Sum-Rate Analysis of Multiuser MIMO System with Zero-Forcing Transmit Beamforming

被引：14

作者：

Lu, Peng ^{[1
]}

Yang, Hong-Chuan ^{[1
]}

机构：

[1] Univ Victoria, Dept Elect & Comp Engn, Victoria, BC V8W 3P6, Canada

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2009年 / 57卷 / 09期

基金：

加拿大自然科学与工程研究理事会;

关键词：

MIMO broadcast channel; zero-forcing beamforming; multiuser diversity; sum-rate analysis; wireless communications; OPTIMALITY;

D O I：

10.1109/TCOMM.2009.09.070583

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：

In this letter, we present the exact sum-rate analysis of the multiuser multiple-input multiple-output (MIMO) systems with zero-forcing transmit beamforming (ZFBF). We develop the analytical expressions of the ergodic sum-rate for two low-complexity user selection strategies for the dual-transmit-antenna scenario. Based on the analytical results, we examine the parameter optimization problem to properly trade off between channel power gain and directional gain in term of maximizing the ergodic sum rate.

引用

页码：2585 / 2589

页数：5

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