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Proceedings Paper

Error floor behavior study of LDPC codes for concatenated codes design
Author(s): Weigang Chen; Liuguo Yin; Jianhua Lu
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Paper 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.

Paper Details

Date Published: 10 November 2007
PDF: 6 pages
Proc. SPIE 6795, Second International Conference on Space Information Technology, 67954J (10 November 2007); doi: 10.1117/12.774793
Show Author Affiliations
Weigang Chen, Tsinghua Univ. (China)
Liuguo Yin, Tsinghua Univ. (China)
Jianhua Lu, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 6795:
Second International Conference on Space Information Technology

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