摘要
将改进型LDPC编码技术与多进制相位调制技术相结合应用于CO-OFDM系统中,并通过采用光纤信道的简化模型,基于Matlab仿真软件对其进行了实验仿真分析。结果表明,对于CO-OFDM系统,不同的编码调制方式组合对系统的传输容量、误码率、光信噪比和抗色散能力等影响较大。
The improved LDPC coding techniques combined with ary modulation techniques are used in CO-OFDM system.By using a simplified model of the fibre channel,experimental simulations are based on MATLAB simulation software.The results show that the composition of different coding and modulation scheme will have a greater impact on the transmission capacity of the system,the bit error rate,the optical signal-to-noise ratio and the resistance to dispersion for coherent optical OFDM system.
出处
《光通信技术》
CSCD
北大核心
2013年第5期10-12,共3页
Optical Communication Technology
基金
区域光纤通信网与新型光通信系统国家重点实验室开放课题(2011GZKF031109)资助
关键词
LDPC码
CO-OFDM系统
调制技术
性能分析
LDPC codes
coherent optical OFDM system
modulation techniques
performance analysis
