Hybrid Decoding Algorithm for Low-density Parity-check Codes

Authors

Guowei Qu, Yantai Nanshan University, Yantai 265713, China;
Xiaoping Song, Yantai Nanshan University, Yantai 265713, China;

Abstract

Abstract: A hybrid decoding algorithm for low-density parity-check (LDPC) codes based on the soft-decision iterative decoding method and the erasure decoding method is proposed. If a decoding error is detected when the maximum iteration number of the soft-decision iterative decoding is reached, a decision is made on each bit whether it is zero or one or an erasure according to the cumulative reliability of the bit in the iterative process. Then the decision result is decoded with erasure decoding. Simulation results on random LDPC codes with moderate length indicate that the proposed hybrid decoding algorithm outperforms the traditional soft-decision iterative decoding algorithm at the expense of little average complexity increases by suitably setting the maximum iteration number of the iterative decoding in the hybrid decoding algorithm.

Recommended Citation

Qu, Guowei and Song, Xiaoping (2019) "Hybrid Decoding Algorithm for Low-density Parity-check Codes," Journal of System Simulation: Vol. 30: Iss. 10, Article 49.
DOI: 10.16182/j.issn1004731x.joss.201810049
Available at: https://dc-china-simulation.researchcommons.org/journal/vol30/iss10/49

First Page

4009

Revised Date

2017-02-15

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201810049

Last Page

4013

CLC

TN911.22

Recommended Citation

Qu Guowei, Song Xiaoping. Hybrid Decoding Algorithm for Low-density Parity-check Codes[J]. Journal of System Simulation, 2018, 30(10): 4009-4013.

DOI

10.16182/j.issn1004731x.joss.201810049