Per-layer transmit and receive filters design for Tomlinson-Harashima precoding in multiuser MIMO systems

被引：0
|
作者：
Huang Min [1 ]
Chen Xiang [1 ]
Zhou ShiDong [1 ]
Wang Jing [1 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, Res Inst Informat Technol, Natl Lab Informat Sci & Technol, Beijing 100084, Peoples R China
来源：
SCIENCE CHINA-INFORMATION SCIENCES | 2012年 / 55卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Tomlinson-Harashima precoding; multiuser multiple-input multiple-output; per-layer; joint transmit and receive filters design; CHANNELS;
D O I：
10.1007/s11432-011-4395-4
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, the per-layer design for Tomlinson-Harashima precoding (THP) in the downlink of multiuser multiple-input multiple-output (MIMO) systems is investigated. In these systems, the number of the receivers is equal to that of the transmit antennas. Based on the criterion of maximum system sum-capacity, we study two per-layer joint transmit and receive filters design schemes with receive antenna beamforming (RAB) and receive antenna selection (RAS), respectively. Moreover, the differences of the equivalent channel gains and capacities between these two schemes are analyzed theoretically. Simulation results show that by these per-layer schemes, the system sum-rate is improved significantly with respect to the per-user processing scheme.
引用
收藏
页码：839 / 849
页数：11
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