On the performance of space-time coded multiuser MIMO systems with iterative receivers

Pei Xiao, Jinsong Wu, Mathini Sellathurai, T. Ratnarajah

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

Abstract

This paper considers multiuser MIMO CDMA systems with high rate space-time linear dispersion codes (LDC) and orthogonal space-time block codes (O-STBC) in time-varying Rayleigh fading MIMO channels. We propose a multi-function process integrating multi-user detection, space-time decoding and symbol demodulation, which can be coupled with soft channel decoding to improve the system performance in an iterative fashion. We show that the space-time coded CDMA systems approach the single-user bound with only two iterations, and full diversity LDCs enable the systems to utilize the time diversity inherent in fast fading channels. The space-time coded CDMA systems are also compared to the MIMO CDMA system based on spatial multiplexing, some recommendations are made on how to design a practical MIMO CDMA system based on the comparative studies.

Original languageEnglish
Title of host publicationVTC Spring 2009 - IEEE 69th Vehicular Technology Conference
PublisherIEEE
ISBN (Electronic)9781424425174
DOIs
Publication statusPublished - 12 Jun 2009
EventIEEE 69th Vehicular Technology Conference 2009 - Barcelona, Spain
Duration: 26 Apr 200929 Apr 2009

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Conference

ConferenceIEEE 69th Vehicular Technology Conference 2009
CountrySpain
CityBarcelona
Period26/04/0929/04/09

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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    Xiao, P., Wu, J., Sellathurai, M., & Ratnarajah, T. (2009). On the performance of space-time coded multiuser MIMO systems with iterative receivers. In VTC Spring 2009 - IEEE 69th Vehicular Technology Conference [5073736] (IEEE Vehicular Technology Conference). IEEE. https://doi.org/10.1109/VETECS.2009.5073736