Monitoring of OSNR Using Statistical Moments of Equalized Signal in 16-QAM Coherent Optical Receivers

被引：0
|
作者：
Faruk, Md. Saifuddin [1 ]
机构：
[1] Dhaka Univ Engn & Technol, Dept Elect & Elect Engn, Gazipur, Bangladesh
来源：
2012 7TH INTERNATIONAL CONFERENCE ON ELECTRICAL AND COMPUTER ENGINEERING (ICECE) | 2012年
关键词：
Coherent optical communication; digital signal processing; optical performance monitoring; adaptive equalization; FILTERS;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Among the wide spectrum of optical performance monitoring (OPM), optical signal-to-noise ratio (OSNR) monitoring is very important as it signify a direct measure of signal quality. In this paper, we propose a novel method of OSNR monitoring from the second- and fourth-order statistical moments of equalized signal in 16-QAM coherent optical receivers. The distinct statistical nature of carrier signal and noise enables such estimation. The proposed scheme is verified using computer simulation of 10-Gsymbols/s 16-QAM optical transmission systems. It is found that our scheme can estimate the OSNR with less that 0.5-dB error over a wide monitoring range.
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页数：3
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