Outage probability approximation for the Wiener filter SINR in MIMO systems

Abla Kammoun*, Malika Kharouf, Walid Hachem, Jamal Najim

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

This paper studies the fluctuations of the post-processing SNR at the output of the linear MMSE receiver in (receive) correlated multiple input multiple output (MIMO) systems. Although it is known that asymptotically, the SNR behaves like a Gaussian random variable, this approximation may yield to inaccurate estimates for small dimension. In order to circumvent this, we use Gamma and Generalized Gamma distributions to approximate the probability distribution of the SINR. The first three asymptotic moments of the SNR are computed and are used to adjust Gamma and Generalized Gamma distributions and to accurately approximate the Bit Error Rate (BER) and its outage probability. We provide simulations which strongly support the Gamma approximation, even for a small number of emitting/receive antennas.

Original languageEnglish (US)
Pages171-175
Number of pages5
DOIs
StatePublished - Dec 1 2008
Event2008 IEEE 9th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2008 - Recife, Brazil
Duration: Jul 6 2008Jul 9 2008

Other

Other2008 IEEE 9th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2008
CountryBrazil
CityRecife
Period07/6/0807/9/08

Keywords

  • Bit error rate
  • Large random matrices
  • MIMO systems
  • Outage probability

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Information Systems

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