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Asymptotic Performance Bounds of Joint Channel Estimation and Multiuser Detection in Frequency-Selective Fading DS-CDMA Channels
University of Electro-Communications, Department of Communication Engineering and Informatics.
Dept. Elec. and Telecommun., Norwegian University of Science and Technology.
Department of Systems Science, Kyoto University.
Norwegian University of Science and Technology, Department of Electronics and Telecommunications.
2008 (English)In: 2008 INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY AND ITS APPLICATIONS, VOLS 1-3, 2008, 358-363 p.Conference paper (Refereed)
Abstract [en]

We derive asymptotic upper bounds of the performance of a one-shot MMSE multiuser detector (MUD) and an optimal MUD in frequency-selective fading DS-CDMA channels with imperfect CSI at the receiver, using the replica method. We find that the performance bound of the one-shot MMSE MUD is indistinguishable from the performance of the one-shot LMMSE MUD analyzed by Evans and Tse when signal-to-noise ratio is high and the system load is small, and that the performance gap between the optimal MUD and the one-shot LMMSE MUD is also small on the same conditions.

Place, publisher, year, edition, pages
2008. 358-363 p.
National Category
Telecommunications Signal Processing
URN: urn:nbn:se:kth:diva-46561DOI: 10.1109/ISITA.2008.4895438ISI: 000273504800066ISBN: 978-1-4244-2069-8OAI: diva2:492081
International Symposium on Information Theory and Its Applications. Auckland, NEW ZEALAND. DEC 07-10, 2008
QC 20120207Available from: 2012-02-07 Created: 2011-11-03 Last updated: 2012-02-07Bibliographically approved

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Vehkaperä, Mikko
TelecommunicationsSignal Processing

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ReferencesLink to record
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