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CELL-FREE: 作品数：148被引量：425H指数：12; 导出分析报告; 相关作者：冉静学孙强李秀军郭晓东侯朝晖更多>>; 相关机构：哈尔滨工业大学中国航天科工集团第四研究院北京机电工程总体设计部中央民族大学凯迪迪爱通信技术有限公司更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划北京市自然科学基金更多>>

A Hybrid Small-Cell and Clustered Cell-Free Massive MIMO System under Mobility Scenarios: 《China Communications》2024年第12期49-65,共17页Lu Guangyan Li Lihua Tian Hui; This work was supported by the China National Key Research and Development Plan(No.2020YFB1807204).; Recently,cell-free(CF)massive multipleinput multiple-output(MIMO)becomes a promising architecture for the next generation wireless communication system,where a large number of distributed access points(APs)are deploye...; 关键词：access point(AP)selection clustered cell-free Doppler shift effect massive multiple-input multiple-output(MIMO) small-cell

Distributed Cell-Free Massive MIMO Versus Cellular Massive MIMO Under UE Hardware Impairments: 《Chinese Journal of Electronics》2024年第5期1274-1285,共12页Ning LI Pingzhi FAN; supported by the National Natural Science Foundation of China(Grant No.62020106001).; This paper first investigates and compares the uplink spectral efficiency(SE)of distributed cell-free massive multiple-input multiple-output(mMIMO)and cellular mMIMO networks,both with user equipment(UE)hardware impai...; 关键词：Massive multiple-input multiple-output(mMIMO) Cell-free mMIMO Cellular mMIMO Hardware impairments Uplink Spectral efficiency Energy efficiency Optimal receive combining

Impact of non-ideal UE hardware on cell-free massive MIMO network with centralized operation: 《Science China(Information Sciences)》2024年第4期251-267,共17页Ning LI Pingzhi FAN; supported by National Natural Science Foundation of China(Grant No.62020106001);111 Project(Grant No.111-2-14)。; This paper investigates the impact of non-ideal user equipment(UE)hardware on a cell-free(CF)massive MIMO(mMIMO)network with centralized operation under spatially correlated channels.The minimum mean-squared error(MMS...; 关键词：cell-free massive MIMO centralized operation spatially correlated channels hardware impairments channel estimation uplink spectral efficiency optimal receive combining pilot length design fractional power control

RIS-Assisted Cell-Free MIMO: A Survey: 《ZTE Communications》2024年第1期77-86,共10页ZHAO Yaqiong KE Hongqin XU Wei YE Xinquan CHEN Yijian; supported in part by ZTE Industry-University-Institute Co⁃operation Funds.; Cell-free(CF)multiple-input multiple-output(MIMO)is a promising technique to enable the vision of ubiquitous wireless connectivity for next-generation network communications.Compared to traditional co-located massive ...; 关键词：mmWave beyond 5G(B5G) Internet of Everything(IoE) cell-free MIMO RIS unmanned aerial vehicle(UAV) physical layer security(PLS) wireless energy transfer(WET)

Collaborative Caching in Vehicular Edge Network Assisted by Cell-Free Massive MIMO: 《Chinese Journal of Electronics》2023年第6期1218-1229,共12页WANG Chaowei WANG Ziye XU Lexi YU Xiaofei ZHANG Zhi WANG Weidong; supported by the National Key R&D Program of China(2020YFB1807204).; The 6G mobile communications demand lower content delivery latency and higher quality of service for vehicular edge network.With the popularity of content-centric networks,mobile users are paying more and more attenti...; 关键词：Vehicular edge network Cell-free massive MIMO Collaborative caching Content delivery latency Deep reinforcement learning Cache hit ratio

回传容量受限的Cell-free大规模MIMO传输研究综述: 《通信技术》2023年第9期1025-1030,共6页龚燕华; 去蜂窝(Cell-free)大规模多输入多输出(Multiple Input Multiple Output,MIMO)是第六代移动通信(6G)的关键技术之一。在Cell-free大规模MIMO中,接入节点(Access Point,AP)将接收到的信号通过回传链路传输至中央处理器(Central Processin...; 关键词：去蜂窝大规模MIMO 数据回传容量受限

Full-spectrum cell-free RAN for 6G systems:system design and experimental results被引量：9: 《Science China(Information Sciences)》2023年第3期76-89,共14页Dongming WANG Xiaohu YOU Yongming HUANG Wei XU Jiamin LI Pengcheng ZHU Yanxiang JIANG Yang CAO Xinjiang XIA Ziyang ZHANG Qingji JIANG Pan WANG Dongjie LIU Kang ZHENG Mengting LOU Jing JIN Qixing WANG Jiangzhou WANG; supported in part by National Key Research and Development Program(Grant Nos.2020YFB1807205,2020YFB1806608);Research and Development Project in the Key Areas of Guangdong Province(Grant No.2020B0101120003);Southeast-China Mobile Research Institute Joint Innovation Center and by Major Key Project of PCL(Grant No.PCL2021A01-2).; With distributed transceivers and scalable cooperative transmission,cell-free massive multipleinput multiple-output(CF-mMIMO)technology eliminates the“cells”of traditional mobile communications,thereby significantly...; 关键词：6G scalable cell-free massive MIMO cell-free radio access network prototype system

Cell-Free Massive MIMO for 6G Wireless Communication Networks: 《Journal of Communications and Information Networks》2021年第4期321-335,共15页Hengtao He Xianghao Yu Jun Zhang Shenghui Song Khaled B.Letaief; Hong Kong Research Grant Council(16212120)。; The recently commercialized fifth-generation(5G)wireless networks have achieved many improvements,including air interface enhancement,spectrum expansion,and network intensification by several key technologies,such as ...; 关键词：6G network cell-free massive MIMO distributed antenna systems massive MIMO user-centric

Joint optimization of spectral efficiency for cell-free massive MIMO with network-assisted full duplexing被引量：2: 《Science China(Information Sciences)》2021年第8期152-167,共16页Xinjiang XIA Pengcheng ZHU Jiamin LI Hao WU Dongming WANG Yuanxue XIN; National Key Research and Development Program(Grant No.2018YFE0205902);National Natural Science Foundation of China(NSFC)(Grant Nos.61871122,61971127,61871465,61801168).; In this paper,we investigate duplex mode selection and transceiver design for cell-free massive multiple-input multiple-output(MIMO)with network-assisted full duplexing(NAFD),where the remote antenna units(RAUs)simult...; 关键词：cell-free massive MIMO network-assisted full duplexing mode selection success convex approximations spectral efficiency

Spectral Efficiency of Superimposed Pilots in Cell-Free Massive MIMO Systems with Hardware Impairments被引量：1: 《China Communications》2021年第6期146-161,共16页Yao Zhang Meng Zhou Haitao Zhao Longxiang Yang Hongbo Zhu; This work was supported in part by the National Natural Science Foundation of China under Grants 62071246,61771252,61861039,and 61427801;in part by the National Key Research and Development Program of China under Grants 2020YFB1806608 and 2018YFC1314903;in part by the Jiangsu Province Special Fund Project for Transformation of Scientific and Technological Achievements under Grant BA2019058;in part by the Major Natural Science Research Project of Jiangsu Higher Education Institutions under Grant 18KJA510005;in part by the Postgraduate Research&Practice Innovation Program of Jiangsu Province under Grants SJKY190740 and KYCX200709.; In this paper,the spectral efficiency(SE)of an uplink hardware-constrained cell-free massive multi-input multi-output(MIMO)system with maximal ratio combining(MRC)receiver filters in the context of superimposed pilots...; 关键词：cell-free massive MIMO hardware impairments superimposed pilots spectral efficiency

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