An Improved Belief-Propagation Algorithm with Channel Estimation of LDPC under Block Fading Channels

Deng Jian-min; Yin Chang-chuan; Ji Hong; Yue Guang-xin

Volume 27 Issue 4

Apr. 2005

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Article Navigation > Journal of Electronics & Information Technology > 2005 > 27(4): 519-522

Deng Jian-min, Yin Chang-chuan, Ji Hong, Yue Guang-xin. An Improved Belief-Propagation Algorithm with Channel Estimation of LDPC under Block Fading Channels[J]. Journal of Electronics & Information Technology, 2005, 27(4): 519-522.

Citation:

Deng Jian-min, Yin Chang-chuan, Ji Hong, Yue Guang-xin. An Improved Belief-Propagation Algorithm with Channel Estimation of LDPC under Block Fading Channels[J]. Journal of Electronics & Information Technology, 2005, 27(4): 519-522.

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An Improved Belief-Propagation Algorithm with Channel Estimation of LDPC under Block Fading Channels

Received Date: 2003-11-13
Rev Recd Date: 2004-06-02
Publish Date: 2005-04-19

Abstract

Abstract

Firstly it is proved by simulation that the Low Density Parity Check(LDPC) code has sound performance under block fading channel when decoded by general belief-propagation algorithm. Then based on its special iterative nature, the improved belif-propagation algorithm is proposed under block fading channel with channel estimation in every iterative step. The simulation demonstrates that the proposed algorithm can effectively reduce the iterative times of decoding.

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References(1)

References

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