CELL-FREE

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Optimal AP Deployment in Cell-Free Massive MIMO Systems with LoS/NLoS Transmissions:A Stochastic Geometry Approach被引量：1
《China Communications》2024年第9期146-158,共13页Jiang Ling Zhang Qi Zhu Hongbo 
supported in part by the National Natural Science Foundation of China under Grant 62171231;in part by the Jiangsu Provincial Key Research and Development Program(No.BE2020084-1)。
Cell-free massive multiple-input multipleoutput(MIMO)is a promising technology for future wireless communications,where a large number of distributed access points(APs)simultaneously serve all users over the same time...
关键词：cell-free massive MIMO energy efficiency LoS/NLoS transmissions stochastic geometry 
Slicing capacity-centered mode selection and resource optimization for network-assisted full-duplex cell-free distributed massive MIMO systems
《Science China(Information Sciences)》2024年第1期199-216,共18页Jie WANG Jiamin LI Pengcheng ZHU Dongming WANG Hongbiao ZHANG Yue HAO Bin SHENG 
supported in part by National Key Research and Development Program (Grant No.2021YFB2900300);National Natural Science Foundation of China (Grants Nos.61971127,61871122);Southeast University-China Mobile Research Institute Joint Innovation Center;Major Key Project of PCL (Grant No.PCL2021A01-2)。
Network-assisted full-duplex(NAFD) cell-free distributed massive multiple-input multipleoutput(MIMO) systems enable uplink(UL) and downlink(DL) communications within the same timefrequency resources,which potentially ...
关键词：network-assisted full-duplex network slicing mode selection resource optimization deep rein-forcement learning 
Manifold optimization assisted centralized hybrid precoding for cell-free massive MIMO systems
《Science China(Information Sciences)》2023年第11期301-302,共2页Jie LUO Jiancun FAN Yawen WANG Jinbo ZHANG 
supported by National Natural Science Foundation of China(Grant No.61671367);Research Foundation of Science and Technology on Communication Networks Laboratory。
In the sixth generation(6G)wireless communication,cellfree massive multiple-input multiple-output(MIMO)has emerged as a promising technology due to it can improve macro diversity gain,enhance edge user service quality...
关键词：MIMO MASSIVE wireless 
A survey on user-centric cell-free massive MIMO systems
《Digital Communications and Networks》2022年第5期695-719,共25页Shuaifei Chen Jiayi Zhang Jing Zhang Emil Björnson Bo Ai 
This work was supported in part by National Key R&D Program of China under Grant 2020YFB1807201;in part by National Natural Science Foundation of China under Grants 61971027,U1834210,and 61961130391;in part by Beijing Natural Science Foundation under Grant L202013;in part by Frontiers Science Center for Smart High-speed Railway System under Grant 2020JBZD005;in part by the Royal Society Newton Advanced Fellowship under Grant NA191006.E.Björnson was supported by the Grant 2019-05068 from the Swedish Research Council.
The mobile data traffic has been exponentially growing during the last several decades.This was enabled by the densification of the network infrastructure in terms of increased cell density(i.e.,Ultra-Dense Network(UD...
关键词：6G network User-centric cell-free network Massive multiple-input multiple-output 
Joint optimization of spectral efficiency and energy efficiency with low-precision ADCs in cell-free massive MIMO systems被引量：2
《Science China(Information Sciences)》2022年第5期165-179,共15页Han WANG Chang SUN Jiamin LI Pengcheng ZHU Dongming WANG Xiaohu YOU 
supported in part by National Key Research and Development Program(Grant No.2020YFB1806600);National Natural Science Foundation of China(Grant Nos.61971127,61871465,61871122);Fundamental Research Funds for the Central Universities。
In cell-free massive multiple-input multiple-output(MIMO)systems,it is beneficial to apply low-precision analog-to-digital converters(ADCs)to reduce power consumption,hardware cost,and the load on backhaul link.Howeve...
关键词：cell-free massive MIMO low-precision ADC spectral efficiency energy efficiency multi-objective optimization 
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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