Blind adaptive multiuser detection for DS-CDMA utilizing a sinusoidally-distributed DSE-CMA

Jusak, J, Luehdorff, H and Hussain, Z 2005, 'Blind adaptive multiuser detection for DS-CDMA utilizing a sinusoidally-distributed DSE-CMA', in R. Harris (ed.) Proceedings of the Tencon 2005 IEEE Region 10 Conference, Melbourne, Australia, 21-24 November 2005, pp. 1-4.


Document type: Conference Paper
Collection: Conference Papers

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Title Blind adaptive multiuser detection for DS-CDMA utilizing a sinusoidally-distributed DSE-CMA
Author(s) Jusak, J
Luehdorff, H
Hussain, Z
Year 2005
Conference name TENCON IEEE Region 10 Conference
Conference location Melbourne, Australia
Conference dates 21-24 November 2005
Proceedings title Proceedings of the Tencon 2005 IEEE Region 10 Conference
Editor(s) R. Harris
Publisher IEEE
Place of publication Piscataway, USA
Start page 1
End page 4
Total pages 4
Abstract The use of adaptive filtering to mitigate the multiple access interference (MAI) in the direct-sequence code division multiple access (DS-CDMA) systems is studied in this paper. Blind adaptive algorithm based on our recently proposed sinusoidally-distributed dithered signed-error constant modulus algorithm (S-DSE-CMA) is introduced to adapt the filter coefficients. This algorithm retains the averaged transient behavior of the constant modulus algorithm (CMA). We evaluate the performance of an adaptive multi-user detector utilizing the S-DSE-CMA scheme against the existed uniformly-distributed DSE-CMA (U-DSE-CMA). It is shown that the new scheme converges faster than the conventional scheme. Simulation results of averaged mean-squared error (MSE) trajectories for synchronous and asynchronous DS-CDMA are presented.
Subjects Broadband and Modem Technology
Keyword(s) CDMA
CMA
equalization
DOI - identifier 10.1109/TENCON.2005.301230
Copyright notice © 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.
ISBN 0-7803-9311-2
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