Probabilistic Shaping for Asymmetric Channels and Low-Density Parity-Check Codes

Thomas Wiegart, Linfang Wang, Diego Lentner, Richard D. Wesel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

An algorithm is proposed to encode low-density parity-check (LDPC) codes into codewords with a non-uniform distribution. This enables power-efficient signalling for asymmetric channels. We show gains of 0.9 dB for additive white Gaussian noise (AWGN) channels with on-off keying modulation using 5G LDPC codes.

Original languageEnglish
Title of host publication2023 12th International Symposium on Topics in Coding, ISTC 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350326116
DOIs
StatePublished - 2023
Event12th International Symposium on Topics in Coding, ISTC 2023 - Brest, France
Duration: 4 Sep 20238 Sep 2023

Publication series

Name2023 12th International Symposium on Topics in Coding, ISTC 2023

Conference

Conference12th International Symposium on Topics in Coding, ISTC 2023
Country/TerritoryFrance
CityBrest
Period4/09/238/09/23

Keywords

  • asymmetric signalling.
  • forward-error correction
  • LDPC codes
  • probabilistic shaping

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