Multi-Round Joint Belief Propagation Decoding with Perturbation for JSCC System Based on DP-LDPC Codes

Weiwei Lin,Zhiping Xu,Shaohua Hong,Lin Wang

2021 International Conference on Computer, Information and Telecommunication Systems (CITS)（2021）

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摘要

In this paper, a multi-round joint belief propagation (BP) decoding with perturbation algorithm is proposed for joint source-channel coding (JSCC) system based on double protograph low-density parity-check (DP-LDPC) codes to improve decoding performance. In the proposed algorithm, the joint BP decoding is concatenated with cyclic redundancy check (CRC). The reliability of each variable node (VN) i...

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关键词

Perturbation methods,Simulation,Bit error rate,Redundancy,Robustness,Parity check codes,Hardware

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