Stability outage analysis for LDPC codes

Dieter Duyck, Joseph J. Boutros, Marc Moeneclaey

Research output: Contribution to journalArticle

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Abstract

For a given channel instance and a fixed LDPC ensemble, a stability outage event is defined by the density evolution being unstable at the origin. The probability of such an event, referred to as Stability Outage Probability, is a useful lower bound for the word error rate. We formulate the stability outage probability for block fading channels and we introduce the stability diversity order. As a direct application, we show how the class of capacity-achieving ensembles on the erasure channel is bounded away from the outage limit on a block fading channel.

Original languageEnglish
Article number6024417
Pages (from-to)1231-1233
Number of pages3
JournalIEEE Communications Letters
Volume15
Issue number11
DOIs
Publication statusPublished - 1 Nov 2011

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Keywords

  • LDPC codes
  • block fading channels
  • outage probability
  • stability condition

ASJC Scopus subject areas

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering

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