Further results on LDPC decoding scheduling for faster convergence

Huang Chang Lee, Yen Ming Chen, Yeong Luh Ueng, Jen Yuan Hsu

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

Abstract

This paper presents a listed maximum mutual information increase (LM2I2)-based algorithm, which is used to arrange low-density parity-check (LDPC) decoding schedules for faster convergence. The increments in the predicted mutual information for the messages to be updated is used to guide the arrangement of the fixed decoding schedule. Consequently, by looking ahead for several decoding stages, a high-order prediction can be realized. For each decoding stages, the searching branches can be trimmed to fit a predetermined size of list, and the efficiency in the selection of update candidates is thus increased. Comparing to previous algorithms, the proposed LM2I2-based algorithm can be used to arrange the decoding schedules converged in the same speed with lower complexity, or accelerate the convergence with the same computation cost.

Original languageEnglish
Title of host publication2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467372183
DOIs
StatePublished - 26 04 2016
Externally publishedYes
Event10th International Conference on Information, Communications and Signal Processing, ICICS 2015 - Singapore, Singapore
Duration: 02 12 201504 12 2015

Publication series

Name2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015

Conference

Conference10th International Conference on Information, Communications and Signal Processing, ICICS 2015
Country/TerritorySingapore
CitySingapore
Period02/12/1504/12/15

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

Keywords

  • Belief propagation
  • error-control codes
  • low-density parity-check (LDPC) codes. list decoding
  • messages-passing schedule

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