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40results about How to "Minimize the total transmit power" patented technology
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Transmitting and receiving device and method for continuous outer-loop power control while in DTX mode in a CDMA mobile communication system
InactiveUS6950632B1Shorten the timeMinimize the total transmit powerEnergy efficient ICTPower managementPower controllerSignal-to-noise ratio (imaging)
A device and method for continuous outer-loop power control on a physical channel which transmits only power control bits and no data while in discontinuous transmission (DTX) mode in a CDMA mobile communication system is disclosed. In the power controlling device according to one aspect of the present invention, a frame error detector detects an error from a frame of predetermined length and generates an error signal indicating whether an error has been generated. A closed-loop power controller compares a threshold with the signal-to-noise ratio (SNR) in each power control group (PCG) in a plurality of periods of the frame and generates power control information according to the comparison result. An outer-loop power controller increases the threshold in order to generate power control information that commands a power increase in response to an error signal indicating the existence of a frame error, and decreases the threshold in order to generate power control information that commands a power decrease in response to an error signal indicating the absence of a frame error. An offset controlling unit, which is connected to the outer-loop power controller, receives gating information about the gated transmission of data in a frame at a predetermined rate, and generates an offset signal, which indicates an offset corresponding to a changed gating rate if the gating rate is changed.
Owner:SAMSUNG ELECTRONICS CO LTD
Frequency domain unscheduled transmission in a TDD wireless communications system
InactiveUS20070097928A1Minimize the total transmit powerReduce distractionsCriteria allocationInter user/terminal allocationSystem capacityEngineering
An apparatus and method exploits a variable frequency response of a radio channel in a time division duplex wireless communication system such that for unscheduled uplink transmissions, the transmission power required for correct reception of the data is minimized. The degree of interference caused to other users in both the serving cell and the neighbor cells is correspondingly reduced and hence system capacity is improved.
Owner:SONY CORP
Adaptive antenna base station apparatus
ActiveUS7117016B2Suppress interferenceReduce amountSpatial transmit diversityModulated-carrier systemsFrequency conversionDelayed time
An adaptive antenna base station apparatus comprises an array antenna including N (N being a natural number) antenna elements; N reception sections for respectively performing orthogonal detection of high-frequency signals, respectively received by the antenna elements, after frequency conversion; N×M despreading sections for performing despreading operations, corresponding to delay times of M (M being a natural number) path components included in output signals of the reception sections; M correlation computing sections for performing correlations among the antenna elements for each path; a correlation combining section for combining output signals of the correlation computing sections; and a DOA estimating section for estimating a direction of arrival (DOA) by using an output of the correlation combining section. This can ensure collective estimation of DOAs of M path components, thereby reducing the amount of computation of estimating the DOAs for plural paths and the cost for the apparatus.
Owner:PANASONIC CORP
Robust beam forming method for intelligent reflector-assisted multi-cell coordinated multi-point transmission
ActiveCN113225108AMeet service quality requirementsSatisfy Power ConstraintsSite diversitySpatial transmit diversityControl theoryOptimization problem
The invention relates to a robust beam forming method for intelligent reflector-assisted multi-cell coordinated multipoint transmission, which comprises the following steps: firstly, constructing a joint optimization problem of base station transmitting beam forming and intelligent reflector shift by adopting a bounded error model, simultaneously satisfying base station power constraint and user rate constraint, and minimizing total transmitting power; then, decoupling the problem into two problems of base station transmitting beam forming and intelligent reflecting surface shifting, converting the base station beam forming problem into a convex optimization problem by adopting an S-Procedure theorem and convex semi-definite relaxation, converting the intelligent reflecting surface shifting problem into an optimization problem with a clear target, and providing an algorithm based on a dichotomy; and finally, alternately iterating the transmitting beamforming problem and the phase shift problem until the optimization target is converged. According to the method, the total transmitting power can be minimized under the condition that the base station power constraint and the user target rate constraint are met, and the system performance can still be ensured even under the worst channel estimation condition.
Owner:BEIJING UNIV OF POSTS & TELECOMM
A resource allocation method based on transmit power minimization in an energy-carrying multi-carrier NOMA system
InactiveCN109861866AMinimize the total transmit powerReduce transmit powerTransmission monitoringData switching networksQuality of serviceTransmitted power
The invention discloses a resource allocation method based on transmitting power minimization in an energy-carrying multi-carrier NOMA system. The method comprises the following steps: (1) establishing a network model of the energy-carrying multi-carrier NOMA system; (2) establishing a mathematical model of the joint resource allocation scheme based on the minimum transmitting power, wherein the mathematical model comprises carrier scheduling, power allocation and time switching coefficients; And (3) designing and analyzing the algorithm of the joint resource allocation scheme based on the genetic algorithm. According to the invention, a wireless energy carrying technology (SWIPT) is innovatively provided to be applied to a multi-carrier NOMA (Non-Orthogonal Multiple Access) system; the mathematical optimization problem of the network model based on the minimum transmitting power is established; A joint resource allocation strategy is designed by applying a genetic algorithm, so that the transmitting power of the energy-carrying multi-carrier NOMA system is minimized while the requirement of a user on quality of service (QoS) is met.
Owner:SOUTH CHINA UNIV OF TECH
Method for solving downlink NOMA (Non-orthogonal Multiple Access) minimized power of visible light communication system
InactiveCN107342811AIncrease speedGuaranteed service qualityClose-range type systemsQuality of serviceClosed expression
The invention discloses a method for solving downlink NOMA (Non-orthogonal Multiple Access) minimized power of a visible light communication system. According to the method, an NOMA system model is established, a downlink NOMA user rate closed expression in the visible light communication is derived according to features of signals in the visible light communication system, the user quality of service is satisfied, and moreover, the transmitting power is minimized, so energy conservation and emission reduction demands in a mobile communication technology are satisfied. Compared with frequency division multiplexing, the method has the advantages that a user sum rate is maximized, moreover, the consumed transmitting power is minimum, and the user quality of service is ensured.
Owner:CHINA UNIV OF MINING & TECH
Seamless sending power adjusting method and system
InactiveCN1866999AMinimize the total transmit powerGuaranteed stabilityPower managementSupervisory/monitoring/testing arrangementsModem deviceData transmission
Owner:HUAWEI TECH CO LTD
IRS-NOMA system beam forming optimization method based on SDR
ActiveCN112929068AApplicable to uneven clustering scenariosRelaxed channel conditionsSpatial transmit diversityHigh level techniquesAlgorithmNoma
The invention relates to an IRS-NOMA system beam forming optimization method based on SDR, and belongs to the field of data processing. The method comprises the following steps: S1, allocating a beam to each of all users, and distinguishing different users according to the power; S2, establishing a system model and a QoS problem model; and S3, iteratively solving a beam forming vector and a phase shift matrix by using an alternative optimization idea. According to the invention, an NOMA downlink beam forming algorithm assisted by an intelligent reflecting surface is researched. Compared with a traditional NOMA system, the model provided by the invention has more loose requirements on channel conditions, and is suitable for more general user non-uniform clustering scenes. In order to improve the energy efficiency of the IRS-NOMA network, the invention provides a joint optimization algorithm based on SDR to minimize the transmitting power. Simulation results show that the SDR algorithm has significant advantages when the requirement for the target rate is high.
Owner:CHONGQING UNIV OF POSTS & TELECOMM
Intelligent reflector-assisted multi-cell robust joint transmission beam optimization method
PendingCN113315547AMeet the target rate requirementsMinimize the total transmit powerSite diversitySpatial transmit diversityTransmitted powerControl theory
The invention relates to an intelligent reflector-assisted multi-cell robust joint transmission beam optimization method, which comprises the following steps of: firstly, considering that an error exists in intelligent reflector-user link channel estimation, constructing an optimization model of joint multi-base station transmission beam forming and intelligent reflector shift, and considering the fairness of cell users, ensuring the minimum achievable rate of cell edge users according to the invention; secondly, due to variable height coupling, decomposing the problem into two problems of base station beam forming and intelligent reflecting surface shifting, converting the base station beam forming problem into a convex problem by adopting an S-Procedure theorem and convex semi-definite relaxation, and providing an iterative algorithm based on dichotomy to obtain an optimal solution of the intelligent reflecting surface shifting; finally, alternately solving the two problems until convergence. According to the method provided by the invention, the total transmitting power of the base station can be minimized under the condition that all possible channel errors are realized, and meanwhile, the minimum achievable rate requirement of the worst user is met.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Networking radar power and bandwidth joint optimization allocation method based on radio frequency stealth
PendingCN111323773AMinimize the total transmit powerImprove RF Stealth PerformanceRadio wave reradiation/reflectionRadio frequencyReal-time computing
The invention discloses a networking radar power and bandwidth joint optimization allocation method based on radio frequency stealth. The method comprises: determining the composition of a networkingradar system; taking the radar binary selection variable, the radar transmitting power and the signal bandwidth as independent variables, constructing a prediction Bayesian Cramer-Rao lower bound matrix of a target state estimation error, and taking an element corresponding to a target position component on a diagonal line of the prediction Bayesian Cramer-Rao lower bound matrix as a measurement index of target tracking precision; determining a target tracking precision threshold, and establishing a networking radar power and bandwidth joint optimization model based on radio frequency stealth;and solving the optimization model. According to the invention, constraint conditions such as data processing amount of a fusion center, prediction tracking precision of a target at the next moment and radar emission resources are satisfied. By taking minimization of the total transmitting power of the networking radar system as an optimization target, parameters such as radar selection, transmitting power and signal bandwidth in the multi-target tracking process are optimized, and the radio frequency stealth performance of the networking radar system during multi-target tracking is improved.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Symbiotic communication system multi-antenna multicast transmission method based on intelligent reflection surface
ActiveCN112532289ATransmit power minimizationSave base station transmit power and energyPower managementSpatial transmit diversityInternet of ThingsReceiver
The invention belongs to the technical field of wireless communication, and relates to a symbiotic communication system multi-antenna multicast transmission method based on an intelligent reflection surface. According to the symbiotic communication system multi-antenna multicast transmission method based on the intelligent reflection surface, the intelligent reflection surface sends own Internet of Things information symbols through multicast signals of a main system, and downlink multicast transmission from a base station to a main receiver can be enhanced through the intelligent surface; both the main receiver and the IoT receiver receive a direct link signal from the base station and a reflected signal from the smart surface. The invention further provides a method for jointly optimizing the active beamforming W of the base station end and the passive beamforming phi of the intelligent surface end, and minimization of the transmitting power of the base station is realized under thecondition of meeting the requirements of the signal to interference plus noise ratio of the main receiver and the signal to noise ratio of the IoT receiver. Through simulation verification, under thecondition that normal communication of the main system is not influenced, the transmitting power and energy of the base station are greatly saved, and the frequency spectrum and cost expenditure are not additionally increased.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA
united implementing method for node transmitting power and relay node position disposition of AF bidirectional relay communication system
ActiveCN105071840AMinimize the total transmit powerTransmit power advantagePower managementSite diversityChannel state informationCommunications system
The invention discloses a united implementing method for node transmitting power and relay node position disposition of an AF bidirectional relay communication system. The method adjusts the transmitting power of a network node and the position of a relay node in a united manner according to statistic channel state information and a system target rate by using a minimized system transmitting power as a goal and a system QoS requirement as a limited condition so as to minimize system total transmitting power while satisfying the system QoS requirement.
Owner:NANTONG UNIVERSITY
Optimal power control method for radar-communication integrated system based on radio frequency stealth
ActiveCN109672488AMinimize the total transmit powerImprove RF Stealth PerformancePower managementWave based measurement systemsTransmitted powerEngineering
The invention discloses an optimal power control method for a radar-communication integrated system based on radio frequency stealth. The radar-communication integrated system comprises M<T> transmitters, a radar receiver and a communication receiver. The method comprises the following steps: S1, characterizing target detection performance; S2, characterizing communication performance; S3, establishing an optimal power control model of the radar-communication integrated system according to a given communication rate threshold r<com>, a false alarm probability threshold delta<FA> and a target detection probability threshold delta<D> to obtain the optimal radar signal transmission power; S4, building a Lagrangian multiplier formula to obtain optimal communication signal transmission power; and S5, adding the optimal radar signal transmission power obtained in the step S3 and the optimal radar signal transmission power obtained in the step S4 to obtain the minimum total transmit power ofthe radar-communication integrated system. The optimal power control method improves the radio frequency stealth performance of the system.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Radar network power control method based on non-cooperative game under spectrum sharing
ActiveCN108260198AReduce transmit powerImprove Spectrum Sharing PerformancePower managementWave based measurement systemsFrequency spectrumCommunications system
The invention discloses a radar network power control method based on a non-cooperative game under spectrum sharing. The method comprises the steps of under the condition that a radar network system and a communication system work in a same frequency band, acquiring propagation losses between each radar and a target and each radar and the communication system and a RCS of the target with respect to each radar in the networking system according to priori knowledge; and then using minimization of transmitting power of each radar in the radar network system as a target, under the condition of meeting certain target detection performance and the maximum acceptable interference power threshold of the communication system, building a radar network power control model based on the non-cooperativegame under spectrum sharing, and solving the model via a distributed power iteration algorithm. According to the control method, the transmission power of each radar in the radar network system is reduced, and the spectrum sharing performance between the radar network and the communication system is enhanced.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Bit allocation and power control method for two-way relay system based on OFDM
ActiveCN106936555AMinimize the total transmit powerTotal Transmit Power AdvantagePower managementTransmission path divisionPower controlBandwidth allocation
The invention discloses a bit allocation and power control implementation method for an OFDM two-way relay system. The method comprises the following steps: by taking the minimization of the system transmitting power as the goal and taking the target rate of a source node as a limiting condition, simultaneously carrying out sub-carrier bit allocation and node transmitting power adjustment according to the channel state information. Thereby, the minimization of the total transmitting power of the system can be achieved on the basis of meeting the target rate of the source node.
Owner:NANTONG UNIVERSITY +1
Information processing method in family base station network
InactiveCN102857281ASuppresses cross-layer interferenceSuppress interferenceSpatial transmit diversityBaseband system detailsTelecommunicationsFamily based
The invention discloses an information processing method. According to the information processing method, a macro base station and a family base station send training sequences to a relay and a family user respectively, the relay and the family base station send training sequences to a macro user and the family user respectively, and estimation channels from the macro base station to the relay, from the family base station to the relay, from the macro base station to the family user, from the family base station to the family user, from the relay to the macro user, from the family base station to the macro user and from the relay to the family user can be obtained through channel estimation; the macro base station, the family base station and the relay calculate transmission beam forming matrixes of the macro base station, the family base station and the relay by using an iterative algorithm according to estimation channels; the macro base station and the family base station conduct linear processing on transmission signals and broadcast the transmission signals, the family base station user and the relay receive information, the relay conducts linear processing on the received information and broadcasts the received information, and the family base station conducts linear processing on newly transmitted signals and broadcasts the newly transmitted signals; and the macro user and the family user receive the transmission signals respectively. The method effectively restrains the cross-layer interference.
Owner:SHANGHAI JIAO TONG UNIV
Bidirectional relay system power distribution method based on AF (Amplify-and-Forward) mechanism
ActiveCN104837194AMinimize the total transmit powerTotal Transmit Power AdvantagePower managementSite diversityQuality of serviceTransmitted power
The invention discloses a bidirectional relay system power distribution method based on an AF (Amplify-and-Forward) mechanism, which is suitable for a bidirectional relay system based on the AF mechanism. According to the method, the system QoS (Quality of Service) requirement and transmitter peak transmitting power limit are taken as constraint conditions, and the target is to minimize the system total transmitting power. The transmitting power of a transmitter is dynamically adjusted by means of a channel statistical value according to the requirement of a source node on the data rate, so that the system total transmitting power is minimized under the condition that the system QoS requirement and the transmitter peak transmitting power limiting condition are met.
Owner:NANTONG UNIVERSITY
A radio communication system, a radio station, and a method of transmitting data
ActiveCN101023596AImprove estimation accuracyMinimize the total transmit powerPower managementMultiple modulation transmitter/receiver arrangementsCommunications systemTransmitted power
A radio communication system has a plurality of transmission formats available for transmitting data signals, and a pilot signal is transmitted during the transmission of data to enable channel estimation. The transmit power of the pilot signal is varied depending on the current transmission format of the data, and is reduced in the periods between data transmissions.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV
Beam forming optimization method and device for minimizing transmitting power of ultra-dense network
ActiveCN111132297AMinimize the total transmit powerReduce transmit powerPower managementSpatial transmit diversityQuality of serviceMacro base stations
The invention discloses a beam forming optimization method and device for minimizing the transmitting power of an ultra-dense network. According to the method disclosed in the invention, in an ultra-dense network with a macro base station and a plurality of small base stations, a user accesses a corresponding base station according to the position of the user; transmitting beam forming of a macrobase station and all small base stations is jointy optimized by constructing an optimization problem where QoS (Quality of Service) requirement of the user and the limitation of backhaul rates of the small base stations are takens as constraints and minimization of total transmitting power of the system is taken as a target. The optimization process comprises the following steps: firstly, introducing an intermediate variable; iteratively solving an optimization problem related to an intermediate variable, solving an SDP problem in each iteration process, obtaining a series of transmitting beam forming meeting the constraint of the original problem as alternative solutions by adopting Gaussian randomization on the basis of the optimal intermediate variable, and selecting a group of solutions with the minimum transmitting power as the optimal transmitting beam forming. Compared with a traditional zero-forcing transmission solution, the method is advantageous in that total transmittingpower can be remarkably reduced.
Owner:SOUTHEAST UNIV
Relay processing and power control joint optimization method for two-way relay network
InactiveCN105188123AExcellent energy efficiencyOptimal allocation of transmit powerPower managementTransmitted powerParallel computing
The invention provides a relay processing and power control joint optimization method for a two-way relay network. The relay processing and power control joint optimization method comprises: establishing a two-way relay network model, initializing user transmitting power Pk, establishing a relay processing matrix V of a relay node, updating the user transmitting power based on the relay processing matrix, calculating total transmitting power Ptotal, and repeating the steps, and according to the expression described in the specification, obtaining the optimal transmitting power and the optimal relay processing matrix of a user node. Joint design and optimization of relay processing and power control are achieved, on the condition of meeting a user signal to interference plus noise power ratio, the allocation of the transmitting power of the user node and the relay node is optimized, and the rely node processing matrix is jointly optimized, so that the energy efficiency of a two-way relay network system is optimal.
Owner:QINGDAO UNIV
Uplink transmission method for periodic URLLC service
ActiveCN110121212AMinimize the total transmit powerForming edge-adaptive optimization problemsHigh level techniquesWireless communicationChannel powerUplink transmission
The invention discloses an uplink transmission method for a periodic URLLC (Uniform Resource Location Link Control) service. The uplink transmission method comprises the following steps: 1) constructing a URLLC uplink transmission model; 2) constructing a URLLC service uplink transmission QoS guarantee mechanism based on a finite coding length theory; 3) by formulating a reasonable sub-channel-power joint distribution strategy, while the uplink transmission QoS of all devices in the system is guaranteed, the required total transmitting power is minimized, so that an edge adaptive optimizationproblem is constructed; and 4) respectively solving the edge adaptive optimization problem in the step 3) through a Kuhn-Munkres algorithm based on a weighted bipartite graph theory or a low-complexity algorithm based on greedy selection, and obtaining an optimal sub-channel-power distribution strategy, and completing uplink transmission of the periodic URLLC service according to the optimal sub-channel-power distribution strategy. The method can be suitable for uplink transmission of the periodic URLLC service.
Owner:XI AN JIAOTONG UNIV
Power optimized control and distribution method of mobile sites under high mobile environment
InactiveCN103987114ANo overflowMinimize the total transmit powerPower managementEnergy efficient ICTSignal-to-noise ratio (imaging)Distribution method
The invention discloses a power optimized control and distribution method of mobile sites under a high mobile environment, and aims at providing a power optimized control and distribution method of mobile sites which can satisfy the cache limitation of the mobile sites under the high mobile environment. The method comprises the following steps: firstly presetting a service period of a base station as(T0, T0+ds / v), then judging the quantity of power turning points in the service period, solving time corresponding to each power turning point, and solving a signal-to-noise ratio of a transmitting terminal according to a first transmitting-terminal signal-to-noise ratio calculation formula or second transmitting-terminal signal-to-noise ratio calculation formula. By adopting the method, the needed transmitting power is minimized under the condition that the cache limitation is satisfied, so that the cache of the mobile site has no overflowing, and the transmitting power is minimized.
Owner:TSINGHUA UNIV +1
Optimization method for robust beamforming in non-orthogonal multiple access technology for visible light communication
InactiveCN107332614BSatisfy quality of serviceMeet the requirements of energy saving and consumption reductionSpatial transmit diversityClose-range type systemsQuality of serviceInterior point method
The invention discloses an optimization method of visible light communication non-orthogonal multiple access technology robust beam-forming. The specific steps are as follows: establishing a system model of the NOMA to minimize the transmitting power while satisfying the user service quality, thereby satisfying the energy conservation and consumption reduction requirement in the future mobile communication technology. By using the convex optimization method, the relax transformation is performed on the established non-convex system function, and then the solution is performed by using the interior point method. Compared with the existing modeling and processing method, the method disclosed by the invention can satisfy the quality of service requirement and reduce the outage probability under the existence of the estimation error.
Owner:CHINA UNIV OF MINING & TECH
Secure communication method based on intelligent metasurface in radiation mode
PendingCN114401031AOptimal transmission powerOptimal Phase BeamSpatial transmit diversityHigh level techniquesSecure communicationAnti jamming
The invention relates to a secure communication method based on an intelligent metasurface in a radiation mode. The method comprises the following steps: constructing a secure communication scene; the secure communication scene comprises a transmitting base station, a legal user, a jammer and an eavesdropping machine; the transmitting base station comprises a transmitter and an intelligent metasurface in a radiation mode; the intelligent metasurface communicates with the legal user and the eavesdropper through the first channel and the second channel respectively; the jammer communicates with the legal user and the eavesdropper through a third channel and a fourth channel respectively; the transmission power and the phase beam are used as optimization variables, the minimum power of a transmitting base station is used as an optimization target, constraint conditions are set according to the rate outage probability of a legal user, the secrecy rate outage probability of the target and intelligent metasurface unit amplitude normalization, and a target function is constructed; and solving the objective function to obtain the optimal transmission power and phase beam in the secure communication scene. According to the invention, anti-interference and anti-eavesdropping can be realized at the same time, and the cost and power consumption are reduced at the same time.
Owner:NAT UNIV OF DEFENSE TECH
Information processing method in home base station network
InactiveCN102857281BSuppresses cross-layer interferenceSuppress interferenceSpatial transmit diversityBaseband system detailsInformation processingMacro base stations
Owner:SHANGHAI JIAOTONG UNIV
A method for finding the minimum power of downlink noma in visible light communication system
InactiveCN107342811BIncrease speedGuaranteed service qualityClose-range type systemsQuality of serviceClosed expression
The invention discloses a method for solving downlink NOMA (Non-orthogonal Multiple Access) minimized power of a visible light communication system. According to the method, an NOMA system model is established, a downlink NOMA user rate closed expression in the visible light communication is derived according to features of signals in the visible light communication system, the user quality of service is satisfied, and moreover, the transmitting power is minimized, so energy conservation and emission reduction demands in a mobile communication technology are satisfied. Compared with frequency division multiplexing, the method has the advantages that a user sum rate is maximized, moreover, the consumed transmitting power is minimum, and the user quality of service is ensured.
Owner:CHINA UNIV OF MINING & TECH
Multi-antenna multicast transmission method for symbiotic communication system based on smart reflective surface
ActiveCN112532289BMinimize the total transmit powerSave energyPower managementSpatial transmit diversityInterference (communication)Frequency spectrum
The invention belongs to the technical field of wireless communication, and relates to a multi-antenna multicast transmission method of a symbiotic communication system based on an intelligent reflective surface. The present invention proposes a multi-antenna multicast transmission method for a symbiotic communication system based on an intelligent reflective surface. The intelligent reflective surface sends its own Internet of Things information symbols through the multicast signal of the main system, and the downlink multicast transmission from the base station to the main receiver is Can be augmented by smart surfaces, both the main receiver and the IoT receiver receive the direct link signal from the base station and the reflected signal from the smart surface. The present invention also proposes a method for jointly optimizing the active beamforming W at the base station and the passive beamforming Φ at the smart surface, to achieve the base station transmitting Power is minimized. Through simulation verification, the present invention greatly saves the transmission power and energy of the base station without affecting the normal communication of the main system, and does not increase spectrum and cost overhead.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Transmitting power minimization transmission method based on reconfigurable intelligent surface
PendingCN114826349AImprove robustnessFast convergenceTransmission monitoringRadio transmissionQuality of serviceComputation complexity
The invention discloses a transmitting power minimization transmission method based on a reconfigurable intelligent surface, and the method comprises the steps: enabling a signal transmitted by a base station to reach a user side through the reflection of the reconfigurable intelligent surface, and enabling the reconfigurable intelligent surface to change the phase of a signal incident on the reconfigurable intelligent surface, so as to enhance the receiving signal of the user side. Therefore, the effect of reducing the transmitting power of the base station end on the premise of ensuring the service quality is achieved. According to the method, a base station and a reconfigurable intelligent surface utilize known channel state information, based on a transmitting power minimization principle, a non-shared subcarrier distribution strategy among users is considered, and on the premise that user performance constraints are met, the user performance is improved. A transmitting end precoding matrix and a reconfigurable intelligent surface reflection phase matrix are jointly designed through a maximum ratio transmission precoding scheme and a deep reinforcement learning algorithm. According to the method, the convergence speed is high, and compared with a traditional numerical method, the transmitting power is effectively reduced through low calculation complexity and time delay.
Owner:SOUTHEAST UNIV
A method for controlling the transmission power of a node in an af two-way relay communication system
ActiveCN107040981BMinimize the total transmit powerTotal Transmit Power AdvantagePower managementChannel state informationCommunications system
The invention discloses a control method of node transmitting power of an AF two-way relay communication system. The system transmitting power minimization is taken as a target, a system QoS requirement and the node peak transmitting power constraint are taken as a condition, so that the transmitting power of a network node is dynamically adjusted according to instantaneous channel state information and a system target rate; and the minimization of the total transmitting power of the system is realized under a condition of satisfying the system QoS requirement and the node peak transmitting power constraint.
Owner:NANTONG UNIVERSITY
Optimal Power Control Method for Radar-Communication Integrated System Based on Radio Frequency Stealth
ActiveCN109672488BMinimize the total transmit powerImprove RF Stealth PerformancePower managementWave based measurement systemsTransmitted powerRadio frequency
The invention discloses an optimal power control method of a radar-communication integrated system based on radio frequency stealth, and the radar-communication integrated system includes M T A transmitter, a radar receiver and a communication receiver; the method includes the following steps: S1: Characterize target detection performance; S2: Characterize communication performance; S3: According to a given communication rate threshold r com , False alarm probability threshold δ FA and target detection probability threshold δ D , establish the optimal power control model of the integrated radar-communication system, and obtain the optimal radar signal transmission power; S4: construct the Lagrangian multiplier formula, and obtain the optimal communication signal transmission power; S5: use the optimal power obtained in step S3 The radar signal transmission power is added to the optimal communication signal transmission power obtained in step S4 to obtain the minimum total transmission power of the integrated radar-communication system. The invention improves the radio frequency stealth performance of the system.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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