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On The Performance of Space-Time Coded Multiuser MIMO Systems with Iterative Receivers

Xiao, P, Wu, J, Sellathurai, M and Ratnarajah, T (2009) On The Performance of Space-Time Coded Multiuser MIMO Systems with Iterative Receivers In: IEEE Vehicular Technology Conference, 2009-04-26 - 2009-04-29, Barcelona.

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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.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Authors :
Xiao, P
Wu, J
Sellathurai, M
Ratnarajah, T
Date : 12 June 2009
DOI : 10.1109/VETECS.2009.5073736
Contributors :
Additional Information : © 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Depositing User : Symplectic Elements
Date Deposited : 27 Sep 2013 11:28
Last Modified : 31 Oct 2017 15:12

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