A concurrent blind multiuser equalization scheme for DS-CDMA systems

Author

Mitra, Abhijit

Author_Institution

Dept. of Electron. & Commun. Eng., Indian Inst. of Technol. (IIT) Guwahati, Guwahati, India

fYear

2009

fDate

3-5 Nov. 2009

Firstpage

1

Lastpage

5

Abstract

A concurrent modified constant modulus (CM) algorithm and decision directed (DD) scheme for blind multiuser equalization is developed, suitable for downlink direct sequence code division multiple access (DS-CDMA) systems. Adaptation is performed by concurrently minimizing two cost functions based on either a CM criterion or a DD scheme for all active users. Computer simulations are used to assess the performance of the algorithm which is found to be better than that of the concurrent CM algorithm and DD scheme.

Keywords

blind equalisers; code division multiple access; telecommunication links; DS-CDMA system; concurrent blind multiuser equalization; concurrent modified constant modulus algorithm; decision directed scheme; downlink direct sequence code division multiple access system; Bandwidth; Blind equalizers; Detectors; Dispersion; Downlink; Intersymbol interference; Maximum likelihood detection; Maximum likelihood estimation; Multiaccess communication; Multiple access interference;

fLanguage

English

Publisher

ieee

Conference_Titel

Internet, 2009. AH-ICI 2009. First Asian Himalayas International Conference on

Conference_Location

Kathmandu

Print_ISBN

978-1-4244-4569-1

Electronic_ISBN

978-1-4244-4570-7

Type

conf

DOI

10.1109/AHICI.2009.5340343

Filename

5340343