New constructions of variable-rate QC-LDPC codes by adding column-blocks or removing row-blocks

Chi Jen Wu, Chung-Hsuan Wang, Chi Chao Chao

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

Abstract

In this paper, new constructions of variable-rate quasi-cyclic low-density parity-check (QC-LDPC) codes are proposed. The criteria which guarantee that a higher-rate QC-LDPC code can be obtained by adding column-blocks to or removing row-blocks from the parity-check matrix of a given lower-rate QC-LDPC code are derived. Based on these criteria, new families of variable-rate QC-LDPC codes can be constructed. Simulation results show that the constructed codes provide a variety of error-protection capabilities against different channel conditions.

Original languageEnglish
Title of host publicationProceedings of 2016 International Symposium on Information Theory and Its Applications, ISITA 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages389-393
Number of pages5
ISBN (Electronic)9784885523090
StatePublished - 2 Feb 2017
Event3rd International Symposium on Information Theory and Its Applications, ISITA 2016 - Monterey, United States
Duration: 30 Oct 20162 Nov 2016

Publication series

NameProceedings of 2016 International Symposium on Information Theory and Its Applications, ISITA 2016

Conference

Conference3rd International Symposium on Information Theory and Its Applications, ISITA 2016
CountryUnited States
CityMonterey
Period30/10/162/11/16

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