Asymptotic Performance Bounds of Joint Channel Estimation and Multiuser Detection in Frequency-Selective Fading DS-CDMA Channels
2008 (English)In: 2008 INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY AND ITS APPLICATIONS, VOLS 1-3, 2008, 358-363 p.Conference paper (Refereed)
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.
Telecommunications Signal Processing
IdentifiersURN: urn:nbn:se:kth:diva-46561DOI: 10.1109/ISITA.2008.4895438ISI: 000273504800066ISBN: 978-1-4244-2069-8OAI: oai:DiVA.org:kth-46561DiVA: diva2:492081
International Symposium on Information Theory and Its Applications. Auckland, NEW ZEALAND. DEC 07-10, 2008
QC 201202072012-02-072011-11-032012-02-07Bibliographically approved