光通信技术2012，Vol.36Issue(4)：39-41,3.
LDPC码在相干光通信下的性能分析与研究
Analysis on the performance of LDPC codes under coherent optical communication
摘要
Abstract
For coherent optical fiber communication systems, phase-noise become one of the most factor that degrade decoding performance. The simulation results show that for 16QAM coherent optical communication systems the phase-noise of 500kHz Laser linewidth cause 1.5dB performance lose. To reduce the impact of phase noise, this paper also presents a revised phase-noise estimate based on LLR (log-likelihood ratio information) method. After simulation, the LLR correction decoding method can restore 0.5dB performance loss.关键词
相干光通信/LDPC码/相位噪声Key words
coherent optical communication/LDPC code/phase noise分类
信息技术与安全科学引用本文复制引用
王斯维,许渤..LDPC码在相干光通信下的性能分析与研究[J].光通信技术,2012,36(4):39-41,3.基金项目
国家自然科学基金项目(60602003)资助. （60602003）
