Title :
A concurrent blind multiuser equalization scheme for DS-CDMA systems
Author_Institution :
Dept. of Electron. & Commun. Eng., Indian Inst. of Technol. (IIT) Guwahati, Guwahati, India
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;
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
DOI :
10.1109/AHICI.2009.5340343
