UPLINK

作品数：121被引量：161H指数：6
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An Efficient Signal Detection Technique for Uplink Massive MIMO-OFDM System over Frequency Selective Channel
《Journal of Communications and Information Networks》2025年第1期81-86,共6页Jyoti P.Patra Bibhuti Bhusan Pradhan Ranjan Kumar Mahapatra Sankata Bhanjan Prusty 
Signal detection in massive multiple-input multiple-output(m-MIMO)is a challenging task due to high computational complexity.Although,the minimum mean square error(MMSE)method is a popular signal detection,however it ...
关键词：massive MIMO OFDM signal detection IPMD-DSC frequency selective channel 
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 
Efficient Resource Allocation Algorithm in Uplink OFDM-Based Cognitive Radio Networks被引量：1
《Computers, Materials & Continua》2023年第5期3045-3064,共20页Omar Abdulghafoor Musbah Shaat Ibraheem Shayea Ahmad Hamood Abdelzahir Abdelmaboud Ashraf Osman Ibrahim Fadhil Mukhlif Herish Badal Norafida Ithnin Ali Khadim Lwas 
Authors extend their appreciation to the Deanship of Scientific Research at King Khalid University for funding this work through Large Groups Project under Grant Number RGP.2/111/43;supported in part by the Agencia Estatal de Investigación,Ministerio de Ciencia e Innovación(MCIN/AEI/10.13039/501100011033);the R+D+i Project under Grant PID2020-115323RB-C31;in part by the Grant from the Spanish Ministry of Economic Affairs and Digital Transformation and the European Union-NextGenerationEU under Grant UNICO-5G I+D/AROMA3D-Hybrid TSI-063000-2021-71.
The computational complexity of resource allocation processes,in cognitive radio networks(CRNs),is a major issue to be managed.Furthermore,the complicated solution of the optimal algorithm for handling resource alloca...
关键词：Cognitive radio resource allocation OFDM PRICING 
Low-complexity soft-output signal detector based on adaptive pre-conditioned gradient descent method for uplink multiuser massive MIMO systems
《Digital Communications and Networks》2023年第2期557-566,共10页Souleymane Berthe Xiaorong Jing Hongqing Liu Qianbin Chen 
supported by National Natural Science Foundation of China under Grant 61501072 and 61701062;Chongqing Research Program of Basic Research and Frontier Technology under Grant cstc2019jcyj-msxmX0079;Program for Changjiang Scholars and Innovative Research Team in University under Grant IRT16R72.
In multiuser massive Multiple Input Multiple Output(MIMO)systems,a large amount of antennas are deployed at the Base Station(BS).In this case,the Minimum Mean Square Error(MMSE)detector with soft-output can achieve th...
关键词：Multiuser massive MIMO MMSE algorithm GD Method Soft-output PRE-CONDITIONING Symmetric rank one update 
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 
GrCol-PPFL:User-Based Group Collaborative Federated Learning Privacy Protection Framework被引量：1
《Computers, Materials & Continua》2023年第1期1923-1939,共17页Jieren Cheng Zhenhao Liu Yiming Shi Ping Luo Victor S.Sheng 
supported by the Major science and technology project of Hainan Province(Grant No.ZDKJ2020012);National Natural Science Foundation of China(Grant No.62162024 and 62162022);Key Projects in Hainan Province(Grant ZDYF2021GXJS003 and Grant ZDYF2020040).
With the increasing number of smart devices and the development of machine learning technology,the value of users’personal data is becoming more and more important.Based on the premise of protecting users’personal p...
关键词：Federated learning privacy protection uplink consumption time 
Broadband V-band Radio over Fiber Uplink Fronthaul Transmission Using Cascaded Microwave Photonic Downconversion Topology
《激光与光电子学进展》2022年第13期435-442,共8页Zhang Hui Li Peixuan Zou Xihua Bai Wenlin Pan Wei Yan Lianshan 
国家重点研发计划(2019YFB2203200);国家自然科学基金(62001401);中央高校基本科研业务费专项资金(2682021CX045);四川省科技计划(2022JDTD0013)。
Exploiting microwave photonic(MWP)techniques to generate and distribute high-frequency millimeter-wave(mm-wave)signals,termed mm-wave radio over fiber(m-RoF)signals,holds considerable potential for achieving highdensi...
关键词：MILLIMETER-WAVE radio over fiber fifth-generation and beyond networks microwave photonic downconversion 
Multi Multi-Cell Uplink Interference Management Cell Uplink Interference Management: A Distributed Power Control Method
《ZTE Communications》2022年第S01期56-63,共8页HU Huimin LIU Yuan GE Yiyang WEI Ning XIONG Ke 
This paper investigates a multi-cell uplink network,where the orthogonal frequency division multiplexing(OFDM)protocol is considered to mitigate the intra-cell interference.An optimization problem is formulated to max...
关键词：uplink interference multi-cell uplink network non-cooperative game in-teractive scheme 
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