Improved eighth-order statistics blind phase recovery algorithm for coherent receivers with 16-QAM modulation format

被引：0
|
作者：
Cheng, Yun [1 ]
Xiao, Jiangnan [2 ]
He, Jing [2 ]
Tang, Jin [2 ]
Xiao, Minlei [1 ]
Dong, Ze [2 ]
Chen, Lin [2 ]
机构：
[1] Hunan Univ Humanities Sci & Technol, Sch Informat Sci & Engn, Loudi 417000, Peoples R China
[2] Hunan Univ, Key Lab Micro Nano Optoelect Devices, Minist Educ, Coll Comp Sci & Elect Engn, Changsha 410082, Hunan, Peoples R China
来源：
OPTICAL ENGINEERING | 2014年 / 53卷 / 09期
关键词：
coherent receiver; carrier phase estimation; eighth-order statistics; quadrature amplitude modulation; feed-forward; FEEDFORWARD CARRIER RECOVERY; TRANSMISSION; SYSTEMS;
D O I：
10.1117/1.OE.53.9.096109
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An improved eighth-order statistics (EOS) blind phase recovery method is proposed for high-order coherent modulation formats. The method uses a multistage feed-forward carrier phase recovery algorithm by combining an EOS blind phase estimate with a maximum-likelihood carrier phase estimate. Experimental results show that the proposed new algorithm can reduce the required computational effort by more than a factor of 3 for a 16-QAM system. (C) 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
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页数：5
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