Exploiting transmit correlation and mutual coupling in MIMO transmitters

Christos Masouros, Jianling Chen, Kenneth Tong, Mathini Sellathurai, Tharmalingam Ratnarajah

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

Abstract

We explore the potential of advantageously utilizing transmit correlation and mutual coupling in large-scale multiple input multiple output (MIMO) transmitters using low complexity closed form precoding techniques. Towards this end, we investigate the effect of increasing the number of antenna elements in a fixed transmitter space. This gives rise to two contradicting phenomena: the reduction of spatial diversity due to reducing the separation between antennas and the increase in transmit diversity by increasing the number of elements. We explore a precoding technique that exploits the increasing transmit correlation and mutual coupling to improve the received signal power. We investigate densely deployed uniform linear antenna arrays modeled in the CST Microwave Studio. The simulations show the somewhat surprising result that, by reducing the separations between the antennas to significantly less than the transmit wavelength to fit more antennas, improved performance is obtained.1

Original languageEnglish
Title of host publicationProceedings of European Wireless 2014; 20th European Wireless Conference
PublisherVDE VERLAG GMBH
Pages784-789
Number of pages6
ISBN (Print)9783800736218
Publication statusPublished - 2014
Event20th European Wireless Conference 2014 - Barcelona, Spain
Duration: 14 May 201416 May 2014

Conference

Conference20th European Wireless Conference 2014
Abbreviated titleEW 2014
CountrySpain
CityBarcelona
Period14/05/1416/05/14

Keywords

  • Large-scale MIMO
  • Mutual coupling
  • Precoding
  • Transmit correlation

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Communication

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  • Cite this

    Masouros, C., Chen, J., Tong, K., Sellathurai, M., & Ratnarajah, T. (2014). Exploiting transmit correlation and mutual coupling in MIMO transmitters. In Proceedings of European Wireless 2014; 20th European Wireless Conference (pp. 784-789). VDE VERLAG GMBH.