Modified Iterative Two-Stage Hybrid Decoding Algorithm for Low-Density Parity-Check (LDPC) Codes

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Executive Summary

This paper considers a modified iterative version of the two-stage hybrid algorithm for decoding Low-Density Parity Check (LDPC) codes. The hybrid-decision scheme is a decoding scheme used that combines two iterative decoding algorithms for decoding LDPC codes. This scheme is suitable for many applications such as audio and video transmission that are sensitive to time. The hybrid-decision scheme mixes between the characteristics of the soft-decision decoding scheme and the hard-decision decoding scheme to reduce the computational complexity of the whole decoding algorithm. The modification proposed in this paper is applied to the Implementation-Efficient Reliability Ratio Weighted Bit-Flipping (IERRWBF) algorithm which represents hard-decision scheme in the hybrid algorithm.

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