光通信系统中一种新颖FEC码的仿真分析  

Simulation Analysis on a novel FEC Code for Optical Communication Systems

作　　者：叶文伟[1] 

机构地区：[1]重庆邮电大学图书馆,重庆400065

出　　处：《半导体光电》2012年第4期561-565,共5页Semiconductor Optoelectronics

基　　金：国家自然科学基金项目(61071117;61003256);重庆市自然科学基金项目(2010BB2409);重庆市教委项目(KJ110519)

摘　　要：基于分组Turbo码(BTC)提出光通信系统中一种新颖前向纠错(FEC)码型,即RS(63,60)×RS(63,60)码。仿真表明,在误码率为10-12时,迭代8次的该BTC与ITU-T G.975.1中迭代3次的RS(255,239)+CSOC(k0/n0=6/7,J=8)相比,其净编码增益要相应增加0.34dB。分析表明该BTC具有分量码短、编/译码速度快的特点,不仅减小了软/硬件实现的复杂度,而且减小了编/译码带来的时延。因而该新BTC能较好地适用于光通信系统。Based on block turbo code（BTC）, a novel forward error correction（FEC） code of RS（63,60）× RS（63,60） code is proposed for optical communication systems. The simulation results show that the net coding gain（NCG） of RS（63,60）× RS（63,60） code at the eighth iteration is 0.34 dB more than that of RS（255,239）＋CSOC（k0/no=6/7,J=8） code in ITU-T G. 975.1 at the third iteration for the bit error rate（BER） of 10-12. The analysis shows that the novel BTC has the characteristics of shorter component code and rapid encoding/decoding speed, not only reducing the complexity for implementing the software/hardware implementation but also the time delay for the encoding/decoding. As a result, the novel BTC code can better suitable for optical communication systems.

关 键 词：光通信系统 超强前向纠错 分组TURBO码 净编码增益 误码率 

分 类 号：TN929.11[电子电信—通信与信息系统]