Asymptotic performance bounds of joint channel estimation and multiuser detection in frequency-selective fading DS-CDMA channels

Keigo Takeuchi, Mikko Vehkaperä, Toshiyuki Tanaka, Ralf R. Müller

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Title of host publication2008 International Symposium on Information Theory and its Applications, ISITA2008
PublisherIEEE Institute of Electrical and Electronic Engineers
ISBN (Electronic)978-1-4244-2069-8
ISBN (Print)978-1-4244-2068-1
DOIs
Publication statusPublished - 1 Dec 2008
MoE publication typeA4 Article in a conference publication
Event2008 International Symposium on Information Theory and its Applications, ISITA2008 - Auckland, New Zealand
Duration: 7 Dec 200810 Dec 2008

Conference

Conference2008 International Symposium on Information Theory and its Applications, ISITA2008
CountryNew Zealand
CityAuckland
Period7/12/0810/12/08

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    Takeuchi, K., Vehkaperä, M., Tanaka, T., & Müller, R. R. (2008). Asymptotic performance bounds of joint channel estimation and multiuser detection in frequency-selective fading DS-CDMA channels. In 2008 International Symposium on Information Theory and its Applications, ISITA2008 [4895438] IEEE Institute of Electrical and Electronic Engineers. https://doi.org/10.1109/ISITA.2008.4895438