Downlink multiuser capacity of interference-limited MIMO systems

Huaiyu Dai, Andreas F. Molisch, H. Vincent Poor

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

In a companion paper [4], space-time layered architectures (BLAST) and turbo coding/processing techniques, which are effective for single-link transmission, are combined with multiuser detection (MUD) methods for combating intercell interference. It is shown that, depending on the channel configuration, linear MMSE or successive interference cancellation (SIC) can be the preferable MUD method. Based on this fact, an adaptive scheme is developed. In this paper, the downlink capacity of interference limited multiple-input multiple-output (MIMO) cellular systems is investigated. It is found that the obtained MUD capacity is excellent in high to medium SIR scenario, but still deteriorates in strong interference environments, leaving ample room for possible improvement through other techniques. The performance of the proposed adaptive MUD scheme in a standard cellular environment, both in the nonline-of-sight (NLOS) and the line-of-sight (LOS) case, is simulated, and the advantages over the standard V-BLAST scheme are quantified.

Original languageEnglish (US)
Title of host publication13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2002
Pages849-853
Number of pages5
DOIs
StatePublished - Dec 1 2002
Event13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2002 - Lisboa, Portugal
Duration: Sep 15 2002Sep 18 2002

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Volume2

Other

Other13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2002
CountryPortugal
CityLisboa
Period9/15/029/18/02

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Keywords

  • Adaptive detection
  • BLAST
  • Co-channel interference
  • MIMO systems
  • Multiuser detection
  • Turbo processing

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