represents the duration of each communication block,It indicates
The variance of additive noise at relay node receiving antenna；
Network throughput indicates are as follows: R=log2(1+SNR), wherein SNR indicates signal-to-noise ratio end to end；
Keep network throughput maximum, signal-to-noise ratio maximizes formula expression to system end to end are as follows:
Wherein, hrdIndicate channel of the relay node to destination node, wrIndicate the second wave beam forming vector of relay node,
hsrIndicate channel of the source node to relay node, wsIndicate the first wave beam forming vector of source node,Indicate that destination node connects
The variance of the additive noise at antenna is received,Indicate the variance of the additive noise at relay node receiving antenna；hrrIndicate relaying
Remaining interference channel after node is eliminated by time domain self-interference, PSIndicate the transmission power of source node, EsIndicate each communication
The gross energy that source node receives in block, EsExpression formula are as follows:Its
In 0 < η≤1 indicate the efficiency of energy collection of source node, T indicates the duration of each communication block, PmIndicate relay node
Send power；
By wrIt is decomposed into wr=arNrvr, wherein arIndicate the power amplification factor, vrIndicate wave beam dominant vector, NrIndicate one
It is a to meet hrrNr=0 HeMatrix, the maximization formula (1) is transformed into as a result:
In the case where guaranteeing feasibility, arOptimal solution are as follows:
By arOptimal solution substitute into maximize formula (2), obtain maximize formula (3):
vrThe parameter being expressed as:
Wherein 0≤x≤1,It indicatesConjugate transposition,It indicates's
Conjugate transposition, η indicate the energy conversion efficiency of energy collection circuit, ΠXIndicate the column space rectangular projection to X,Indicate to
The orthocomplement, orthogonal complement of X column space projects, and therefore, maximizes formula (3) and is equivalent to:
Wherein f (x) is defined as:
W is obtained as a result,sGlobal optimum are as follows:
WhereinAndRespectively indicate hsr, hssConjugate transposition；
The second wave beam forming vector calculates acquisition as follows:
It willExpression formula substitute into maximize formula (3), obtain the Explicit functions of function f (x):
Wherein,
F (x) is a unimodal function, obtains the optimal solution of x, therefore v with dichotomyrOptimal solution are as follows:
In conjunction with arOptimal solution, obtain wrGlobal optimum be
The third scheme: a kind of transmitting device of energy and information in wireless energy supply communication network is applied to wireless supply
Can in communication network full duplex source node, further include the relay node and purpose of full duplex in the wireless energy supply communication network
Node, described device include:
First wave beam forming unit, for obtaining signal to be sent, using preset first wave beam forming vector to pending
The number of delivering letters carries out wave beam forming and obtains the first signal；
First transmission unit, for sending the first signal by preset the first transmission antenna for being only used for sending signal
To relay node, so that relay node receives first letter by preset the second receiving antenna for being only used for receiving signal
Number；
First receiving unit, for receiving the first signal by preset the first receiving antenna for being only used for receiving signal,
Energy information is obtained from the first signal；
Second receiving unit, for receiving the second signal sent by relay node by first receiving antenna, from
Energy information is obtained in second signal；The second signal are as follows: the relay node using preset second wave beam forming to
It measures and wave beam forming acquisition is carried out to first signal, and pass through preset the second transmission antenna hair for being only used for sending signal
Send the signal to destination node and source node.
4th kind of scheme: a kind of transmitting device of energy and information in wireless energy supply communication network is applied to wireless supply
Can in communication network full duplex relay node, further include the source node and purpose of full duplex in the wireless energy supply communication network
Node, described device include:
Third receiving unit, for receiving source node transmission by preset the second receiving antenna for being only used for receiving signal
The first signal；First signal is that source node uses preset first wave beam forming vector to carry out wave beam to signal to be sent
Signal that is that figuration obtains and being sent by preset the first transmission antenna for being only used for transmission signal；
Second wave beam forming unit, for carrying out wave beam forming to the first signal using preset second wave beam forming vector
Obtain second signal；
Second transmission unit, for being only used for sending the second transmission antenna of signal for the second signal by preset
It is sent to source node and destination node, so that source node receives institute by preset the first receiving antenna for being only used for receiving signal
Second signal is stated, and obtains energy from the second signal.
The transmission method and device of the energy in wireless energy supply communication network and information provided in an embodiment of the present invention use
Full-duplex communication mode, by designing the wave beam forming factor to source node and relay node, during reducing full-duplex communication
The self-interference of generation improves the handling capacity of network；On the one hand source node obtains energy from the signal that relay node is sent, another
Aspect obtains energy from the signal that itself is sent, and the efficiency of source node itself can be improved.Certainly, implement of the invention appoint
One product or method must be not necessarily required to reach all the above advantage simultaneously.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the application scenario diagram of the method for the present invention；
Fig. 2 is the flow chart of embodiment of the present invention method one；
Fig. 3 is that the relay node self-interference used in the method for the present invention eliminates circuit block diagram；
Fig. 4 is the source node energy collection circuit block diagram used in the method for the present invention；
Fig. 5 is the flow chart of embodiment of the present invention method four；
Fig. 6 is the graph of relation of repeat transmitted power and throughput of system；
Fig. 7 is the structure chart of apparatus of the present invention embodiment one；
Fig. 8 is the structure chart of apparatus of the present invention embodiment two.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention is mutually to tie full duplex technology with multi-antenna technology under the scene of the WPCN based on relaying
It closes, proposes a kind of novel one-part form transmission plan, by presetting wave beam forming vector, it is laggard that wave beam forming is carried out to signal
Row transmission, solves the problems, such as full duplex technology bring self-interference, and the throughput performance of system accordingly greatly improved.
Here, it should be noted that first by source node, relay node and the destination node in network in present example
All it is configured to full-duplex mode.Wherein, source node configures the day for being only used for receiving signal (being namely used to collect energy)
Line, and at least two antennas for being only used for sending signal；Relay node also configures the day for being only used for receiving signal simultaneously
Line, and at least two for sending the antenna of signal.
Embodiment of the method one
A kind of embodiment of the present invention energy and the transmission method of information in wireless energy supply communication network, such as Fig. 1 institute
Show, further includes full duplex in the wireless energy supply communication network applied to the source node S of full duplex in wireless energy supply communication network
Relay node R and destination node D；
Method is as shown in Figure 2, comprising:
S201: obtaining signal to be sent, carries out wave beam tax to signal to be sent using preset first wave beam forming vector
Shape obtains the first signal；
Specifically, the first wave beam forming vector are as follows:
Wherein, η indicates the energy conversion efficiency of energy collection circuit, PmIndicate the transmission power of relay node,hrsIndicate channel of the relay node to source node, NrIt indicates one and meets hrrNr=0 HeMatrix,
hrrIndicate relay node remaining interference channel after the elimination of time domain self-interference,Respectively
Indicate hsr, hssConjugate transposition, hsrIndicate channel of the source node to relay node, hssIndicate the annular track of source node itself；
Preferably, the first wave beam forming vector calculates acquisition as follows:
The signal that relay node receives indicates are as follows: yr(n)=hsrwsxs(n)+hrrxr(n)+nr(n),
Wherein n indicates n-th of communication block, hsrIndicate channel of the source node to relay node, wsIndicate the first of source node
Wave beam forming vector, xs(n) data that source node is sent, h are indicatedrrIndicate surplus after relay node is eliminated by time domain self-interference
Remaining interference channel, xr(n) data that relay node is sent, n are indicatedr(n) noise signal that relay node receives is indicated；
The signal that relay node is sent indicates are as follows:
xr(n)=wryr(n- ω)=wrhsrwsxs(n-ω)+wrhrrxr(n-ω)+wrnr(n-ω)。
Wherein, wrIndicate that the second wave beam forming vector of relay node, ω indicate that relaying is the time of node processing information,
yr(n- ω) is indicated in the signal that n- ω this moment relay node receives, hsrIndicate source node to relay node channel,
wsIndicate that the first wave beam forming vector of source node, ω indicate relay node processing delay, xs(n- ω) indicate n- ω this when
Carve the information that source node is sent, xr(n- ω) indicates the data sent in this moment relay node of n- ω, nr(n- ω) indicates n-
Additive noise of this moment of ω in relay node；
Substitute into hrrwr=0, the signal that relay node is sent indicates are as follows:
xr(n)=wrhsrwsxs(n-ω)+wrnr(n-ω)；
The signal that destination node receives indicates are as follows:
Wherein,Indicate the noise of destination node；
The signal that source node receives indicates are as follows:
ys(n)=hsswsxs(n)+hrsxr(n)+ns(n)
=hsswsxs(n)+hrswrhsrwsxs(n-ω)+hrswrnr(n-ω)+ns(n),
Wherein, xs(n) data that source node is sent, x are indicatedsWhat (n- ω) expression was sent in this moment source node of n- ω
Information, nr(n- ω) indicates additive noise of this moment of n- ω in relay node, ns(n) noise that source node receives is indicated
Signal；
The gross energy that source node obtains in each communication block indicates are as follows:
Wherein, 0 < η≤1 indicates the efficiency of energy collection of source node, and T represents the duration of each communication block,It indicates
The variance of additive noise at relay node receiving antenna；
Network throughput indicates are as follows: R=log2(1+SNR), wherein SNR indicates signal-to-noise ratio end to end；
Keep network throughput maximum, signal-to-noise ratio maximizes formula expression to system end to end are as follows:
Wherein, hrdIndicate channel of the relay node to destination node, wrIndicate the second wave beam forming vector of relay node,
hsrIndicate channel of the source node to relay node, wsIndicate the first wave beam forming vector of source node,Indicate that destination node connects
The variance of the additive noise at antenna is received,Indicate the variance of the additive noise at relay node receiving antenna；hrrIndicate relaying
Remaining interference channel after node is eliminated by time domain self-interference, PSIndicate the transmission power of source node, EsIndicate each communication
The gross energy that source node receives in block, EsExpression formula are as follows:Its
In 0 < η≤1 indicate the efficiency of energy collection of source node, T indicates the duration of each communication block, PmIndicate relay node
Send power；
By wrIt is decomposed into wr=arNrvr, wherein arIndicate the power amplification factor, vrIndicate wave beam dominant vector, NrIndicate one
It is a to meet hrrNr=0 HeMatrix, the maximization formula (1) is transformed into as a result:
In the case where guaranteeing feasibility, arOptimal solution are as follows:
By arOptimal solution substitute into maximize formula (2), obtain maximize formula (3):
vrThe parameter being expressed as:
Wherein 0≤x≤1,It indicatesConjugate transposition,It indicatesBe total to
Yoke transposition, η indicate the energy conversion efficiency of energy collection circuit, ΠXIndicate the column space rectangular projection to X,It indicates to X
The orthocomplement, orthogonal complement of column space projects, and therefore, maximizes formula (3) and is equivalent to:
Wherein f (x) is defined as:
W is obtained as a result,sGlobal optimum are as follows:
WhereinAndRespectively indicate hsr, hssConjugate transposition；
It should be noted that relay node is eliminated by time domain self-interference, disappeared using self-interference commonly used in the prior art
Except circuit is realized.For example, as shown in figure 3, simulation self-interference signal and digital self-interference signal difference that transmitting antenna generates are defeated
Enter to simulation interference cancellation circuit and digital interference cancellation circuit, carries out time domain interference and eliminate.
It should be noted that the calculating process of the first wave beam forming vector is carried out in relay node.
S202: being sent to relay node by preset the first transmission antenna for being only used for sending signal for the first signal,
So that relay node receives first signal by preset the second receiving antenna for being only used for receiving signal；
Preferably, the first transmission antenna sets at least to two；
Preferably, the second receiving antenna is set as one；
S203: the first signal is received by preset the first receiving antenna for being only used for receiving signal, from the first signal
Obtain energy information；
Preferably, the first receiving antenna is set as one；
It should be noted that energy information is obtained from the first signal, using collection of energy electricity commonly used in the prior art
It realizes on road.For example, as shown in figure 4, passing through impedance matching, rectification circuit and storage after receiving antenna receives the signal with energy
It can circuit acquisition energy.
S204: the second signal sent by relay node is received by first receiving antenna, is obtained from second signal
Obtain energy information；The second signal are as follows: the relay node is using preset second wave beam forming vector to described first
Signal carries out wave beam forming acquisition, and is sent to destination node by preset the second transmission antenna for being only used for sending signal
With the signal of source node.
Specifically, the second wave beam forming vector are as follows:
Wherein, arIndicate the power amplification factor, vrIndicate wave beam dominant vector, NrIt indicates one and meets hrrNr=0 HeMatrix；
Preferably, the second wave beam forming vector calculates acquisition as follows:
It willExpression formula substitute into maximize formula (3), obtain the Explicit functions of function f (x):
Wherein,
F (x) is a unimodal function, obtains the optimal solution of x, therefore v with dichotomyrOptimal solution are as follows:
In conjunction with arOptimal solution, obtain wrGlobal optimum be
Preferably, the first receiving antenna is set as one；
Preferably, the second transmission antenna sets at least to two；
It should be noted that the calculating process of the second wave beam forming vector is carried out in relay node；
It should be noted that energy information is obtained from second signal, using collection of energy electricity commonly used in the prior art
Road is realized, as shown in figure 4, being not repeated herein.
To sum up, in embodiments of the present invention, source node can while sending signal, collect from the first signal and
The energy of second signal can effectively promote the performance of whole system in this way.
Embodiment of the method two
The present embodiment on the basis of the above embodiment 1, willSimplify are as follows:
To sum up, in embodiments of the present invention, the energy that source node is obtained from the second signal received is maximized, is reduced
The complexity that wave beam forming factor optimal value calculates.
Embodiment of the method three
The present embodiment on the basis of the above embodiment 1, willSimplify are as follows:
To sum up, in embodiments of the present invention, the signal that relay node is transmitted to destination node is maximized, wave beam tax is reduced
The complexity that shape factor optimal value calculates.
Embodiment of the method four
4th kind of embodiment of the present invention energy and the transmission method of information in wireless energy supply communication network, such as Fig. 1 institute
Show, further includes complete double applied to the relay node R of full duplex in wireless energy supply communication network, in the wireless energy supply communication network
The source node S and destination node D of work；
Method is as shown in Figure 5, comprising:
S501: pass through preset the first signal for being only used for receiving the second receiving antenna reception source node transmission of signal；
First signal be source node using preset first wave beam forming vector to signal to be sent carry out wave beam forming acquisition,
And pass through the preset signal for being only used for sending the first transmission antenna transmission of signal；
Preferably, the second receiving antenna is set as one；
Preferably, the first transmission antenna sets at least to two；
Specifically, the first wave beam forming vector are as follows:
Wherein, η indicates the energy conversion efficiency of energy collection circuit, PmIndicate the transmission power of relay node,hrsIndicate channel of the relay node to source node, NrIt indicates one and meets hrrNr=0 HeSquare
Battle array, hrrIndicate relay node remaining interference channel after the elimination of time domain self-interference,
Respectively indicate hsr, hssConjugate transposition, hsrIndicate channel of the source node to relay node, hssIndicate the ring-type of source node itself
Channel；
Preferably, the first wave beam forming vector calculates acquisition as follows:
The signal that relay node receives indicates are as follows: yr(n)=hsrwsxs(n)+hrrxr(n)+nr(n),
Wherein n indicates n-th of communication block, hsrIndicate channel of the source node to relay node, wsIndicate the first of source node
Wave beam forming vector, xs(n) data that source node is sent, h are indicatedrrIndicate surplus after relay node is eliminated by time domain self-interference
Remaining interference channel, xr(n) data that relay node is sent, n are indicatedr(n) noise signal that relay node receives is indicated；
The signal that relay node is sent indicates are as follows:
xr(n)=wryr(n- ω)=wrhsrwsxs(n-ω)+wrhrrxr(n-ω)+wrnr(n- ω),
Wherein, wrIndicate that the second wave beam forming vector of relay node, ω indicate that relaying is the time of node processing information,
yr(n- ω) is indicated in the signal that n- ω this moment relay node receives, hsrIndicate source node to relay node channel,
wsIndicate that the first wave beam forming vector of source node, ω indicate relay node processing delay, xs(n- ω) indicate n- ω this when
Carve the information that source node is sent, xr(n- ω) indicates the data sent in this moment relay node of n- ω, nr(n- ω) indicates n-
Additive noise of this moment of ω in relay node；
Substitute into hrrwr=0, the signal that relay node is sent indicates are as follows:
xr(n)=wrhsrwsxs(n-ω)+wrnr(n-ω)；
The signal that destination node receives indicates are as follows:
Wherein,Indicate the noise of destination node；
The signal that source node receives indicates are as follows:
ys(n)=hsswsxs(n)+hrsxr(n)+ns(n)
=hsswsxs(n)+hrswrhsrwsxs(n-ω)+hrswrnr(n-ω)+ns(n),
Wherein, xs(n) data that source node is sent, x are indicatedsWhat (n- ω) expression was sent in this moment source node of n- ω
Information, nr(n- ω) indicates additive noise of this moment of n- ω in relay node, ns(n) noise that source node receives is indicated
Signal；
The gross energy that source node obtains in each communication block indicates are as follows:
Wherein, 0 < η≤1 indicates the efficiency of energy collection of source node, and T represents the duration of each communication block,It indicates
The variance of additive noise at relay node receiving antenna；
Network throughput indicates are as follows: R=log2(1+SNR), wherein SNR indicates signal-to-noise ratio end to end；
Keep network throughput maximum, signal-to-noise ratio maximizes formula expression to system end to end are as follows:
Wherein, hrdIndicate channel of the relay node to destination node, wrIndicate the second wave beam forming vector of relay node,
hsrIndicate channel of the source node to relay node, wsIndicate the first wave beam forming vector of source node,Indicate that destination node connects
The variance of the additive noise at antenna is received,Indicate the variance of the additive noise at relay node receiving antenna；hrrIndicate relaying
Remaining interference channel after node is eliminated by time domain self-interference, PSIndicate the transmission power of source node, EsIndicate each communication
The gross energy that source node receives in block, EsExpression formula are as follows:Its
In 0 < η≤1 indicate the efficiency of energy collection of source node, T indicates the duration of each communication block, PmIndicate relay node
Send power；
By wrIt is decomposed into wr=arNrvr, wherein arIndicate the power amplification factor, vrIndicate wave beam dominant vector, NrIndicate one
It is a to meet hrrNr=0 HeMatrix, the maximization formula (1) is transformed into as a result:
In the case where guaranteeing feasibility, arOptimal solution are as follows:
By arOptimal solution substitute into maximize formula (2), obtain maximize formula (3):
vrThe parameter being expressed as:
Wherein 0≤x≤1,It indicatesConjugate transposition,It indicates's
Conjugate transposition, η indicate the energy conversion efficiency of energy collection circuit, ПXIndicate the column space rectangular projection to X,Indicate to
The orthocomplement, orthogonal complement of X column space projects, and therefore, maximizes formula (3) and is equivalent to:
Wherein f (x) is defined as:
W is obtained as a result,sGlobal optimum are as follows:
WhereinAndRespectively indicate hsr, hssConjugate transposition；
It should be noted that relay node is eliminated by time domain self-interference, used as source node in the prior art often
Self-interference is eliminated circuit and is realized, as shown in figure 3, being not repeated herein.
It should be noted that the calculating process of the first wave beam forming vector is carried out in relay node.
S502: wave beam forming is carried out to the first signal using preset second wave beam forming vector and obtains second signal；
Specifically, the second wave beam forming vector are as follows:
Wherein, arIndicate the power amplification factor, vrIndicate wave beam dominant vector, NrIt indicates one and meets hrrNr=0 HeMatrix；
Preferably, the second wave beam forming vector calculates acquisition as follows:
It willExpression formula substitute into maximize formula (3), obtain the Explicit functions of function f (x):
Wherein,
F (x) is a unimodal function, obtains the optimal solution of x, therefore v with dichotomyrOptimal solution are as follows:
In conjunction with arOptimal solution, obtain wrGlobal optimum be
It should be noted that the calculating process of the second wave beam forming vector is carried out in relay node.
S503: the second signal is sent to by source node by preset the second transmission antenna for being only used for sending signal
And destination node, so that source node receives the second signal by preset the first receiving antenna for being only used for receiving signal,
And energy is obtained from the second signal；
Preferably, the second transmission antenna sets at least to two；
Preferably, the first receiving antenna is set as one；
It should be noted that source node obtains energy information from second signal, using energy commonly used in the prior art
Collecting circuit is realized, as shown in figure 4, being not repeated herein.
To sum up, in embodiments of the present invention, relay node can send and receive signal simultaneously, being capable of effective lifting system
Information transfer efficiency.It is reliable to destination node link transmission that the beam forming processing of relay node is able to ascend relay node
Property, the performance of lifting system.
Embodiment of the method five
5th kind of embodiment of the present invention energy and the transmission method of information in wireless energy supply communication network, setting are wireless
Source node, a relay node and a destination node are contained at least one in energy supply communication network.Noise function in network
Rate isEnergy conversion efficiency η=0.8 of source node.The transmission antenna number of source node and relay node
For Nr=Ns=3.Self-interference channel at source node isWherein βssThe loss of=- 15dB delegated path.Class
Seemingly, βsr=βrd=βrr=βrs=-60dB respectively represents hsr,hrd,hrr,hrsPath loss.Signal-to-noise ratio is most end to end for system
Bigization formula are as follows:
subject to hrrwr=0
0≤Ps=| | ws||2≤Es/T
By wrIt is decomposed into wr=arNrvr, maximize formula conversion are as follows:
subjectto||vr||2=1
Wherein arOptimal solution are as follows:
Above formula is substituted into maximization formula above, available following optimization formula:
subjectto||vr||2=1
||ws||2≤η(|hssws|2+Pm|hrsNrvr|2),
Obtain the global optimum of optimized variable are as follows:
And it can prove that f (x) is a unimodal function, obtain the optimal solution of x, therefore v with dichotomyrOptimal solution
Are as follows:
Before this, it has been similarly obtained optimal ar, therefore w can be obtainedrGlobal optimum be
Fig. 6 is the graph of relation of repeat transmitted power and throughput of system, from fig. 6, it can be seen that the present invention is using complete
Duplex technology proposes a kind of one-part form transmission plan, i.e. source node, relay node and destination node can be received simultaneously/be sent
Signal, the prior art use half duplex techniques, the function of signal are unable to complete while receiving/sending, according to the embodiment of the present invention
Transmission method, compared with the transmission method according to the prior art, under identical repeat transmitted power, handling capacity is obviously mentioned
Height effectively improves whole system performance.
Installation practice one
The first embodiment of the present invention energy and the transmitting device of information in wireless energy supply communication network, such as Fig. 7 institute
Show, further includes full duplex in the wireless energy supply communication network applied to the source node of full duplex in wireless energy supply communication network
Relay node and destination node, described device include:
First wave beam forming unit 701 is treated for obtaining signal to be sent using preset first wave beam forming vector
It sends signal progress wave beam forming and obtains the first signal；
First transmission unit 702, for the first signal to be passed through preset the first transmission antenna for being only used for sending signal
It is sent to relay node, so that relay node receives described first by preset the second receiving antenna for being only used for receiving signal
Signal；
First receiving unit 703, for receiving the first letter by preset the first receiving antenna for being only used for receiving signal
Number, energy information is obtained from the first signal；
Second receiving unit 704, for receiving the second signal sent by relay node by first receiving antenna,
Energy information is obtained from second signal；The second signal are as follows: the relay node uses preset second wave beam forming
Vector carries out wave beam forming acquisition to first signal, and passes through preset the second transmission antenna for being only used for sending signal
It is sent to the signal of destination node and source node.
To sum up, in embodiments of the present invention, source node can while sending signal, collect from the first signal and
The energy of second signal can effectively promote the performance of whole system in this way.
Installation practice two
Second of embodiment of the present invention energy and the transmitting device of information in wireless energy supply communication network, such as Fig. 8 institute
Show, further includes complete double applied to the relay node of full duplex in wireless energy supply communication network, in the wireless energy supply communication network
The source node and destination node of work, described device include:
Third receiving unit 801, for receiving source node by preset the second receiving antenna for being only used for receiving signal
The first signal sent；First signal is that source node carries out signal to be sent using preset first wave beam forming vector
Signal that is that wave beam forming obtains and being sent by preset the first transmission antenna for being only used for transmission signal；
Second wave beam forming unit 802, for carrying out wave beam to the first signal using preset second wave beam forming vector
Figuration obtains second signal；
Second transmission unit 803, for passing through preset the second transmission antenna for being only used for transmission signal for described second
Signal is sent to source node and destination node, so that source node is connect by preset the first receiving antenna for being only used for receiving signal
The second signal is received, and obtains energy from the second signal.
To sum up, in embodiments of the present invention, relay node can send and receive signal simultaneously, being capable of effective lifting system
Information transfer efficiency.It is reliable to destination node link transmission that the beam forming processing of relay node is able to ascend relay node
Property, the performance of lifting system.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method
Part explanation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (8)
1. a kind of transmission method of energy and information in wireless energy supply communication network, which is characterized in that be applied to wireless energy supply
The source node of full duplex in communication network further includes the relay node and purpose section of full duplex in the wireless energy supply communication network
Point, which comprises
Signal to be sent is obtained, wave beam forming is carried out to signal to be sent using preset first wave beam forming vector and obtains first
Signal；
First signal is sent to relay node by preset the first transmission antenna for being only used for sending signal, so that relaying saves
Point receives first signal by preset the second receiving antenna for being only used for receiving signal；
The first signal is received by preset the first receiving antenna for being only used for receiving signal, energy letter is obtained from the first signal
Breath；
The second signal sent by relay node is received by first receiving antenna, energy letter is obtained from second signal
Breath；The second signal are as follows: the relay node carries out first signal using preset second wave beam forming vector
What wave beam forming obtained, and destination node and source node are sent to by preset the second transmission antenna for being only used for sending signal
Signal.
2. the transmission method of energy and information according to claim 1 in wireless energy supply communication network, which is characterized in that
The first wave beam forming vector are as follows:
Wherein, η indicates the energy conversion efficiency of energy collection circuit, PmIndicate the transmission power of relay node,
hrsIndicate channel of the relay node to source node, NrIt indicates one and meets hrrNr=0 HeMatrix, hrrIndicate relaying
Remaining interference channel after node is eliminated by time domain self-interference, Respectively indicate hsr, hss's
Conjugate transposition, hsrIndicate channel of the source node to relay node, hssIndicate the annular track of source node itself；
The second wave beam forming vector are as follows:
Wherein, arIndicate the power amplification factor, vrIndicate wave beam dominant vector, NrIt indicates one and meets hrrNr=0 He
Matrix.
3. the transmission method of energy and information according to claim 1 in wireless energy supply communication network, which is characterized in that
The first wave beam forming vector calculates acquisition as follows:
The signal that relay node receives indicates are as follows: yr(n)=hsrwsxs(n)+hrrxr(n)+nr(n),
Wherein n indicates n-th of communication block, hsrIndicate channel of the source node to relay node, wsIndicate the first wave beam of source node
Figuration vector, xs(n) data that source node is sent, h are indicatedrrIndicate remaining after relay node is eliminated by time domain self-interference
Interference channel, xr(n) data that relay node is sent, n are indicatedr(n) noise signal that relay node receives is indicated；
The signal that relay node is sent indicates are as follows:
xr(n)=wryr(n- ω)=wrhsrwsxs(n-ω)+wrhrrxr(n-ω)+wrnr(n- ω),
Wherein, wrIndicate that the second wave beam forming vector of relay node, ω indicate that relaying is the time of node processing information, yr(n-
It ω) indicates in the signal that n- ω this moment relay node receives, hsrIndicate channel of the source node to relay node, wsIt indicates
First wave beam forming vector of source node, ω indicate relay node processing delay, xs(n- ω) is indicated in this time source of n- ω
The information that node is sent, xr(n- ω) indicates the data sent in this moment relay node of n- ω, nr(n- ω) indicate n- ω this
It is engraved in the additive noise of relay node for the moment；
Substitute into hrrwr=0, the signal that relay node is sent indicates are as follows:
xr(n)=wrhsrwsxs(n-ω)+wrnr(n-ω)；
The signal that destination node receives indicates are as follows:
Wherein, Indicate the noise of destination node；
The signal that source node receives indicates are as follows:
ys(n)=hsswsxs(n)+hrsxr(n)+ns(n)
=hsswsxs(n)+hrswrhsrwsxs(n-ω)+hrswrnr(n-ω)+ns(n),
Wherein, xs(n) data that source node is sent, x are indicateds(n- ω) indicates the information sent in this moment source node of n- ω,
nr(n- ω) indicates additive noise of this moment of n- ω in relay node, ns(n) noise signal that source node receives is indicated；
The gross energy that source node obtains in each communication block indicates are as follows:
Wherein, 0 < η≤1 indicates the efficiency of energy collection of source node, and T represents the duration of each communication block,Indicate relaying
The variance of additive noise at node receiving antenna；
Network throughput indicates are as follows: R=log2(1+SNR), wherein SNR indicates signal-to-noise ratio end to end；
Keep network throughput maximum, signal-to-noise ratio maximizes formula expression to system end to end are as follows:
Wherein, hrdIndicate channel of the relay node to destination node, wrIndicate the second wave beam forming vector of relay node, hsrTable
Show channel of the source node to relay node, wsIndicate the first wave beam forming vector of source node,Indicate that destination node receives day
The variance of additive noise at line,Indicate the variance of the additive noise at relay node receiving antenna；hrrIndicate relay node
Remaining interference channel after being eliminated by time domain self-interference, PSIndicate the transmission power of source node, EsIt indicates in each communication block
The gross energy that source node receives, EsExpression formula are as follows:Wherein 0
< η≤1 indicates the efficiency of energy collection of source node, and T indicates the duration of each communication block, PmIndicate the transmission of relay node
Power；
By wrIt is decomposed into wr=arNrvr, wherein arIndicate the power amplification factor, vrIndicate wave beam dominant vector, NrExpression one full
Sufficient hrrNr=0 HeMatrix, the maximization formula (1) is transformed into as a result:
In the case where guaranteeing feasibility, arOptimal solution are as follows:
By arOptimal solution substitute into maximize formula (2), obtain maximize formula (3):
vrThe parameter being expressed as:
Wherein 0≤x≤1, It indicatesConjugate transposition,It indicatesConjugation turn
It sets, η indicates the energy conversion efficiency of energy collection circuit, ΠXIndicate the column space rectangular projection to X,It indicates to arrange to X empty
Between orthocomplement, orthogonal complement projection, therefore, maximize formula (3) be equivalent to:
Wherein f (x) is defined as:
W is obtained as a result,sGlobal optimum are as follows:
WhereinAndRespectively indicate hsr, hssConjugate transposition；
The second wave beam forming vector calculates acquisition as follows:
It willExpression formula substitute into maximize formula (3), obtain the Explicit functions of function f (x):
Wherein,
F (x) is a unimodal function, obtains the optimal solution of x, therefore v with dichotomyrOptimal solution are as follows:
In conjunction with arOptimal solution, obtain wrGlobal optimum be
4. a kind of transmission method of energy and information in wireless energy supply communication network, which is characterized in that be applied to wireless energy supply
The relay node of full duplex in communication network further includes the source node and purpose section of full duplex in the wireless energy supply communication network
Point, which comprises
Pass through preset the first signal for being only used for receiving the second receiving antenna reception source node transmission of signal；First letter
Number for source node using preset first wave beam forming vector to signal to be sent carry out wave beam forming acquisition and by default
Be only used for send signal the first transmission antenna send signal；
Wave beam forming is carried out to the first signal using preset second wave beam forming vector and obtains second signal；
The second signal is sent to source node and target section by preset the second transmission antenna for being only used for sending signal
Point, so that source node receives the second signal by preset the first receiving antenna for being only used for receiving signal, and from described
Energy is obtained in second signal.
5. the transmission method of a kind of energy and information in wireless energy supply communication network according to claim 4, feature
It is, the first wave beam forming vector are as follows:
Wherein, η indicates the energy conversion efficiency of energy collection circuit, PmIndicate the transmission power of relay node,
hrsIndicate channel of the relay node to source node, NrIt indicates one and meets hrrNr=0 HeMatrix, hrrIn expression
The remaining interference channel after node is eliminated by time domain self-interference, Respectively indicate hsr, hss
Conjugate transposition, hsrIndicate channel of the source node to relay node, hssIndicate the annular track of source node itself；
The second wave beam forming vector are as follows:
Wherein, arIndicate the power amplification factor, vrIndicate wave beam dominant vector, NrIt indicates one and meets hrrNr=0 He
Matrix.
6. the transmission method of a kind of energy and information in wireless energy supply communication network according to claim 4, feature
It is, the first wave beam forming vector calculates acquisition as follows:
The signal that relay node receives indicates are as follows: yr(n)=hsrwsxs(n)+hrrxr(n)+nr(n),
Wherein n indicates n-th of communication block, hsrIndicate channel of the source node to relay node, wsIndicate the first wave beam of source node
Figuration vector, xs(n) data that source node is sent, h are indicatedrrIndicate remaining after relay node is eliminated by time domain self-interference
Interference channel, xr(n) data that relay node is sent, n are indicatedr(n) noise signal that relay node receives is indicated；
The signal that relay node is sent indicates are as follows:
xr(n)=wryr(n- ω)=wrhsrwsxs(n-ω)+wrhrrxr(n-ω)+wrnr(n- ω),
Wherein, wrIndicate that the second wave beam forming vector of relay node, ω indicate that relaying is the time of node processing information, yr(n-
It ω) indicates in the signal that n- ω this moment relay node receives, hsrIndicate channel of the source node to relay node, wsIt indicates
First wave beam forming vector of source node, ω indicate relay node processing delay, xs(n- ω) is indicated in this time source of n- ω
The information that node is sent, xr(n- ω) indicates the data sent in this moment relay node of n- ω, nr(n- ω) indicate n- ω this
It is engraved in the additive noise of relay node for the moment；
Substitute into hrrwr=0, the signal that relay node is sent indicates are as follows:
xr(n)=wrhsrwsxs(n-ω)+wrnr(n-ω)；
The signal that destination node receives indicates are as follows:
Wherein, Indicate the noise of destination node；
The signal that source node receives indicates are as follows:
ys(n)=hsswsxs(n)+hrsxr(n)+ns(n)
=hsswsxs(n)+hrswrhsrwsxs(n-ω)+hrswrnr(n-ω)+ns(n),
Wherein, xs(n) data that source node is sent, x are indicateds(n- ω) indicates the information sent in this moment source node of n- ω,
nr(n- ω) indicates additive noise of this moment of n- ω in relay node, ns(n) noise signal that source node receives is indicated；
The gross energy that source node obtains in each communication block indicates are as follows:
Wherein, 0 < η≤1 indicates the efficiency of energy collection of source node, and T represents the duration of each communication block,Indicate relaying
The variance of additive noise at node receiving antenna；
Network throughput indicates are as follows: R=log2(1+SNR), wherein SNR indicates signal-to-noise ratio end to end；
Keep network throughput maximum, signal-to-noise ratio maximizes formula expression to system end to end are as follows:
Wherein, hrdIndicate channel of the relay node to destination node, wrIndicate the second wave beam forming vector of relay node, hsrTable
Show channel of the source node to relay node, wsIndicate the first wave beam forming vector of source node,Indicate that destination node receives day
The variance of additive noise at line,Indicate the variance of the additive noise at relay node receiving antenna；hrrIndicate relay node
Remaining interference channel after being eliminated by time domain self-interference, PSIndicate the transmission power of source node, EsIt indicates in each communication block
The gross energy that source node receives, EsExpression formula are as follows:Wherein 0
< η≤1 indicates the efficiency of energy collection of source node, and T indicates the duration of each communication block, PmIndicate the transmission of relay node
Power；
By wrIt is decomposed into wr=arNrvr, wherein arIndicate the power amplification factor, vrIndicate wave beam dominant vector, NrExpression one full
Sufficient hrrNr=0 HeMatrix, the maximization formula (1) is transformed into as a result:
In the case where guaranteeing feasibility, arOptimal solution are as follows:
By arOptimal solution substitute into maximize formula (2), obtain maximize formula (3):
vrThe parameter being expressed as:
Wherein 0≤x≤1, It indicatesConjugate transposition,It indicatesConjugation turn
It sets, η indicates the energy conversion efficiency of energy collection circuit, ПXIndicate the column space rectangular projection to X,It indicates to arrange to X empty
Between orthocomplement, orthogonal complement projection, therefore, maximize formula (3) be equivalent to:
Wherein f (x) is defined as:
W is obtained as a result,sGlobal optimum are as follows:
WhereinAndRespectively indicate hsr, hssConjugate transposition；
The second wave beam forming vector calculates acquisition as follows:
It willExpression formula substitute into maximize formula (3), obtain the Explicit functions of function f (x):
Wherein,
F (x) is a unimodal function, obtains the optimal solution of x, therefore v with dichotomyrOptimal solution are as follows:
In conjunction with arOptimal solution, obtain wrGlobal optimum be
7. a kind of transmitting device of energy and information in wireless energy supply communication network, which is characterized in that be applied to wireless energy supply
The source node of full duplex in communication network further includes the relay node and purpose section of full duplex in the wireless energy supply communication network
Point, described device include:
First wave beam forming unit, for obtaining signal to be sent, using preset first wave beam forming vector to letter to be sent
Number carry out wave beam forming obtain the first signal；
First transmission unit, for the first signal to be sent to by preset first transmission antenna for being only used for sending signal
After node, so that relay node receives first signal by preset the second receiving antenna for being only used for receiving signal；
First receiving unit, for receiving the first signal by preset the first receiving antenna for being only used for receiving signal, from the
Energy information is obtained in one signal；
Second receiving unit, for receiving the second signal sent by relay node by first receiving antenna, from second
Energy information is obtained in signal；The second signal are as follows: the relay node uses preset second wave beam forming vector pair
First signal carries out wave beam forming acquisition, and is sent to by preset the second transmission antenna for being only used for sending signal
The signal of destination node and source node.
8. a kind of transmitting device of energy and information in wireless energy supply communication network, which is characterized in that be applied to wireless energy supply
The relay node of full duplex in communication network further includes the source node and purpose section of full duplex in the wireless energy supply communication network
Point, described device include:
Third receiving unit, for receiving that source node is sent by preset the second receiving antenna for being only used for receiving signal
One signal；First signal is that source node uses preset first wave beam forming vector to carry out wave beam forming to signal to be sent
Signal that is obtaining and being sent by preset the first transmission antenna for being only used for transmission signal；
Second wave beam forming unit is obtained for carrying out wave beam forming to the first signal using preset second wave beam forming vector
Second signal；
Second transmission unit, for being sent the second signal by preset the second transmission antenna for being only used for sending signal
To source node and destination node, so that source node receives described the by preset the first receiving antenna for being only used for receiving signal
Binary signal, and energy is obtained from the second signal.
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| CN107104688B (en) * | 2017-03-20 | 2019-04-30 | 西安空间无线电技术研究所 | A kind of single-frequency strong jamming inhibition system applied to portable communications system |
| CN110418286B (en) * | 2018-04-28 | 2020-09-29 | 北京邮电大学 | Communication method and device for information and energy cooperative transmission, unmanned aerial vehicle and system |
| CN108834049B (en) * | 2018-06-15 | 2020-09-11 | 广东工业大学 | Wireless energy supply communication network and method and device for determining working state of wireless energy supply communication network |
| CN110167125B (en) * | 2019-05-23 | 2021-02-19 | 北京邮电大学 | Farmland communication method and device |
| CN111385011B (en) * | 2019-06-20 | 2022-08-02 | 南京邮电大学 | Wireless power supply relay network system based on full duplex and optimization method |
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