Parallel Implementation of Decision-Aided Maximum-Likelihood Phase Estimation in Coherent M-ary Phase-Shift Keying Systems

被引：9
|
作者：
Zhang, S. [1 ]
Yu, C. [1 ,2 ]
Kam, P. Y. [1 ]
Chen, J. [2 ]
机构：
[1] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore
[2] ASTAR, Inst Infocomm Res, Singapore 138632, Singapore
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2009年 / 21卷 / 19期
关键词：
Coherent detection; decision-aided maximum likelihood (DA ML); laser phase noise; M-ary phase-shift keying (PSK); parallel processing; phase estimation; FEEDFORWARD CARRIER RECOVERY;
D O I：
10.1109/LPT.2009.2028580
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：
To make decision-aided (DA) maximum-likelihood (ML) phase estimation suitable for real-time processing, a parallel implementation is proposed. The variance of the phase error using the parallel DA ML is analytically examined. The bit-error-rate performance is also analytically investigated in different M-ary phase-shift keying (PSK) systems. The results show that parallel DA ML can outperform block Mth-power in binary PSK format, while suffering performance penalty originating from parallelism and pipelining in high-order PSK formats.
引用
收藏
页码：1471 / 1473
页数：3
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