Randomly Punctured Spatially Coupled LDPC Codes

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

In this paper, we study random puncturing of protograph-based spatially coupled low-density parity-check (SC- LDPC) code ensembles. We show that, with respect to iterative decoding threshold, the strength and suitability of an LDPC code ensemble for random puncturing over the binary erasure channel (BEC) is completely determined by a single constant that depends only on the rate and iterative decoding threshold of the mother code ensemble. We then use this analysis to show that randomly punctured SC-LDPC code ensembles display near capacity thresholds for a wide range of rates. We also perform an asymptotic minimum distance analysis and show that, like the SC-LDPC mother code ensemble, the punctured SC-LDPC code ensembles are also asymptotically good. Finally, we present some simulation results that confirm the excellent decoding performance promised by the asymptotic results.

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Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • rate-compatible, puncturing, LDPC convolutional codes, spatial coupling, LDPC codes
Original languageEnglish
Title of host publication[Host publication title missing]
PublisherIEEE--Institute of Electrical and Electronics Engineers Inc.
Publication statusPublished - 2014
Publication categoryResearch
Peer-reviewedYes
EventInternational Symposium on Turbo Codes & Iterative Information Processing (ISTC), 2014 - Bremen, Germany
Duration: 2014 Aug 182014 Aug 22
Conference number: 8

Conference

ConferenceInternational Symposium on Turbo Codes & Iterative Information Processing (ISTC), 2014
CountryGermany
CityBremen
Period2014/08/182014/08/22

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