High-SNR analytical performance of spatial multiplexing MIMO systems with CSI

Luis G. Ordóñez*, Daniel P. Palomar, Alba Pagès-Zamora, Javier Rodriguez Fonollosa

*Corresponding author for this work

Research output: Contribution to journalJournal Articlepeer-review

Abstract

In this paper, we investigate the average and outage performance of spatial multiplexing multiple-input multiple-output (MIMO) systems with channel state information at both sides of the link. Such systems result, for example, from exploiting the channel eigenmodes in multiantenna systems. Due to the complexity of obtaining the exact expression for the average bit error rate (BER) and the outage probability, we derive approximations in the high signal-to-noise ratio (SNR) regime assuming an uncorrelated Rayleigh flat-fading channel. More exactly, capitalizing on previous work by Wang and Giannakis, the average BER and outage probability versus SNR curves of spatial multiplexing MIMO systems are characterized in terms of two key parameters: the array gain and the diversity gain. Finally, these results are applied to analyze the performance of a variety of linear MIMO transceiver designs available in the literature.

Original languageEnglish
Pages (from-to)5447-5463
Number of pages17
JournalIEEE Transactions on Signal Processing
Volume55
Issue number11
DOIs
Publication statusPublished - Nov 2007

Keywords

  • Channel eigenmodes
  • Diversity gain
  • Linear MIMO transceivers
  • Ordered eigenvalues
  • Spatial multiplexing
  • Wishart

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