The serial message-passing schedule for LDPC decoding algorithms

Mingshan Liu; Shanshan Liu; Yuan Zhou; Xue Jiang

doi:10.1117/12.2228089

9 December 2015 The serial message-passing schedule for LDPC decoding algorithms

Mingshan Liu, Shanshan Liu, Yuan Zhou, Xue Jiang

Proceedings Volume 9817, Seventh International Conference on Graphic and Image Processing (ICGIP 2015); 98171E (2015) https://doi.org/10.1117/12.2228089
Event: Seventh International Conference on Graphic and Image Processing, 2015, Singapore, Singapore

Abstract

The conventional message-passing schedule for LDPC decoding algorithms is the so-called flooding schedule. It has the disadvantage that the updated messages cannot be used until next iteration, thus reducing the convergence speed . In this case, the Layered Decoding algorithm (LBP) based on serial message-passing schedule is proposed. In this paper the decoding principle of LBP algorithm is briefly introduced, and then proposed its two improved algorithms, the grouped serial decoding algorithm (Grouped LBP) and the semi-serial decoding algorithm .They can improve LBP algorithm's decoding speed while maintaining a good decoding performance.

Citation Download Citation

Mingshan Liu, Shanshan Liu, Yuan Zhou, and Xue Jiang "The serial message-passing schedule for LDPC decoding algorithms", Proc. SPIE 9817, Seventh International Conference on Graphic and Image Processing (ICGIP 2015), 98171E (9 December 2015); https://doi.org/10.1117/12.2228089

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