Impact of antenna correlation on the capacity of multiantenna channels

Antonia M. Tulino, Angel Lozano, Sergio Verdú

Research output: Contribution to journalArticlepeer-review

286 Scopus citations

Abstract

This paper applies random matrix theory to obtain analytical characterizations of the capacity of correlated multi-antenna channels. The analysis is not restricted to the popular separable correlation model, but rather it embraces a more general representation that subsumes most of the channel models that have been treated in the literature. For arbitrary signal-to-noise ratios (SNR), the characterization is conducted in the regime of large numbers of antennas. For the low- and high-SNR regions, in turn, we uncover compact capacity expansions that are valid for arbitrary numbers of antennas and that shed insight on how antenna correlation impacts the tradeoffs among power, bandwidth, and rate.

Original languageEnglish (US)
Pages (from-to)2491-2509
Number of pages19
JournalIEEE Transactions on Information Theory
Volume51
Issue number7
DOIs
StatePublished - Jul 2005

All Science Journal Classification (ASJC) codes

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

Keywords

  • Antenna correlation
  • Channel capacity
  • Fading channels
  • Multiantenna arrays
  • Random matrices

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