首页 | 本学科首页   官方微博 | 高级检索  
     


Low-complexity BCH codes with optimized interleavers for DQPSK systems with laser phase noise
Authors:Email author" target="_blank">Miu?Yoong?LeongEmail author  Knud?J?Larsen  Gunnar?Jacobsen  Darko?Zibar  Sergey?Sergeyev  Sergei?Popov
Affiliation:1.Acreo Swedish ICT,Stockholm,Sweden;2.KTH Royal Institute of Technology,Stockholm,Sweden;3.Technical University of Denmark (DTU),Kgs. Lyngby,Denmark;4.Aston University,Birmingham,UK
Abstract:The presence of high phase noise in addition to additive white Gaussian noise in coherent optical systems affects the performance of forward error correction (FEC) schemes. In this paper, we propose a simple scheme for such systems, using block interleavers and binary Bose–Chaudhuri–Hocquenghem (BCH) codes. The block interleavers are specifically optimized for differential quadrature phase shift keying modulation. We propose a method for selecting BCH codes that, together with the interleavers, achieve a target post-FEC bit error rate (BER). This combination of interleavers and BCH codes has very low implementation complexity. In addition, our approach is straightforward, requiring only short pre-FEC simulations to parameterize a model, based on which we select codes analytically. We aim to correct a pre-FEC BER of around \(10^{-3}\). We evaluate the accuracy of our approach using numerical simulations. For a target post-FEC BER of \(10^{-6}\), codes selected using our method result in BERs around 3\(\times \) target and achieve the target with around 0.2 dB extra signal-to-noise ratio.
Keywords:
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号