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Augmented decoders for LDPC codes
Citation
Rigby, AR and Olivier, JC and Myburgh, HC and Xiao, C and Salmon, BP, Augmented decoders for LDPC codes, EURASIP Journal on Wireless Communications and Networking Article 189. ISSN 1687-1499 (2018) [Refereed Article]
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Copyright Statement
Copyright 2018 the authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/
DOI: doi:10.1186/s13638-018-1203-5
Abstract
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.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | LDPC codes, BP decoding, trapping sets, error floor mitigation |
| Research Division: | Engineering |
| Research Group: | Electrical and Electronic Engineering |
| Research Field: | Circuits and Systems |
| Objective Division: | Environment |
| Objective Group: | Environmental Policy, Legislation and Standards |
| Objective Field: | Environmental Policy, Legislation and Standards not elsewhere classified |
| Author: | Rigby, AR (Mr Alex Rigby) |
| Author: | Olivier, JC (Professor JC Olivier) |
| Author: | Salmon, BP (Dr Brian Salmon) |
| ID Code: | 128015 |
| Year Published: | 2018 |
| Web of Science® Times Cited: | 1 |
| Deposited By: | Engineering |
| Deposited On: | 2018-08-28 |
| Last Modified: | 2018-09-10 |
| Downloads: | 3 View Download Statistics |
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