Decoding Algorithm of LDPC for 40 Gb/s Decoding Algorithm in DQPSK Optical Communication System
Xiaoguang Zhang · Bandaoti guangdian · 2013
For 40 Gb/s DQPSK optical communication transmission system,an information initial formula of decoding algorithm for low-density parity-check(LDPC) codes is proposed,and the decoding algorithm based on belief propagation(BP) is improved.Furthermore,the numerical simulation and the performance analysis and comparison are implemented.Then the advanced decoding algorithm which has a good tradeoff between performance and complexity is obtained.