CELL-FREE

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Preamble slice orderly queue access scheme in cell-free dense communication systems
《Digital Communications and Networks》2025年第1期126-135,共10页Jun Sun Mengzhu Guo Jian Liu 
supported in part by the National Natural Science Foundation of China under grants 61771255;in part by the Provincial and Ministerial Key Laboratory Open Project under grant 20190904;in part by the Key Technologies R&D Program of Jiangsu (Prospective and Key Technologies for Industry)under Grants BE2022067,BE2022067-1 and BE2022067-2。
High reliability applications in dense access scenarios have become one of the main goals of 6G environments.To solve the access collision of dense Machine Type Communication(MTC)devices in cell-free communication sys...
关键词：Machine type communication Random access Reinforcement learning Access success probability Federated learning 
Passive Integrated Sensing and Communication Scheme Based on RF Fingerprint Information Extraction for Cell-Free RAN
《China Communications》2025年第1期171-181,共11页Yu Jingxuan Zeng Fan Li Jiamin Liu Feiyang Zhu Pengcheng Wang Dongming You Xiaohu 
supported in part by the National Key Research and Development Program under Grant(2021YFB2900300);by the National Natural Science Foundation of China(NSFC)under Grants 61971127,61871122;by the Southeast University-China Mobile Research Institute Joint Innovation Center,and by the Major Key Project of PCL(PCL2021A01-2).
This paper investigates how to achieve integrated sensing and communication(ISAC)based on a cell-free radio access network(CF-RAN)architecture with a minimum footprint of communication resources.We propose a new passi...
关键词：CF-RAN ISAC passive sensing RF fingerprinting 
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 
Network-Assisted Full-Duplex Cell-Free mmWave Massive MIMO Systems with DAC Quantization and Fronthaul Compression
《China Communications》2024年第11期75-87,共13页Li Jiamin Fan Qingrui Zhang Yu Zhu Pengcheng Wang Dongming Wu Hao You Xiaohu 
supported in part by the National Natural Science Foundation of China(NSFC)under Grants 61971127,61871465,61871122;in part by the National Key Research and Development Program under Grant 2020YFB1806600;in part by the open research fund of National Mobile Communications Research Laboratory,Southeast University under Grant 2022D11。
In this paper,we investigate networkassisted full-duplex(NAFD)cell-free millimeter-wave(mmWave)massive multiple-input multiple-output(MIMO)systems with digital-to-analog converter(DAC)quantization and fronthaul compre...
关键词：cell-free massive MIMO DAC quantization millimeter-wave network-assisted full-duplex 
Deep Reinforcement Learning Based Joint Cooperation Clustering and Downlink Power Control for Cell-Free Massive MIMO
《China Communications》2024年第11期1-14,共14页Du Mingjun Sun Xinghua Zhang Yue Wang Junyuan Liu Pei 
supported by Guangdong Basic and Applied Basic Research Foundation under Grant 2024A1515012015;supported in part by the National Natural Science Foundation of China under Grant 62201336;in part by Guangdong Basic and Applied Basic Research Foundation under Grant 2024A1515011541;supported in part by the National Natural Science Foundation of China under Grant 62371344;in part by the Fundamental Research Funds for the Central Universities;supported in part by Knowledge Innovation Program of Wuhan-Shuguang Project under Grant 2023010201020316;in part by Guangdong Basic and Applied Basic Research Foundation under Grant 2024A1515010247。
In recent times,various power control and clustering approaches have been proposed to enhance overall performance for cell-free massive multipleinput multiple-output(CF-mMIMO)networks.With the emergence of deep reinfo...
关键词：cell-free massive MIMO CLUSTERING deep reinforcement learning power control 
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 
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 
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 
Secure resource allocation against colluding eavesdropping in a user-centric cell-free massive multiple-input multiple-output system
《Frontiers of Information Technology & Electronic Engineering》2024年第4期500-512,共13页Na LI Yuanyuan GAO Kui XU Xiaochen XIA Huazhi HU Yang LI Yueyue ZHANG 
supported by the National Natural Science Foundation of China(Nos.62071485,61671472,and 62271503);the Natural Science Foundation of Jiangsu Province,China(Nos.20201334 and 20181335)。
We investigate the resource allocation problem of a cell-free massive multiple-input multiple-output system under the condition of colluding eavesdropping by multiple passive eavesdroppers.To address the problem of li...
关键词：CELL-FREE Colluding eavesdropping Limited pilot resources Access point selection Security rate 
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) 
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