Semi-Blind Multiuser Detection Under the Presence of Reconfigurable Intelligent Surfaces

被引：2
|
作者：
Miridakis, Nikolaos, I [1 ,2 ,3 ]
Tsiftsis, Theodoros A. [1 ,2 ]
Yang, Guanghua [1 ,2 ]
Karkazis, Panagiotis A. [3 ]
Leligou, Helen C. [4 ]
机构：
[1] Jinan Univ, Inst Phys Internet, Zhuhai Campus, Zhuhai 519070, Peoples R China
[2] Jinan Univ, Sch Intelligent Syst Sci & Engn, Zhuhai Campus, Zhuhai 519070, Peoples R China
[3] Univ West Attica, Dept Informat & Comp Engn, Aegaleo 12243, Greece
[4] Univ West Attica, Dept Ind Design & Prod Engn, Aegaleo 12241, Greece
来源：
IEEE WIRELESS COMMUNICATIONS LETTERS | 2022年 / 11卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Signal to noise ratio; Wireless communication; Power system reliability; Transmitting antennas; System performance; Receiving antennas; Transceivers; Multiple-antenna transmission; multiuser detection; reconfigurable intelligent surfaces (RIS); zero-forcing detection; PERFORMANCE ANALYSIS;
D O I：
10.1109/LWC.2021.3121605
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A multiuser multiple-input multiple-output wireless communication system is analytically studied, which operates with the aid of a reconfigurable intelligent surface (RIS). The intermediate RIS is equipped with multiple elements and operates via random phase rotations to simultaneously serve multiple users. Independent Rayleigh fading conditions are assumed among the included channels. The system performance is analytically studied when the linear yet efficient zero-forcing detection is implemented at the receiver. In particular, the outage performance is derived in closed-form expression for different system configuration setups with regards to the available channel state information at the receiver. Further, a joint coherent/noncoherent linear detection is analytically presented. Finally, some new engineering insights are provided, such as how the channel state information and/or the volume of antenna/RIS arrays impact on the overall system performance as well as the arising efficiency on the performance/complexity tradeoff by utilizing the joint coherent/noncoherent scheme.
引用
收藏
页码：106 / 110
页数：5
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