128015 - Augmented decoders for LDPC codes.pdf (1.09 MB)
Augmented decoders for LDPC codes
journal contribution
posted on 2023-05-19, 20:47 authored by Rigby, AR, Jan OlivierJan Olivier, Myburgh, HC, Xiao, C, Brian SalmonBrian SalmonThe performance of a belief propagation decoder for low-density parity-check codes is limited by the presence of trapping sets in the code’s graph. This leads to an error floor at higher signal-to-noise ratios. We propose the use of an augmented decoder which operates by iteratively decoding on a set of graphs which have a subset of repeated check nodes. We compare the augmented decoder to other modified belief propagation decoders that have been presented in the literature. We show that for all the codes considered, the augmented decoder yields the best frame error rate in the error floor region.
History
Publication title
EURASIP Journal on Wireless Communications and NetworkingVolume
2018Article number
189Number
189Pagination
1-9ISSN
1687-1499Department/School
School of EngineeringPublisher
SpringerOpenPlace of publication
GermanyRights statement
Copyright 2018 the authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/Repository Status
- Open