Interleavers and BCH codes for coherent DQPSK systems with laser phase noise

Leong, Miu Yoong, Larsen, Knud J., Jacobsen, Gunnar, Popov, Sergei, Zibar, Darko and Sergeyev, Sergey (2015). Interleavers and BCH codes for coherent DQPSK systems with laser phase noise. IEEE Photonics Technology Letters, 27 (7), pp. 685-688.

Abstract

The relatively high phase noise of coherent optical systems poses unique challenges for forward error correction (FEC). In this letter, we propose a novel semianalytical method for selecting combinations of interleaver lengths and binary Bose-Chaudhuri-Hocquenghem (BCH) codes that meet a target post-FEC bit error rate (BER). Our method requires only short pre-FEC simulations, based on which we design interleavers and codes analytically. It is applicable to pre-FEC BER ∼10-3, and any post-FEC BER. In addition, we show that there is a tradeoff between code overhead and interleaver delay. Finally, for a target of 10-5, numerical simulations show that interleaver-code combinations selected using our method have post-FEC BER around 2× target. The target BER is achieved with 0.1 dB extra signal-to-noise ratio.

Publication DOI: https://doi.org/10.1109/LPT.2014.2385731
Divisions: Engineering & Applied Sciences > Aston Institute of Photonics Technology
Additional Information: © 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Funding: Vetenskapsrådet under Grant 0379801, in part by EPSRC UNLOC EP/J017582/1, and in part by FP7-PEOPLE-2012-IAPP (GRIFFON, 324391)
Uncontrolled Keywords: block codes,communication systems,error correction codes,optical fiber communications,phase noise,Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Full Text Link: http://ieeexplo ... rnumber=6995992
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Date: 2015-04-01
Authors: Leong, Miu Yoong
Larsen, Knud J.
Jacobsen, Gunnar
Popov, Sergei
Zibar, Darko
Sergeyev, Sergey ( 0000-0002-1515-5019)

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