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

作　　者：HUANG Min CHEN Xiang ZHOU ShiDong WANG Jing 

机构地区：[1]Department of Electronic Engineering,Research Institute of Information Technology,National Laboratory for Information Science and Technology,Tsinghua University,Beijing 100084,China

出　　处：《Science China(Information Sciences)》2012年第4期839-849,共11页中国科学（信息科学）（英文版）

基　　金：supported by National High-Tech Research & Development Program of China(Grant No.2009AA011501);National Natural Science Foundation of China(Grant No.60832008);China’s Major Project(Grant No.2009ZX03007003);National Basic Research Program of China(Grant No.2007CB310608);the National Science and Technology Pillar Program(Grant No.2008BAH30B09);Program for Changjiang Scholars and Innovative Research Team in University(Grant No.PCSIRT)

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.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.

关 键 词：Tomlinson-Harashima precoding multiuser multiple-input multiple-output per-layer joint trans-mit and receive filters design 

分 类 号：TN929.53[电子电信—通信与信息系统] TP316[电子电信—信息与通信工程]