Novel THP algorithms with minimum BER criterion for MIMO broadcast communications

doi:10.1016/S1005-8885(08)60251-4

中国邮电高校学报(英文) ›› 2009, Vol. 16 ›› Issue (4): 71-77.doi: 10.1016/S1005-8885(08)60251-4

Novel THP algorithms with minimum BER criterion for MIMO broadcast communications

云翔,吕铁军

School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

收稿日期:2008-09-26 修回日期:1900-01-01 出版日期:2009-08-31
通讯作者: 吕铁军

Novel THP algorithms with minimum BER criterion for MIMO broadcast communications

YUN Xiang, LÜ Tie-jun

School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2008-09-26 Revised:1900-01-01 Online:2009-08-31
Contact: LÜ Tie-jun

摘要/Abstract

摘要：

In this article, two novel Tomlinson-Harashima precoding (THP) algorithms are proposed at the downlink broadcast channel of multi-user multiple-input multiple-output (MIMO) systems. The optimality criterion is the minimization of the bit error rate (BER) at the receiver with a constraint on the overall transmitted power. In these algorithms, transmit power allocation (TPA) matrix is introduced to the traditional THP algorithms as part of the precoding matrix. This leads to a power loading operation based on substreams signal to interference-plus-noise ratio (SINR) and results in improvement of the error rate performance compared with traditional THP algorithms. When the precoding loss factor is considered, further performance improvement is achieved by the enhanced algorithm.

关键词:

MIMO;system,;THP,;minimum;bit-error;rate;(MBER),;broadcast;communication

Abstract:

Key words:

MIMO system;THP;minimum bit-error rate (MBER);broadcast communication

YUN Xiang, LÜ Tie-jun. Novel THP algorithms with minimum BER criterion for MIMO broadcast communications[J]. Acta Metallurgica Sinica(English letters), 2009, 16(4): 71-77.

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Novel THP algorithms with minimum BER criterion for MIMO broadcast communications

Novel THP algorithms with minimum BER criterion for MIMO broadcast communications

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