DocumentCode :
3572130
Title :
Performance analysis of a reduced rank MMSE MUD for DS-CDMA
Author :
Sud, Seema ; Myrick, Wilbur L. ; Goldstein, J.Scott ; Zoltowski, Michael D.
Author_Institution :
Sci. Applications Int. Corp., Arlington, VA, USA
Volume :
5
fYear :
2001
fDate :
6/23/1905 12:00:00 AM
Firstpage :
3158
Abstract :
A new reduced rank multiuser detector (MUD) for DS-CDMA is presented. The algorithm is derived for the general case of an asynchronous DS-CDMA system in frequency selective multipath. The MUD solution is shown to be equivalent to a bank of parallel, single user detectors. The algorithm is implemented in reduced rank form using the correlations subtractive algorithm of the multistage Wiener filter (CSA-MWF). It is shown that the CSA-MWF implementation performs identically to the full rank solutions of MMSE MUD and meets single user, full rank performance at a substantially reduced rank for all levels of system load
Keywords :
Wiener filters; code division multiple access; least mean squares methods; mobile radio; multiuser channels; spread spectrum communication; time-varying channels; CSA-MWF; MMSE; MUD; asynchronous DS-CDMA system; correlations subtractive algorithm; frequency selective multipath channel; multistage Wiener filter; performance analysis; reduced rank multiuser detector; Application software; Bandwidth; Detectors; Frequency; Intersymbol interference; Multiaccess communication; Multiuser detection; Performance analysis; Signal detection; Wiener filter;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Print_ISBN :
0-7803-7206-9
Type :
conf
DOI :
10.1109/GLOCOM.2001.966009
Filename :
966009
Link To Document :
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