FEC for high-speed optical transmission

Changsong Xie; Yu Zhao; Zhiyu Xiao; Deyuan Chang; Fan Yu

doi:10.1117/12.903872

14 December 2011 FEC for high-speed optical transmission

Changsong Xie, Yu Zhao, Zhiyu Xiao, Deyuan Chang, Fan Yu

Proceedings Volume 8309, Optical Transmission Systems, Subsystems, and Technologies IX; 83091R (2011) https://doi.org/10.1117/12.903872
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, Shanghai, China

Abstract

This paper will at first explain the requirement of high speed optical transport network on forward error correction (FEC) codes in terms of code length, code rate, coding gain, burst error correction capability, error floor, latency, coding/decoding complexity. Then, a few code schemes used in current optical transport systems such as Reed-Solomon codes recommended by ITU-T G.709 and enhanced FECs listed in ITU-T, G.975.1 are introduced. Advanced codes recently developed by vendors used for 100Gbps systems and their performances are summarized. Features and special requirements on soft decoding FEC (SDFEC) especially inter-working between SDFEC and equalizer, with and without deferential coding etc. are analyzed. Some perspectives of future FEC for optical transport are also given.

Citation Download Citation

Changsong Xie, Yu Zhao, Zhiyu Xiao, Deyuan Chang, and Fan Yu "FEC for high-speed optical transmission", Proc. SPIE 8309, Optical Transmission Systems, Subsystems, and Technologies IX, 83091R (14 December 2011); https://doi.org/10.1117/12.903872

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