Precoding for outage probability minimization on block fading channels

Dieter Duyck, Joseph Boutros, Marc Moeneclaey

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The outage probability limit is a fundamental and achievable lower bound on the word error rate of coded communication systems affected by fading. This limit is mainly determined by two parameters: the diversity order and the coding gain. With linear precoding, full diversity on a block fading channel can be achieved without error-correcting code. However, the effect of precoding on the coding gain is not well known, mainly due to the complicated expression of the outage probability. Using a geometric approach, this paper establishes simple upper bounds on the outage probability, the minimization of which yields to precoding matrices that achieve very good performance. For discrete alphabets, it is shown that the combination of constellation expansion and precoding is sufficient to closely approach the minimum possible outage achieved by an i.i.d. Gaussian input distribution, thus essentially maximizing the coding gain.

Original languageEnglish
Article number6595547
Pages (from-to)8250-8266
Number of pages17
JournalIEEE Transactions on Information Theory
Volume59
Issue number12
DOIs
Publication statusPublished - 1 Dec 2013

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Outages
Fading channels
coding
communication system
Communication systems
performance

Keywords

  • Block fading channels
  • multidimensional mapping
  • outage probability
  • precoding

ASJC Scopus subject areas

  • Information Systems
  • Computer Science Applications
  • Library and Information Sciences

Cite this

Precoding for outage probability minimization on block fading channels. / Duyck, Dieter; Boutros, Joseph; Moeneclaey, Marc.

In: IEEE Transactions on Information Theory, Vol. 59, No. 12, 6595547, 01.12.2013, p. 8250-8266.

Research output: Contribution to journalArticle

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