Optimal linear multiuser receiver in DS-CDMA system

Author

Wang, Wenjie ; Xu, Zhen ; Wu, Xiaojun ; Yin, Qinye

Author_Institution

Inst. of Inf. Eng., Xi´´an Jiaotong Univ., China

Volume

1

fYear

2001

fDate

2001

Firstpage

527

Abstract

A versatile signal model for a linear multiuser receiver in CDMA system is proposed. Based on the model, the optimal linear multiuser receiver problem is equivalent to the optimal weight vector design problem. Then the optimal solution according the linear constrained minimum variance (LCMV) criterion is deduced. The theoretical analysis and computer simulation demonstrate that the optimal receiver in this paper is the organic combination of a conventional RAKE receiver and multiuser detector, but its performance is superior to any linear multiuser receivers based on the RAKE receiver followed a linear multiuser detector

Keywords

code division multiple access; mobile radio; optimisation; radio receivers; spread spectrum communication; DS-CDMA system; LCMV criterion; RAKE receiver; linear constrained minimum variance criterion; multiuser detector; optimal linear multiuser receiver; optimal receiver performance; optimal solution; optimal weight vector design problem; signal model; Design engineering; Detectors; Fading; Matched filters; Multiaccess communication; Multipath channels; Multiple access interference; Pulse shaping methods; RAKE receivers; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd

Conference_Location

Rhodes

ISSN

1090-3038

Print_ISBN

0-7803-6728-6

Type

conf

DOI

10.1109/VETECS.2001.944898

Filename

944898