MMSE-based adaptive multiuser detection of DS-CDMA signals

Author

Ghotbi, Mohsen ; Soleymani, M. Reza

Author_Institution

Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que.

fYear

2005

fDate

1-4 May 2005

Firstpage

81

Lastpage

84

Abstract

Among multiple access techniques, code division multiple access (CDMA) has the exclusive advantage of allowing all active users to share the same channel concurrently. When the CDMA technique is used, multiuser detection is needed to reject or reduce the multiple access interference (MAI) affecting each active user. Adaptive techniques for detection of direct-sequence code division multiple access (DS-CDMA) signals are investigated to improve the performance of the CDMA system by reducing interference among users. In this paper, we employ two major types of adaptive technique called least mean squares (LMS) and recursive least squares (RLS), and compare their complexities

Keywords

code division multiple access; interference suppression; least mean squares methods; multiuser detection; recursive estimation; spread spectrum communication; DS-CDMA signals; MMSE-based adaptive multiuser detection; direct-sequence code division multiple access; least mean squares; multiple access interference reduction; multiple access techniques; recursive least squares; Character generation; Chromium; Detectors; Matched filters; Multiaccess communication; Multiuser detection; Signal detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2005. Canadian Conference on

Conference_Location

Saskatoon, Sask.

ISSN

0840-7789

Print_ISBN

0-7803-8885-2

Type

conf

DOI

10.1109/CCECE.2005.1556882

Filename

1556882