UPLINK

作品数：120被引量：161H指数：6
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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 
HetNets Under Decoupled Uplink and Downlink Access with UE Random Discontinuous Transmission: Local Delay and Energy Efficiency
《China Communications》2024年第3期205-216,共12页Zhang Yue Zheng Fuchun Luo Jingjing 
supported in part by the National Key R&D Program of China under Grant 2021YFB 2900304;the Shenzhen Science and Technology Program under Grants KQTD20190929172545139 and ZDSYS20210623091808025.
Due to the limited uplink capability in heterogeneousnetworks (HetNets), the decoupled uplinkand downlink access (DUDA) mode has recently beenproposed to improve the uplink performance. In thispaper, the random discon...
关键词：decoupled uplink and downlink access(DUDA) heterogeneous networks(HetNets) random discontinuous transmission(DTX) stochastic geometry 
Secure Short-Packet Transmission in Uplink Massive MU-MIMO Assisted URLLC Under Imperfect CSI被引量：1
《China Communications》2023年第12期196-211,共16页Tian Yu Xiaoli Sun Yueming Cai Zeyuan Zhu 
supported by the National Key R&D Program of China under Grant 2018YFB1801103;the National Natural Science Foundation of China under Grant(no.62171464,no.62122094)。
Ultra-reliable and low-latency communication(URLLC)is still in the early stage of research due to its two strict and conflicting requirements,i.e.,ultra-low latency and ultra-high reliability,and its impact on securit...
关键词：average secrecy throughput imperfect CSI massive MU-MIMO physical-layer security short-packet 
Minimizing Age of Information in the Uplink Multi-User Networks via Dynamic Bandwidth Allocation被引量：2
《China Communications》2023年第4期287-301,共15页Zeyuan Zhu Xinrong Guan Baoquan Yu Tian Yu Yueming Cai 
supported by the Natural Science Foundations of China under Grant(62171464,62171461);the National Key R&D Program of China(No.11112018YFB1801103);the Natural Science Foundation on Frontier Leading Technology Basic Research Project of Jiangsu under Grant BK20212001。
Improving the information freshness is critical for the monitoring and controlling applications in the cellular Internet of Things(IoT).In this paper,we are interested in optimizing the bandwidth allocation dynamicall...
关键词：Internet of Things age of information short packet communications bandwidth allocation 
Performance Analysis of Uplink Massive Spatial Modulation MIMO Systems in Transmit-Correlated Rayleigh Channels被引量：4
《China Communications》2021年第2期27-39,共13页Qiyishu Li Xiangbin Yu Mingfeng Xie Ning Li Xiaoyu Dang 
In this paper,the performance of uplink multiuser massive multiple-input multipleoutput(MIMO)system with spatial modulation over transmit-correlated Rayleigh fading channel is investigated,where a large number of ante...
关键词：bit error rate massive MIMO spatial modulation transmit correlation shadow fading ZF receiver 
Active User and Data Detection for Uplink Grant-free NOMA Systems被引量：2
《China Communications》2020年第11期12-28,共17页Donghong Cai Jinming Wen Pingzhi Fan Yanqing Xu Lisu Yu 无 
supported by National Natural Science Foundation of China(NSFC)under Grant No.62001190;The work of J.Wen was supported by NSFC(Nos.11871248,61932010,61932011);the Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme(2019),Guangdong Major Project of Basic and Applied Basic Research(2019B030302008);the Fundamental Research Funds for the Central Universities(No.21618329);The work of P.Fan was supported by National Key R&D Project(No.2018YFB1801104);NSFC Project(No.6202010600).
This paper proposes some low complexity algorithms for active user detection(AUD),channel estimation(CE)and multi-user detection(MUD)in uplink non-orthogonal multiple access(NOMA)systems,including single-carrier and m...
关键词：non-orthogonal multiple access massive connection active user detection channel estimation multi-user detection and alternating direction method of multipliers 
Dynamic Uplink Transmission Scheduling for Satellite Internet of Things Applications被引量：8
《China Communications》2020年第10期241-248,共8页Li Wang Shuaijun Liu Weidong Wang Zhiyan Fan 
Satellite communication systems provide a cost-effective solution for global internet of things(IoT)applications due to its large coverage and easy deployment.This paper mainly focuses on Satellite networks system,in ...
关键词：satellite IoT transmission scheduling resource allocation simulated annealing Monte Carlo 
Design and Analysis of Novel Ka Band NOMA Uplink Relay System for Lunar Farside Exploration被引量：4
《China Communications》2020年第7期1-14,共14页Jian Jiao Yizhi He Ye Wang Shaohua Wu 
supported in part by the National Natural Sciences Foundation of China(NSFC)under Grant 61771158,Grant 61871147,Grant 61831008,Grant 91638204,and Grant 61525103;in part by the Shenzhen Basic Research Program under Grant J CYJ20170811154309920,Grant JCYJ20170811160142808,and Grant ZDSYS201707280903305;in part by the Guangdong Science and Technology Planning Project under Grant 2018B030322004;in part by the Natural Science Foundation of Guangdong Province under Grant 2020A1515010505;in part by the project The Verification Platform of Multi-tier Coverage Communication Network for Oceans under Grant LZC0020。
This paper proposes a novel Ka band non-orthogonal multiple access(NOMA)uplink relay system for Lunar farside exploration,where a satellite relay node with the help of NOMA scheme,amplifies and forwards the signal fro...
关键词：NOMA system EARTH 
An Adaptive Grouping Scheme in Ultra-Dense IEEE 802.11ax Network Using Buffer State Report Based Two-Stage Mechanism被引量：2
《China Communications》2019年第9期31-44,共14页Jiyang Bai He Fang Junghoon Suh Osama Aboul-Magd Edward Au Xianbin Wang 
IEEE 802.11ax,which is an emerging WLAN standard,aims at providing highly efficient communication in ultra-dense wireless networks.However,due to a large number of stations(STAs)in the ultra-dense device deployment sc...
关键词：IEEE 802.11ax Orthogonal Frequency-Division Multiple ACCESS (OFDMA) Buffer Status REPORT (BSR) UPLINK OFDMARandom ACCESS (UORA) GROUPING 
Antenna Selection and Power Allocation Design for 5G Massive MIMO Uplink Networks被引量：10
《China Communications》2019年第4期1-15,共15页Hongyuan Gao Yumeng Su Shibo Zhang Ming Diao 
supported by the National Natural Science Foundation of China (No. 61571149);the Special China Postdoctoral Science Foundation (2015T80325);the Fun-damental Research Funds for the Central Universities (HEUCFP201808);the China Postdoctoral Science Foundation (2013M530148)
Massive MIMO is one of the key technologies in future 5G communications which can satisfy the requirement of high speed and large capacity. This paper considers antenna selection and power allocation design to promote...
关键词：5G MASSIVE MIMO antenna selection power ALLOCATION quantum-inspiredsocial EMOTIONAL optimization 
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