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Revisiting the complex correlation in a MIMO system

  • Chalmers University of Technology
  • RISE Research Institutes of Sweden

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

It is commonly believed that a complex correlation of up to 0.5 in magnitude is negligible for multiple-input multiple-output (MIMO) performances and that the correlation affects the diversity gain or throughput only via its magnitude. In this work, we show that when the number of antenna ports is larger than two, the phase of the correlation coefficient affects the diversity gain and that even small correlation can severely degrade the throughput performance of MIMO systems with full spatial multiplexing and no diversity gain. We assume maximum ratio combining (MRC) to investigate the correlation effect on diversity gain and zero-forcing (ZF) equalizer to study the correlation effect on the MIMO throughput.

Original languageEnglish
Title of host publication8th European Conference on Antennas and Propagation, EuCAP 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2735-2739
Number of pages5
ISBN (Electronic)9788890701849
DOIs
StatePublished - 2014
Externally publishedYes
Event8th European Conference on Antennas and Propagation, EuCAP 2014 - The Hague, Netherlands
Duration: 6 Apr 201411 Apr 2014

Publication series

Name8th European Conference on Antennas and Propagation, EuCAP 2014

Conference

Conference8th European Conference on Antennas and Propagation, EuCAP 2014
Country/TerritoryNetherlands
CityThe Hague
Period6/04/1411/04/14

Keywords

  • Correlation
  • Diversity
  • Maximum ratio combining (MRC)
  • Multiple-input multiple-ouput (MIMO)
  • Throughput
  • Zero-forcing (ZF)

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