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Kalman-Based Blind Multiuser Detection with Multiple Receiver Antennas for the Uplink of Asynchronous DS-CDMA Systems

Wathan, F P, Hoshyar, R and Tafazolli, R (2005) Kalman-Based Blind Multiuser Detection with Multiple Receiver Antennas for the Uplink of Asynchronous DS-CDMA Systems 61st IEEE Vehicle Technology Conference, VTC 2005-Spring. , 2. pp. 997-1001. ISSN 1550-2252

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Abstract

A batch Kalman-based blind adaptive multiuser detection (K-BA-MUD) with multiple receiver (Rx) antennas is investigatedfor asynchronous CDMA systems in the Uplink direction. In this paper, we consider two receiver structures:the Independent and the Cooperative structure. Previousresults had stated that the Cooperative structure always outperforms the Independent one. However, with a limited number of samples available for signal detection, we need to justify how cooperative the processing should be to maintain that statement. Toward this end we propose the Partially Cooperative structure that relaxes the Identifiability Condition (IC) of a single Rx antenna K-BA-MUD. It is concluded that the proposed structure will outperform the Fully Cooperative one in any condition, given the number of samples is small and the IC is not violated. Finally, by reducing the size of the steering vector, we also reduce its computational complexity for updating the detector parameters.

Item Type: Article
Additional Information: ©2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Depositing User: Melanie Hughes
Date Deposited: 06 Oct 2010 09:23
Last Modified: 23 Sep 2013 18:38
URI: http://epubs.surrey.ac.uk/id/eprint/2407

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