Error floor behavior study of LDPC codes for concatenated codes design

Weigang Chen; Liuguo Yin; Jianhua Lu

doi:10.1117/12.774793

10 November 2007 Error floor behavior study of LDPC codes for concatenated codes design

Weigang Chen, Liuguo Yin, Jianhua Lu

Proceedings Volume 6795, Second International Conference on Space Information Technology; 67954J (2007) https://doi.org/10.1117/12.774793
Event: Second International Conference on Spatial Information Technology, 2007, Wuhan, China

Abstract

Error floor behavior of low-density parity-check (LDPC) codes using quantized decoding algorithms is statistically studied with experimental results on a hardware evaluation platform. The results present the distribution of the residual errors after decoding failure and reveal that the number of residual error bits in a codeword is usually very small using quantized sum-product (SP) algorithm. Therefore, LDPC code may serve as the inner code in a concatenated coding system with a high code rate outer code and thus an ultra low error floor can be achieved. This conclusion is also verified by the experimental results.

Citation Download Citation

Weigang Chen, Liuguo Yin, and Jianhua Lu "Error floor behavior study of LDPC codes for concatenated codes design", Proc. SPIE 6795, Second International Conference on Space Information Technology, 67954J (10 November 2007); https://doi.org/10.1117/12.774793

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