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Multilevel Coding with a Class of Decomposable Finite-Geometry LDPC Codes

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4 Author(s)
Ya Liu ; Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou ; Huifang Chen ; Lei Xie ; Ming Gao

This paper proposes a class of decomposable LDPC codes based on finite geometry EG(m, ps) over bandlimited AWGN channel. These LDPC codes defined as the origin LDPC codes are decomposed into a few small LDPC codes as component codes in multilevel coding. It is shown that the origin LDPC codes demand generic M-ary Min-Sum algorithm while the component codes only require a few binary Min-Sum algorithm implementations in multi-stages decoding. The method proposed simplifies the decoding complexity.

Published in:

Circuits and Systems for Communications, 2008. ICCSC 2008. 4th IEEE International Conference on

Date of Conference:

26-28 May 2008

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