Fractionally spaced blind equalization with low-complexity concurrent constant modulus algorithm and soft decisiondirected scheme

被引：7
|
作者：
Chen, S [1 ]
Chng, ES
机构：
[1] Univ Southampton, Sch Elect & Comp Sci, Southampton SO17 1BJ, Hants, England
[2] Nanyang Technol Univ, Sch Comp Engn, Singapore 639798, Singapore
来源：
INTERNATIONAL JOURNAL OF ADAPTIVE CONTROL AND SIGNAL PROCESSING | 2005年 / 19卷 / 06期
关键词：
fractionally spaced blind equalization; quadrature amplitude modulation; constant modulus algorithm; decision-directed adaptation;
D O I：
10.1002/acs.849
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The paper proposes a low-complexity concurrent constant modulus algorithm (CMA) and soft decision-directed (SDD) scheme for fractionally spaced blind equalization of high-order quadrature amplitude modulation channels. We compare our proposed blind equalizer with the recently introduced state-of-art concurrent CMA and decision-directed (DD) scheme. The proposed CMA + SDD blind equalizer is shown to have simpler computational complexity per weight update, faster convergence speed, and slightly improved steady-state equalization performance, compared with the existing CMA + DD blind equalizer. Copyright (c) 2004 John Wiley & Sons, Ltd.
引用
收藏
页码：471 / 484
页数：14
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