Detection aided recursive least squares multiuser detection in the downlink of DS/CDMA mobile systems

Author

Thanh, Bui Ngoc ; Krishnamurthy, Vikram ; Evans, Rob

Author_Institution

Dept. of Electr. Eng., Melbourne Univ., Parkville, Vic., Australia

fYear

2001

fDate

2001

Firstpage

174

Lastpage

177

Abstract

This paper develops a sequential composite hypotheses test for detecting failure of a decision directed recursive least squares (RLS) multiuser detector (MUD) and convergence of a blind RLS MUD when used in the downlink of a DS-CDMA system. Simulations demonstrate the effectiveness of the test and characterize the SIR improvement achievable in a dynamic environment

Keywords

code division multiple access; least squares approximations; mobile radio; multiuser channels; recursive estimation; signal detection; spread spectrum communication; DS-CDMA; RLS multiuser detector; SIR improvement; decision directed multiuser detector; downlink; dynamic environment; failure detection; mobile systems; multiuser detection; recursive least squares; sequential composite hypotheses test; Convergence; Detectors; Distributed decision making; Downlink; Least squares methods; Multiaccess communication; Multiuser detection; Resonance light scattering; Sequential analysis; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, 2001. (SPAWC '01). 2001 IEEE Third Workshop on Signal Processing Advances in

Conference_Location

Taiwan

Print_ISBN

0-7803-6720-0

Type

conf

DOI

10.1109/SPAWC.2001.923875

Filename

923875