Multi-User mmWave Uplink Communications Based on Collaborative Double-RIS: Joint Beamforming and Power Control

被引：4
|
作者：
Xue, Qing [1 ,2 ]
Wei, Renlong [1 ]
Ma, Shaodan [2 ]
Xu, Yongjun [1 ]
Yan, Li [3 ]
机构：
[1] Chongqing Univ Posts & Telecommun, Sch Commun & Informat Engn, Chongqing 400065, Peoples R China
[2] Univ Macau, Dept Elect & Comp Engn, State Key Lab Internet Things Smart City, Taipa 999078, Macao, Peoples R China
[3] Southwest Jiaotong Univ, Key Lab Informat Coding & Transmiss, Chengdu 610031, Peoples R China
来源：
IEEE COMMUNICATIONS LETTERS | 2023年 / 27卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Array signal processing; Millimeter wave communication; Uplink; Optimization; Power control; Interference; System performance; Millimeter wave (mmWave); reconfigurable intelligent surface (RIS); beamforming; power control; INTELLIGENT;
D O I：
10.1109/LCOMM.2023.3309710
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
To explore the potential of multiple collaborative reconfigurable intelligent surfaces (RISs) for millimeter wave (mmWave) communications, in this letter, we consider a double-RIS-aided multi-user mmWave uplink communication system, which aims to maximize the system throughput by jointly optimizing multi-user transmission power, active beamforming, and passive beamforming. To address the challenging problem, a low complexity optimization algorithm with a semi-closed-form solution employing fractional programming and minimum mean square error criterion is proposed. The simulation results show that the proposed algorithm has superior performance.
引用
收藏
页码：2702 / 2706
页数：5
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