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

Miu Yoong Leong; Knud J. Larsen; Gunnar Jacobsen; Sergei Popov; Darko Zibar; Sergey Sergeyev

doi:10.1109/LPT.2014.2385731

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

Miu Yoong Leong, Knud J. Larsen, Gunnar Jacobsen, Sergei Popov, Darko Zibar, Sergey Sergeyev

Aston Institute of Photonic Technologies (AiPT)

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	685-688
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	27
Issue number	7
Early online date	23 Dec 2014
DOIs	https://doi.org/10.1109/LPT.2014.2385731
Publication status	Published - 1 Apr 2015

Bibliographical note

© 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)

Keywords

block codes
communication systems
error correction codes
optical fiber communications
phase noise

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10.1109/LPT.2014.2385731

Interleavers and BCH codes for coherent DQPSK systems with laser phase noise
© 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.
Accepted author manuscript, 220 KB

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6995992

Cite this

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title = "Interleavers and BCH codes for coherent DQPSK systems with laser phase noise",

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.",

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AU - Sergeyev, Sergey

N1 - © 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)

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

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