Hybrid Precoding for Correlated Multi-User mm-Wave Channels Based on Beam Alignment

被引：1
|
作者：
Nie, Yifang [1 ,2 ]
Li, Fangwei [2 ]
Mbugua, Allan Wainaina [3 ]
Fan, Wei [3 ]
机构：
[1] Chongqing Technol & Business Univ, Engn Res Ctr Waste Oil Recovery Technol & Equipme, Minist Educ, Chongqing 400067, Peoples R China
[2] Chongqing Univ Posts & Telecommun, Sch Commun & Informat Engn, Chongqing 400065, Peoples R China
[3] Aalborg Univ, Dept Elect Syst, DK-9220 Aalborg, Denmark
来源：
IEEE WIRELESS COMMUNICATIONS LETTERS | 2022年 / 11卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Radio frequency; Precoding; Interference; Wireless communication; Array signal processing; Indexes; Matching pursuit algorithms; Beam alignment; hybrid precoding; millimeter-wave channels; multi-user communications;
D O I：
10.1109/LWC.2021.3129264
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Hybrid analog-and-digital precoding in millimeter-wave (mm-wave) multiple-input multiple-output (MIMO) communications is a promising strategy to save cost with a minimal performance penalty. In this letter, a novel hybrid precoder (HP) design is proposed for correlated multi-user mm-wave communication scenarios. With a hybrid beamformer structure, the proposed solution can effectively align beams to cover the strongest paths of individual users, and suppress interference by iterative ping-pong beamforming (PPB) strategy. Experimental results demonstrate that the proposed scheme can obtain higher spectrum efficiency compared to existing HP designs in highly correlated channels.
引用
收藏
页码：381 / 385
页数：5
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