CN105897321B - It is a kind of that energy signal of communication method of reseptance and receiver are wirelessly taken based on time slot allocation - Google Patents
It is a kind of that energy signal of communication method of reseptance and receiver are wirelessly taken based on time slot allocation Download PDFInfo
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- CN105897321B CN105897321B CN201610464713.2A CN201610464713A CN105897321B CN 105897321 B CN105897321 B CN 105897321B CN 201610464713 A CN201610464713 A CN 201610464713A CN 105897321 B CN105897321 B CN 105897321B
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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
- H04B7/0413—MIMO systems
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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
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
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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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The present invention provide it is a kind of based on time slot allocation wirelessly take can signal of communication method of reseptance and receiver, be related to wireless communication receiver field.It is rough for the resource allocation of rate and energy in receiver algorithm in order to solve the prior art, the ineffective problem of receiver, the present invention is from signal acquisition large-scale fading coefficient to be received, transmitting signal power, noise power, channel gain and antenna number；Optimal threshold value is determined about the functional relation and optimization function of average collection energy value and average achievable rate value according to aforementioned parameters and obtains optimal threshold value；Judged according to optimal threshold value, and controls energy acceptance component and carry out energy acceptance or control information receiving parts progress information reception.Receiver provided by the invention includes thresholding switching module, is received for controlling switching energy acceptance or information, function is realized based on method above-mentioned.The present invention is designed suitable for wireless portable communications system receiver.
Description
Technical field
The present invention relates to wireless communication receiver fields, more particularly to wirelessly taking can signal of communication method of reseptance.
Background technique
Current era, radio communication service explosive growth, network large-scale, communication equipment diversification.Such as it senses
Many energy constraint networks such as device network, power consumption is low, but because its network size is big, there are difficult wiring, sustainability differences etc.
Problem.
Radiofrequency signal carries information and energy simultaneously, and (Simultaneous Wireless can be communicated by wirelessly taking
Information and Power Transfer, SWIPT) technology can use the energy and surrounding space carried in signal
In radio frequency energy be receiver charge, receiver can be achieved at the same time information transmission with two kinds of function of collection of energy
Energy.But for same receiver, limited due to receiving signal energy, energy and information rate are two kinds of contradictory demands,
It cannot meet simultaneously.One entire timeslots is divided into two sections not equal of front and back by traditional period handoff algorithms, and proportionality coefficient is by system
It determines, does not consider the time-varying element such as channel gain, multipath fading in algorithm design, thus its performance is poor.With reference to figure
5, wherein straight line portion is the period handoff algorithms of the prior art, it is seen that when average collection energy is 40 μ W, it is existing
The average achievable rate for having technology is 0.32bps/Hz；When average achievable rate is 0.4bps/Hz, the average receipts of the prior art
Collection energy is 33 μ W.That is, wirelessly taking the money in energy signal of communication method of reseptance for rate and energy in the prior art
Source distribution is excessively rough, it is difficult to meet simultaneously, cause resource allocation unreasonable, reduce operation of receiver efficiency.Therefore, it is necessary to
A kind of new signal of communication method of reseptance realizes the compromise of energy and rate by reasonable resource allocation.
Summary of the invention
The present invention can signal of communication method of reseptance there are resource allocations rough, operation of receiver in order to solve existing wirelessly take
The problem of low efficiency, and then provide a kind of wirelessly taking for the receiver based on time slot allocation and signal of communication method of reseptance and can connect
Receipts machine.
It wirelessly takes energy signal of communication and precoding is carried out by random wave bundle figuration technology, pre-coding matrix is by channel matrix h
It carries out singular value decomposition to obtain, and meets independent same distribution, wirelessly taking for the receiver based on time slot allocation can signal of communication
Method of reseptance the following steps are included:
Step 1: from reception signal acquisition large-scale fading coefficient θ, transmitting signal power P, noise power σ2, channel increase
Beneficial H and antenna number Nt, the signal to be received carries energy and information, wherein the channel gain H and channel matrix h
Meet
Step 2: according to the large-scale fading coefficient θ, transmitting signal power P, noise power σ2, channel gain H, day
Line number NtDetermine optimal threshold valueRespectively about average collection energy value and the functional relation of average achievable rate value；
Step 3: optimization function is determined according to the functional relation；
Step 4: optimal threshold value is acquired according to the optimization function
Step 5: being judged according to the optimal threshold value, and is controlled energy acceptance component according to judging result and carried out
Energy acceptance or control information receiving parts carry out information reception.
The present invention also provides a kind of receiver, the receiver includes thresholding switching module, the thresholding switching module
It is received for controlling switching energy acceptance or information, the function of thresholding switching module is realized based on the above method.
The method of the present invention has the technical effect that, according to large-scale fading coefficient, the transmitting signal obtained from signal of communication
Power, noise power, channel gain and antenna number come calculate more accurately averagely achievable rate and averagely collect energy.
And it when being applied to specific energy constraint type receiver, can achieve higher information rate, be applied to specific rate
When constrained receiver, more energy can be collected.With reference to Fig. 5, it can be seen that when average collection energy is 40 μ W, put down
Equal achievable rate is 0.37bps/Hz, is higher by 0.05bps/Hz compared with prior art；When average achievable rate is 0.4bps/Hz
When, averagely collection energy is 38bps/Hz, is higher by 5 μ W compared with prior art.That is, the present invention is in average collection energy range
Between be in 15 μ W to 65 μ W when, highest is higher by 0.05bps/Hz than prior art effect；0 is in average achievable rate section
When to 0.6bps/Hz, highest is higher by 5 μ W than prior art effect.
Detailed description of the invention
Fig. 1 is the flow chart of the invention that wirelessly take energy signal of communication method of reseptance based on time slot allocation；
Fig. 2 is the transmitting terminal of wireless portable communications system and the structural schematic diagram of receiving end；
Fig. 3 is the algorithm flow chart that optimal threshold value is solved with dichotomy；
Fig. 4 is to carry out received flow chart according to threshold value；
Fig. 5 is the comparison diagram of period handoff algorithms Yu thresholding handoff algorithms；
Fig. 6 is contrast difference's figure of energy constraint type receiver and rate-constrained type receiver；
Fig. 7 is the schematic diagram of the invention that wirelessly take energy signal of communication method of reseptance based on time slot allocation.
Specific embodiment
Specific embodiment 1: wirelessly taking for the receiver based on time slot allocation of present embodiment can signal of communication reception
Method wirelessly takes energy signal of communication by random wave bundle figuration technology and carries out precoding, and pre-coding matrix is carried out by channel matrix h
Singular value decomposition obtains, and meets independent same distribution, comprising the following steps:
In step 1, from reception signal acquisition large-scale fading coefficient θ, transmitting signal power P, noise power σ2, letter
Road gain H and antenna number Nt, the signal carrying energy to be received and information, channel gain H and channel matrix h meet
In step 2, according to the large-scale fading coefficient θ, transmitting signal power P, noise power σ2, channel gain
H, antenna number NtDetermine optimal threshold valueRespectively about average collection energy value and the functional relation of average achievable rate value
Formula；
In step 3, optimization function is determined according to the functional relation；
In step 4, optimal threshold value is acquired according to the optimization function
In step 5, judged according to the optimal threshold value, and energy acceptance component is controlled according to judging result
It carries out energy acceptance or control information receiving parts carries out information reception.
Specific embodiment 2: the present embodiment is different from the first embodiment in that:
Calculate average achievable rate R specifically:
Calculate the average value Q for collecting energy specifically:
Wherein a is integration variable.
Above-mentioned formula (1) and formula (2) are obtained by following derivation process:
Signal of communication carries out precoding to signal is sent using random wave bundle figuration technology by the transmitting terminal of radiofrequency signal, in advance
Encoder matrix carries out SVD decomposition (i.e. singular value decomposition) by channel matrix h and obtains.It sends signal to be made of several resource blocks, often
A resource block is made of several time slots, and the pre-coding matrix of k-th of time slot is Φ (k)=[Φ1(k) Φ2(k) … ΦN
(k)], N=NtFor the antenna number of transmitting terminal.Pre-coding matrix should meetWhereinFor unit
Matrix, andI.e. each pre-coding matrix meets independent same distribution, whereinCN indicates zero-mean Cyclic Symmetry Gaussian Profile.Transmitting terminal can by control instruction, dedicated lead
The occurrence h of receiving end channel matrix is informed in frequency verifying or dedicated pilot (channel) estimation.
The normalization channel energy that any time slot k receives signal can be calculated according to formula (3):
Wherein, a (k)=ΦT(k) h, k=1,2 ..., K, K are total timeslot number in a resource block.
For k-th of time slot, according to A (k) value selective receiver mode, wherein receiver mode includes energy receiver
Mode and intelligence receiver mode, by adjusting predetermined threshold valueTo obtain the folding of ceiling capacity collection and information rate
In.Wherein predetermined threshold valueIt can be obtained by optimization function.
In receiver mode selection course, the indicator function of k-th of submodule model selection is arranged as shown in formula (4):
Wherein, A (k) is k-th of non-slotted channel energy,For predetermined threshold value.Since the sensitivity of energy receiver is remote
Lower than the sensitivity of intelligence receiver, therefore, what formula (4) indicated is to carry out energy when receiving signal energy and being higher than threshold value to connect
It receives, carries out information reception when being lower than thresholding.
Receiving end receives signal and can be expressed as:
In formula (5), θ indicates that signal large-scale fading coefficient, X are to send signal phasor, and y (k) is to receive signal, and z (k) is
White Gaussian noise.If transmitting signal power is P, σ2For noise power, L is precoding code length, and E () is operation of averaging, then:
As ρ (k)=1, the maximum achievable rate of time slot k is represented by
As ρ (k)=0, the normalization of time slot k collects energy and is
Since a (k) is the Gaussian random variable obeyed independent identically distributed zero-mean and have common variance H,For the χ with n freedom degree2Stochastic variable, according to χ2Distribution freedom degree additive property obtains n=2Nt, σ2=
H/2Nt.According to defining to obtain its probability density function (Probability of (H is a constant) under given channel gain H
Density Function, PDF) be
Cumulative distribution function (Cumulative Distribution Function, CDF) is expressed as
Wherein, Γ (x) is gamma function, is defined asIf timeslot number
K → ∞, then according to χ2The probability density function of distribution can be (also referred to as average to receive by the average value for collecting energy in each resource block
Collection energy value) and average achievable rate can be expressed as antenna number Nt, thresholdingAnd the function of channel gain H, i.e.,WithRespectively as shown in formula (10) and (11).
It can thus be concluded that the average achievable rate that average each time slot obtains in each resource block and averagely collection energy.
It is illustrated below in conjunction with Fig. 2:
Information source is converted to channel coding with random wave bundle figuration technology by transmitting terminal Tx, has hair generating through ovennodulation
The precoding of signal phasor X is sent, precoding carries out singular value decomposition by channel matrix h and is sent to receiving end, and receiving end obtains
Signal Y is received, wherein T is time slot, and method of reseptance according to the present invention obtains optimal threshold value, is judged according to optimal threshold value
It needs to carry out energy acceptance or information receives, receive, then needed using demodulation channel decoding process if information.
Other steps and parameter are same as the specific embodiment one.
Specific embodiment 3: the present embodiment is different from the first and the second embodiment in that: receiver may include
Energy constraint type receiver and rate-constrained type receiver, when the receiver is energy constraint type receiver, described
Optimal threshold value is acquired according to optimization functionSpecifically:
Wherein qthMinimum energy required for working normally for the receiver, Γ is gamma function；
When the receiver is rate-constrained type receiver, " optimal threshold value is acquired according to optimization function" specific
Are as follows:
Wherein γthMinimum speed limit needed for working normally for receiver, Γ is gamma function.
Other steps and parameter are the same as one or two specific embodiments.
Specific embodiment 4: unlike one of present embodiment and specific embodiment one to three: formula (12)
Method for solving is dichotomy iterative solution, and wherein the thresholding upper limit is max (A (k)), and solution interval upper bound initial value is the thresholding
Upper limit max (A (k)), solution interval lower bound initial value are 0, are let according to the preset solving precision of system requirements, receive equipment
There is specific system consumption energy value, the system consumption energy value is q above-mentionedth.Dichotomy iterative solution specifically includes
Step A to step C, the specific algorithm flow chart in conjunction with Fig. 3 are illustrated:
Step A: this solution interval upper bound A is detectedupWith lower bound AdownDifference whether be less than or equal to solving precision let,
If so, optimum gate is limited to solution interval upper bound Aup, if it is not, then by the threshold value of this iterationIt is assigned a value of the solution interval upper bound
AupWith lower bound AdownMean value；
Step B: calculating according to threshold value and averagely collect energy value Q, if averagely collecting energy value is greater than system consumption energy
Value qth, then by solution interval upper bound AupIt is assigned a value of the threshold value of this iterationIf averagely collecting energy value is lower than system consumption
Energy value qth, then by solution interval lower bound AdownIt is assigned a value of the threshold value of this iterationAnd step A is executed, until solving area
Between upper bound AupWith lower bound AdownDifference be less than or equal to solving precision let；
Step C: the average collection energy value and average achievable rate met under the conditions of solving precision let is calculated.
The above process, which carries out operation for energy constraint type receiver, similarly also has similar process for formula (13),
Difference is that receiver is rate-constrained type receiver, by qthIt is replaced into minimum speed limit required when receiver works normally
γth, and average collection energy value is replaced into average achievable rate and γ compared with system consumption energy valuethComparison.
Other steps and parameter are identical as one of specific embodiment one to three.
Specific embodiment 5: can elaborate in conjunction with Fig. 4.Present embodiment and specific embodiment one to four it
Unlike one: being judged according to optimal threshold value specifically: carry out energy when receiving signal energy and being higher than optimal threshold value
Amount receives, and carries out information reception when being lower than optimal threshold value.Flow chart in Fig. 4 corresponds to formula (4), judges k-th of time slot
Channel energy A (k) and threshold valueSize relation, ifThat is ρ=1 then carries out information reception, ifThat is ρ=0 then carries out energy acceptance.
Other steps and parameter are identical as one of specific embodiment one to four.
Specific embodiment 6: elaborating in conjunction with Fig. 5 to present embodiment:
Fig. 5 is the contrast difference of period handoff algorithms and thresholding handoff algorithms in the prior art.Thresholding handoff algorithms are
For signal of communication method of reseptance of the invention.Straight line is period handoff algorithms in figure, and curve is thresholding handoff algorithms, then the two is handed over
The right side of point c, for identical reception energy Q, the average achievable rate of thresholding handoff algorithms of the invention is higher；Similarly,
For identical average achievable rate, of the invention to receive energy Q higher, therefore may determine that, algorithm of the invention is being handed over
The performance of part is better than the prior art between point c and intersection point a.The curve tangent line of thresholding handoff algorithms is threshold valueIt will
Threshold valueBe denoted as τ with the ratio of the slope of period handoff algorithms function, can by τ increase or reduce judge it is of the invention
The performance of algorithm in practical applications.
Specific embodiment 7: elaborating in conjunction with Fig. 6 and Fig. 7 to present embodiment:
Fig. 6 is the contrast difference of the energy constraint type receiver and rate-constrained type receiver using method of the invention
Figure.Energy constraint type receiver is the receiver for having minimum energy requirement in normal work, rate-constrained type receiver be
There is the receiver of minimum speed limit requirement when normal work.It can be seen from the figure that optimum thresholding not only meets averagely collection energy Q
>Qth, it is highest also to make to obtain average achievable rate in all thresholdings for meeting condition, as shown in upper 3 points of straight line (a), represents phase
Simulation result under co-channel conditions.Similarly, for rate-constrained type receiver, as shown in upper 3 points of straight line (b), door is compared
Limit 1 is not able to satisfy demand of the system to information rate, although and compare that 2 Mean Speed of thresholding is higher, its average energy collected
Measure lower, obviously its performance is less better compared with optimum thresholding under being to maximize the background for collecting energy in majorized function, thus can
See, optimum thresholding is meeting R > RthUnder the conditions of collect energy it is most.
Fig. 7 is the schematic diagram for wirelessly taking energy signal of communication method of reseptance of the receiver of the invention based on time slot allocation,
Wherein Ptot indicates the energy summation of transmitting signal, can be by the signal energy phase of energy receiver and rate-constrained receiver
Add to obtain, it is seen that when curve is higher than thresholdingWhen be light areas, expression carry out energy acceptance at this time, work as curve
Lower than thresholdingWhen be darker regions, indicate at this time carry out information reception.
Specific embodiment 7: the present invention also wraps unlike one of present embodiment and specific embodiment one to six
A kind of receiver is included, the receiver includes thresholding switching module, and the thresholding switching module is for controlling switching energy acceptance
Or information receives, the function of thresholding switching module is the method based on previous embodiment to realize.
Claims (4)
1. it is a kind of based on time slot allocation wirelessly take can signal of communication method of reseptance, it is described wirelessly take can signal of communication pass through it is random
Beamforming technique carries out precoding, and pre-coding matrix carries out singular value decomposition by channel matrix h and obtains, and meets independent same
Distribution, which is characterized in that the described method comprises the following steps:
Step 1: from reception signal acquisition large-scale fading coefficient θ, transmitting signal power P, noise power σ2, channel gain H with
And antenna number Nt, the reception signal carries energy and information, wherein the channel gain H and channel matrix h meets
Step 2: according to the large-scale fading coefficient θ, transmitting signal power P, noise power σ2, channel gain H, antenna number Nt
Determine optimal threshold valueRespectively about average collection energy value and the functional relation of average achievable rate value；
Step 3: optimization function is determined according to the functional relation；
Step 4: optimal threshold value is acquired according to the optimization function
Step 5: being judged according to the optimal threshold value, and is controlled energy acceptance component according to judging result and carried out energy
It receives or control information receiving parts carries out information reception；
Optimal threshold value described in step 2Functional relation about average achievable rate value specifically:
Wherein, a is integration variable, and the probability density function under given channel gain H is
Optimal threshold value described in step 2About the average functional relation for collecting energy value specifically:
Wherein Γ is gamma function；
It is described that optimum gate is acquired according to optimization function when the receiver is energy constraint type receiver in step 4
Limit valueSpecifically:
Wherein qthMinimum energy required for working normally for the receiver, A (k) are the channel energy of k-th of time slot；
It is described that optimum gate is acquired according to optimization function when the receiver is rate-constrained type receiver in step 4
Limit valueSpecifically:
Wherein γthMinimum speed limit needed for being worked normally for the receiver.
2. according to claim 1 wirelessly take energy signal of communication method of reseptance based on time slot allocation, which is characterized in that institute
The method for solving of formula (12) is stated as dichotomy iterative solution, wherein the thresholding upper limit is max (A (k)), and the solution interval upper bound is initial
Value is the thresholding upper limit, and it is let according to the preset solving precision of system requirements that solution interval lower bound initial value, which is 0, described to connect
Receipts machine has specific system consumption energy value, dichotomy iterative solution specifically includes the following steps:
Step A: whether the difference for detecting this solution interval upper bound and lower bound is less than or equal to the solving precision let, if so,
Optimum gate is limited to the solution interval upper bound, if it is not, then by the threshold value of this iteration be assigned a value of the solution interval upper bound with
The mean value of lower bound；
Step B: calculating according to the threshold value and averagely collect energy value, if the energy value of averagely collecting disappears greater than the system
Consume energy magnitude, then the solution interval upper bound is assigned a value of to the threshold value of this iteration, if the energy value of averagely collecting is lower than
The solution interval lower bound is then assigned a value of the threshold value of this iteration, and executes step A by the system consumption energy value, directly
The difference in the upper bound and lower bound to solution interval is less than or equal to the solving precision let；
Step C: the average collection energy value and average achievable rate met under the conditions of the solving precision let is calculated.
3. according to claim 1 or 2 wirelessly take energy signal of communication method of reseptance based on time slot allocation, feature exists
In being judged described in step 5 according to optimal threshold value specifically: when receiving signal energy and being higher than optimal threshold value into
Row energy acceptance carries out information reception when being lower than optimal threshold value.
4. a kind of receiver, which is characterized in that the receiver includes thresholding switching module, and the thresholding switching module is for controlling
System switching energy acceptance or information receive, and the function of thresholding switching module is based on if any one of claims 1 to 3 is come real
Existing.
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| CN106850028B (en) * | 2017-02-21 | 2020-06-09 | 哈尔滨工业大学 | Combined beam forming method based on SWIPT system |
| CN106972880B (en) * | 2017-03-31 | 2020-08-28 | 哈尔滨工业大学 | Low-complexity joint precoding method for transmitting end and relay based on SWIPT technology |
| CN110167171A (en) * | 2018-03-19 | 2019-08-23 | 西安电子科技大学 | A kind of method and system of wireless power communication network resource distribution |
| CN109041232A (en) * | 2018-07-17 | 2018-12-18 | 广东工业大学 | It is a kind of based on wirelessly taking the resource allocation methods and device that can be communicated |
| CN112073100B (en) * | 2020-09-07 | 2021-12-31 | 郑州大学 | Millimeter wave wireless energy-carrying safe communication method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301977A (en) * | 2014-09-22 | 2015-01-21 | 西安交通大学 | Transmission method in SWIPT system under interference channel |
| CN104393956A (en) * | 2014-11-26 | 2015-03-04 | 北京邮电大学 | Maximizing and speed rate pre-coding method for simultaneous wireless information and power transfer system |
| CN105611633A (en) * | 2015-10-23 | 2016-05-25 | 哈尔滨工业大学 | Receiver resource distribution method based on SWIPT wave beam forming method |
| CN105680920A (en) * | 2015-12-31 | 2016-06-15 | 电子科技大学 | Method for optimizing throughput of multiuser multi-antenna digital-energy integrated communication network |
-
2016
- 2016-06-23 CN CN201610464713.2A patent/CN105897321B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301977A (en) * | 2014-09-22 | 2015-01-21 | 西安交通大学 | Transmission method in SWIPT system under interference channel |
| CN104393956A (en) * | 2014-11-26 | 2015-03-04 | 北京邮电大学 | Maximizing and speed rate pre-coding method for simultaneous wireless information and power transfer system |
| CN105611633A (en) * | 2015-10-23 | 2016-05-25 | 哈尔滨工业大学 | Receiver resource distribution method based on SWIPT wave beam forming method |
| CN105680920A (en) * | 2015-12-31 | 2016-06-15 | 电子科技大学 | Method for optimizing throughput of multiuser multi-antenna digital-energy integrated communication network |
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