基于LDPC的大气湍流信道FSO通信奇偶校验矩阵度分布映射方法

2014 13th International Conference on Optical Communications and Networks (ICOCN) Pub Date : 2014-12-18 DOI:10.1109/ICOCN.2014.6987132

Fei Xiao, Lijia Zhang, Bo Liu, Qi Zhang, Yongjun Wang, Jianglong Zheng, Qinghua Tian, Xiaoli Yin, X. Xin

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引用次数: 0

摘要

提出了一种基于不规则QC-LDPC的FSO通信中奇偶校验矩阵的度分布映射方法。在信道编码之前，使用映射法选择与大气信道估计反馈相对应的奇偶校验矩阵的适当分布。研究了奇偶校验矩阵最优分布在不同湍流强度下的误码率性能。与没有优化度分布的旧编码方案相比，新编码方案大大提高了传输性能。

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Degree distribution mapping method of parity check matrix in LDPC based FSO communication through atmospheric turbulence channel

A degree distribution mapping method of parity check matrix in irregular QC-LDPC based FSO communication is proposed. Before channel coding, use the mapping method to select the appropriate distribution of the parity check matrix corresponding to atmospheric channel estimation feedback. BER performance of the optimal distribution of the parity check matrix in different turbulence intensity has been made. Compared to old coding schemes without optimizing degree distribution, the new one have greatly improved the transmission performance.

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来源期刊

2014 13th International Conference on Optical Communications and Networks (ICOCN)

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