Performance of BLAST over frequency-selective wireless communication channels

Nejib Boubaker, Khaled Ben Letaief, Ross D. Murch

Research output: Contribution to journalArticle

34 Citations (Scopus)


Currently one of the most promising techniques for realizing high spectral efficiencies over wireless links is Vertical-Bell Laboratories Layered Space-Time (V-BLAST). This technique employs multi-element antenna arrays at both the transmitter and receiver to increase the spectral efficiency. In this letter, and in contrast to previous work, we consider the performance of V-BLAST in a frequency-selective fading channel. In particular, we investigate the effect of delay spread on V-BLAST with various QAM modulation formats and different numbers of transmit and receive antennas for two types of delay spread distributions. Comparisons with a flat-fading channel are also provided.

Original languageEnglish
Pages (from-to)196-199
Number of pages4
JournalIEEE Transactions on Communications
Issue number2
Publication statusPublished - 1 Feb 2002



  • Antenna arrays
  • Frequency-selective fading
  • Layered space-time processing
  • Spectral efficiency
  • Time delay spread
  • Wireless systems

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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