Construction of Parity-Check Matrices for Non-Binary LDPC Codes

Conference: TURBO - CODING - 2006 - 4th International Symposium on Turbo Codes & Related Topics; 6th International ITG-Conference on Source and Channel Coding
04/03/2006 - 04/07/2006 at Munich, Germany

Proceedings: TURBO - CODING - 2006

Pages: 4Language: englishTyp: PDF

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Kimura, Dai (Fujitsu Laboratories Limited, Japan)
Guilloud, Frédéric; Pyndiah, Ramesh (ENST Bretagne, France)

This paper presents a novel construction method for parity-check matrices of non-binary LDPC codes which selects nearly optimum non-zero elements in the parity-check matrices. The proposed method can improve the codeweight distribution of non-binary LDPC codes of column weight 2. The decoding performance of the non-binary LDPC codes using the parity-check matrices constructed by the proposed method can outperform that of the random method significantly.