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Augmented decoders for LDPC codes

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posted on 2023-05-19, 20:47 authored by Rigby, AR, Jan OlivierJan Olivier, Myburgh, HC, Xiao, C, Brian SalmonBrian Salmon
The 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 Networking

Volume

2018

Article number

189

Number

189

Pagination

1-9

ISSN

1687-1499

Department/School

School of Engineering

Publisher

SpringerOpen

Place of publication

Germany

Rights 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

Socio-economic Objectives

Environmental policy, legislation and standards not elsewhere classified

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