Pilot-Aided Optical Signal-to-Noise Ratio Estimation for Direct-Detection OFDM Systems

被引：12
|
作者：
Gao, Shuang [1 ]
Huang, Lingchen [2 ]
Chan, Chun-Kit [1 ]
机构：
[1] Chinese Univ Hong Kong, Dept Informat Engn, Hong Kong, Hong Kong, Peoples R China
[2] Zhejiang Univ, Ctr Opt & Electromagnet Res, Hangzhou 310027, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2015年 / 27卷 / 11期
关键词：
OSNR; optical performance monitoring; direct-detection optical OFDM; TRANSMISSION; RECEIVERS; NETWORKS;
D O I：
10.1109/LPT.2015.2413365
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：
We propose an optical signal-to-noise ratio (OSNR) estimation method for direct-detection optical orthogonal frequency division multiplexing (DDO-OFDM) systems by calculating the electrical SNR of one pilot subcarrier based on correlation. Simulation and experiment are conducted to verify this OSNR estimation method in a 15-Gb/s DDO-OFDM system. The maximum OSNR estimation error is 0.8 dB within an OSNR range of 8-28 dB for 100-and 200-km transmission distances.
引用
收藏
页码：1165 / 1168
页数：4
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