Decoding Scheduling for Unequal Error Protection Quasi-Cyclic Low-Density Parity-Check Codes

Jia Jyun Wu, Chung Hsuan Wang, Chi Chao Chao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Algebraic constructions of quasi-cyclic (QC) low-density parity-check (LDPC) codes with unequal error protection (UEP) capabilities have recently been proposed, which can provide different error-correcting capabilities for different parts of the coded bits. However, conventional decoding algorithms are not designed for LDPC codes with UEP. In this paper, we propose three decoding schemes for UEP QC-LDPC codes extended from existing scheduling strategies, tailored to the special structures of the parity-check matrices. Simulation results show that the proposed schemes can provide improved error rate performance especially for coded bits on low protection levels. The decoding convergence can also be accelerated, thereby reducing the computational complexity.

Original languageEnglish
Title of host publication2019 9th International Workshop on Signal Design and its Applications in Communications, IWSDA 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728116693
DOIs
StatePublished - Oct 2019
Event9th International Workshop on Signal Design and its Applications in Communications, IWSDA 2019 - Dongguan, China
Duration: 20 Oct 201924 Oct 2019

Publication series

Name2019 9th International Workshop on Signal Design and its Applications in Communications, IWSDA 2019

Conference

Conference9th International Workshop on Signal Design and its Applications in Communications, IWSDA 2019
CountryChina
CityDongguan
Period20/10/1924/10/19

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  • Cite this

    Wu, J. J., Wang, C. H., & Chao, C. C. (2019). Decoding Scheduling for Unequal Error Protection Quasi-Cyclic Low-Density Parity-Check Codes. In 2019 9th International Workshop on Signal Design and its Applications in Communications, IWSDA 2019 [8966090] (2019 9th International Workshop on Signal Design and its Applications in Communications, IWSDA 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IWSDA46143.2019.8966090