A newly high-speed MCMA algorithm for QAM system

被引：0
|
作者：
Jiang, Zhixiang [1 ]
Zhang, Meng [1 ]
Li, Zichuang [1 ]
Lu, Sbengli [1 ]
机构：
[1] Southeast Univ, Natl ASIC Syst Engn Res Ctr, Nanjing 210096, Peoples R China
来源：
2008 4TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-31 | 2008年
关键词：
CMA; DD-LMS; Stop-and-Go; convergence speed; correct phase ambiguity;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
A newly modified CMA algorithm: Stop-and-Go-DD-LMS CMA (SGD-CMA) for quadrature amplitude modulation (QAM) signals is presented. It integrates conventional constant modulus algorithm (CMA) and decision-direct least-mean-square (DD-LMS) under Stop-and-Go principle. The SGD-CMA equalizer performs six times faster, rudimental MSE 3 similar to 5dB better than CMA, corrects a final phase ambiguity and decreases 82% of operation complexity while compared to the CMA+DD-LMS equalizer increasing little hardware consumption. It is especially fit for Decision Feedback Equalization (DFE) structure. Simulations support SGD-CMA on all performance and characteristics, validating its feasibility and advantages.
引用
收藏
页码：1864 / 1867
页数：4
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