Design of Modified Minsum Decoder of LDPC Code in the Simplified Difference-Domain

Zhong Xun Wang; Xing Long Gao

doi:10.4028/www.scientific.net/AMM.385-386.1576

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 385-386Design of Modified Minsum Decoder of LDPC Code in...

Design of Modified Minsum Decoder of LDPC Code in the Simplified Difference-Domain

Abstract:

In this paper, we propose the modified minsum decoding algorithm of LDPC(Low-Density Parity-Check) code in the simplified difference-domain on the basis of detailed analysis of LDPC decoding algorithm in difference-domain. The simulation indicates that the proposed decoding algorithm offers almost no performance degradation compared with the BP(Belief Propagation) decoding algorithm in log-domain and the decoding algorithm in difference-domain and offers better performance than minsum decoding algorithm in log-domain and greatly reduces the computation complexity in AWGN(Additive White Gaussian Noise) channel and under BPSK(Binary Phase Shift Keying) modulation.

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Periodical:

Applied Mechanics and Materials (Volumes 385-386)

Pages:

1576-1581

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.385-386.1576

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Online since:

August 2013

Authors:

Zhong Xun Wang, Xing Long Gao

Keywords:

BP in Log-Domain, LDPC Codes, Modified Minsum in Simplified Difference-Domain

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