Title :
Fast converging blind adaptive multiuser detector for DS-CDMA system
Author :
Mao, Zhiwei ; Bhargava, Vijay K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
fDate :
6/23/1905 12:00:00 AM
Abstract :
A fast converging blind adaptive multiuser detector is proposed in this paper. In the proposed method, the convergence of the blind adaptive detectors for weak power users is accelerated by successively canceling the interference of the strong power signals from the received signal. The order and channel parameters for the interference cancellation are determined from the steady state of the detectors. Numerical results presented show that satisfactory performance can be achieved in various environments
Keywords :
adaptive signal detection; code division multiple access; convergence of numerical methods; interference suppression; mobile radio; multiuser channels; spread spectrum communication; DS-CDMA systems; blind adaptive multiuser detector; detector steady state; direct-sequence code-division multiple access; fast convergence; performance; strong power signals; successive interference cancellation; weak power users; AWGN; Acceleration; Adaptive filters; Adaptive signal detection; Computational complexity; Convergence; Demodulation; Detectors; Multiaccess communication; Multiple access interference;
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Print_ISBN :
0-7803-7206-9
DOI :
10.1109/GLOCOM.2001.965523
