摘要
远程光纤通信系统需要高效、高性能的前向纠错码。采用组合设计构造了RA码交织器，得到无4环、高码率的系统规则RA码，将其应用在远程光纤通信系统中，在三种光纤信道模型下进行了仿真。结果表明，基于组合设计的RA码在光纤信道中具有较好的性能，且在x^2信道模型下的性能优于高斯信道。
Long haul optical fiber communication systems need forward error correction codes with high efficiency and good performance. In this paper, we present a regular RA code in which interleaver is obtained from combinatorial design. The new RA code is free of 4-cycles and with very, high rate. Then the RA code is applied to optical transmission systems and simulated under three optical fiber channel models. The results shows good performance of System RA codes in long haul optical fiber system. The decoder on Chi-square model has better performance than of Gaussian model.
出处
《应用激光》
CSCD
北大核心
2011年第2期177-180,共4页
Applied Laser
关键词
规则RA码
信道模型
组合设计
4环
regular repeat-accumulate code
Chi-square channel model
combinatorial design
4-cycle
