Zero-Forcing Based Hybrid Beamforming for Multi-User Millimeter Wave Systems

被引：27

作者：

Noh, Jeehwan ^{[1
]}

Kim, Taeyoung ^{[1
]}

Seol, Ji-Yun ^{[1
]}

Lee, Chungyong ^{[2
]}

机构：

[1] Samsung Elect, Next Generat Commun Business Team, Suwon, South Korea

[2] Yonsei Univ, Dept Elect & Elect Engn, Seoul, South Korea

来源：

IET COMMUNICATIONS | 2016年 / 10卷 / 18期

关键词：

multi-access systems; multiuser channels; wireless channels; array signal processing; radio transmitters; sum rate performance enhancement; multiuser MM-wave channel; limited feedback information; CSIT; perfect channel state information at transmitter; multiuser downlink MM-wave system; HBF scheme; MM-wave beamforming; digital processing; analogue processing; broadband signal power consumption; RF chain; radiofrequency chain; multiuser millimetre wave system; zero-forcing-based hybrid beamforming; submission template; DOWNLINK; COMMUNICATION; CAPACITY; FEEDBACK;

D O I：

10.1049/iet-com.2016.0769

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Owing to the high cost of radio frequency (RF) chains and power consumption of broadband signals, it is suitable to include both analogue and digital processing for millimetre wave (mmWave) beamforming. In this study, hybrid beamforming (HBF) schemes are considered for multi-user downlink mmWave systems. RF beamforming schemes are proposed for HBF transmission with perfect channel state information at transmitter (CSIT) and limited feedback information in the multi-user mmWave channel. Simulation results show that proposed HBF schemes enhance sum rate performance than conventional HBF schemes in both cases of perfect CSIT and limited feedback.

引用

页码：2670 / 2677

页数：8