Constant modulus algorithm aided soft decision directed scheme for blind space-time equalisation of SIMO channels

被引：14

作者：

Chen, S. ^{[1
]}

Wolfgang, A. ^{[1
]}

Hanzo, L. ^{[1
]}

机构：

[1] Univ Southampton, Sch Elect & Comp Sci, Southampton SO17 1BJ, Hants, England

来源：

SIGNAL PROCESSING | 2007年 / 87卷 / 11期

关键词：

single-input multiple-output; space-time equalisation; quadrature amplitude modulation; constant modulus algorithm; decision-directed adaptation;

D O I：

10.1016/j.sigpro.2007.04.007

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：

This paper investigates a blind space-time equaliser (STE) designed for single-input multiple-output (SIMO) systems that employ high-throughput quadrature amplitude modulation schemes. A constant modulus algorithm (CMA) aided soft decision-directed (SDD) scheme, originally derived for low-complexity blind equalisation of single-input single-output channels, is extended to the SIMO scenario. Simulations are conducted to compare the performance of this blind adaptive scheme with another low-complexity blind STE referred to as the CMA aided decision directed (DD) scheme. The results obtained demonstrate that for SIMO systems the CMA aided SDD scheme exhibits advantages over the CMA aided DD arragement, in terms of its faster convergence speed and lower computational complexity.(c) 2007 Elsevier B.V. All rights reserved.

引用

页码：2587 / 2599

页数：13

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