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作品数：204被引量：172H指数：5
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Energy Efficiency Maximization for Cooperative NOMA with Hardware Impairments被引量：1
《China Communications》2024年第12期80-91,共12页Wang Zhengqiang Chang Ruifei Wan Xiaoyu Fan Zifu Duo Bin 
partially supported by the National Natural Science Foundation of China under Grant 61701064;Chongqing Natural Science Foundation under Grant cstc2019jcyj-msxmX0264;Sichuan Science and Technology Program under Grant 2022YFQ0017。
The massive connectivity and limited energy pose significant challenges to deploy the enormous devices in energy-efficient and environmentally friendly in the Internet of Things(IoT).Motivated by these challenges,this...
关键词：block coordinate descent cooperative non-orthogonal multiple access energy efficiency hardware impairments resource allocation 
Hybrid Block Diagonalization Precoding for Multi-User Weighted Sum-Rate Maximization
《China Communications》2024年第8期127-141,共15页Su Xiaofeng Jiang Yi 
supported by National Natural Science Foundation of China(No.61771005)
This paper studies large-scale multi-input multi-output(MIMO)orthogonal frequency division multiplexing(OFDM)communications in a broadband frequency-selective channel,where a massive MIMO base station(BS)communicates ...
关键词：block-diagonal gradient descent hybrid precoding iterative optimization MIMO-OFDM MULTI-USER water-filling power allocation weighted sum-rate maximization 
Sum-Rate Maximization in Active RIS-Assisted Multi-Antenna WPCN
《China Communications》2024年第6期23-39,共17页Jiang Jie Lyu Bin Chen Pengcheng Yang Zhen 
supported in part by the National Natural Science Foundation of China (No.62071242 and No.61901229);in part by the Postgraduate Research&Practice Innovation Program of Jiangsu Province(No.KYCX22 0967);in part by the Open Research Project of Jiangsu Provincial Key Laboratory of Photonic and Electronic Materials Sciences and Technology (No.NJUZDS2022-008)
In this paper,we propose an active reconfigurable intelligent surface(RIS)enabled hybrid relaying scheme for a multi-antenna wireless powered communication network(WPCN),where the active RIS is employed to assist both...
关键词：active reconfigurable intelligent surface BEAMFORMING sum-rate maximization wireless powered communication network 
Power Allocation for SE Maximization in Uplink Massive MIMO System Under Minimum Rate Constraint
《China Communications》2024年第3期104-117,共14页Wang Hui Yu Xiangbin Liu Fuyuan Bai Jiawei 
supported by the Fundamental Research Funds for the Central Universities of NUAA(No.kfjj20200414);Natural Science Foundation of Jiangsu Province in China(No.BK20181289).
In this paper,we optimize the spectrum efficiency(SE)of uplink massive multiple-input multiple-output(MIMO)system with imperfect channel state information(CSI)over Rayleigh fading channel.The SE optimization problem i...
关键词：imperfect CSI massive MIMO minimum rate constraint power allocation spectral efficiency 
Mutual Information Maximization via Joint Power Allocation in Integrated Sensing and Communications System
《China Communications》2024年第2期129-142,共14页Jia Zhu Junsheng Mu Yuanhao Cui Xiaojun Jing 
In this paper, we focus on the power allocation of Integrated Sensing and Communication(ISAC) with orthogonal frequency division multiplexing(OFDM) waveform. In order to improve the spectrum utilization efficiency in ...
关键词：COEXISTENCE COMMUNICATIONS multicarrier radar mutual information spectrum sharing 
Participants Recruitment for Coverage Maximization by Mobility Predicting in Mobile Crowd Sensing被引量：1
《China Communications》2023年第8期163-176,共14页Yuanni Liu Xi Liu Xin Li Mingxin Li Yi Li 
supported by the Open Foundation of State key Laboratory of Networking and Switching Technology(Beijing University of Posts and Telecommunications)(SKLNST-2021-1-18);the General Program of Natural Science Foundation of Chongqing(cstc2020jcyj-msxmX1021);the Science and Technology Research Program of Chongqing Municipal Education Commission(KJZD-K202000602);Chongqing graduate research and innovation project(CYS22478).
Mobile Crowd Sensing(MCS)is an emerging paradigm that leverages sensor-equipped smart devices to collect data.The introduction of MCS also poses some challenges such as providing highquality data for upper layer MCS a...
关键词：data average entropy human mobility prediction markov chain mobile crowd sensing 
Computation Rate Maximization in Multi-User Cooperation-Assisted Wireless-Powered Mobile Edge Computing with OFDMA被引量：1
《China Communications》2023年第1期218-229,共12页Xinying Wu Yejun He Asad Saleem 
supported in part by the National Natural Science Foundation of China(NSFC)under Grant No.62071306;in part by Shenzhen Science and Technology Program under Grants JCYJ20200109113601723,JSGG20210802154203011 and JSGG20210420091805014。
In the era of Internet of Things(Io T),mobile edge computing(MEC)and wireless power transfer(WPT)provide a prominent solution for computation-intensive applications to enhance computation capability and achieve sustai...
关键词：mobile edge computing(MEC) wireless power transfer(WPT) user cooperation OFDMA convex optimization 
Secrecy Rate Maximization for 6G Cognitive Satellite-UAV Networks被引量：5
《China Communications》2023年第1期246-260,共15页Chengleyang Lei Wei Feng Yunfei Chen Ning Ge 
supported in part by the National Key Research and Development Program of China under Grant 2020YFA0711301;in part by the National Natural Science Foundation of China under Grant U22A2002 and Grant 61922049。
To cover remote areas where terrestrial cellular networks may not be available,non-terrestrial infrastructures such as satellites and unmanned aerial vehicles(UAVs)can be utilized in the upcoming sixth-generation(6G)e...
关键词：channel allocation cognitive satellite-UAV network physical layer security power allocation 
Capacity Analysis and Sum Rate Maximization for the SCMA Cellular Network Coexisting with D2D Communications被引量：1
《China Communications》2022年第10期55-68,共14页Yukai Liu Wen Chen 
supported by National key project 2018YFB1801102 and 2020YFB1807700;by NSFC 62071296;STCSM 20JC1416502, 22JC1404000
Sparse code multiple access (SCMA) is the most concerning scheme among non-orthogonal multiple access (NOMA) technologies for 5G wireless communication new interface. Another efficient technique in 5G aimed to improve...
关键词：SCMA D2D cellular capacity geometric programming 
An Energy-Efficient UAV Deployment Scheme for Emergency Communications in Air-Ground Networks with Joint Trajectory and Power Optimization被引量：3
《China Communications》2022年第7期67-78,共12页Shuo Zhang Shuo Shi Weizhi Wang Zhenyu Xu Xuemai Gu 
co-supported by National Natural Science Foundation of China (No. 62171158);the Major Key Project of PCL (PCL2021A03-1)
The space-air-ground integrated network(SAGIN)has gained widespread attention from academia and industry in recent years.It is widely applied in many practical fields such as global observation and mapping,intelligent...
关键词：SAGIN UAV energy efficiency(EE)maximization trajectory optimization power allocation 
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