Joint Multi-Beam and Channel Tracking for mmWave Hybrid Beamforming Multi-User Systems

被引：5
|
作者：
Li, Jiahui [1 ,2 ]
Li, Xu [3 ]
Xiao, Limin [2 ]
Zhou, Shidong [1 ,2 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Beijing Natl Res Ctr Informat Sci & Technol, Beijing 100084, Peoples R China
[3] Univ Sci & Technol China, Dept Elect Engn & Informat Sci, Hefei 230026, Peoples R China
来源：
IEEE WIRELESS COMMUNICATIONS LETTERS | 2021年 / 10卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Energy consumption; Array signal processing; Heuristic algorithms; Millimeter wave technology; Interference; Time-varying channels; Resource management; Beam tracking; hybrid beamforming; millimeter wave; multi-user;
D O I：
10.1109/LWC.2021.3072949
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The millimeter wave (mmWave) technology will perform an important role in supporting multi-gigabit services. To compensate for significant path loss and penetration loss, more antennas are equipped to establish narrow beams and provide sufficient antenna array gains. In the meantime, the hybrid beamforming (HBF) structure is utilized to provide acceptable cost and energy consumption, which also flexibly supports multi-user scenarios. However, when the channel varies rapidly, efficiently tracking multiple paths or beam directions still faces difficulties. In this letter, a joint multi-beam and channel tracking scheme is proposed to efficiently perform the beam management for the mmWave HBF multi-user systems. The pilot allocation is optimized and the asymptotic performance of the proposed algorithm is analyzed. Numerical results indicate that the proposed algorithm can significantly improve the tracking performance under time-varying channels.
引用
收藏
页码：1513 / 1517
页数：5
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