Modified Decoding Algorithm of LDPC Codes
Xucan Chen · Dianzi Ke-ji Daxue xuebao · 2010
The simple algorithms based on belief propagation algorithm of LDPC codes are studied.A modified algorithm which integrates Row Message Passing schedule with Offset Min-Sum algorithm for decoding LDPC codes is proposed.The proposed algorithm facilitates hardware implementation because it improves the convergence property while its computation complexity is the same as Offset Min-Sum algorithm,and it reduces the storage for the optimized memory method.The simulation results demonstrate that the proposed algorithm reduces the average iterations and quantization implementation memory.