Title :
Wiener LMS Based Multipath Channel Estimation in WCDMA and cdma2000
Author :
Ouameur, Messaoud Ahmed ; Massicotte, Daniel
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. du Quebec a Trois-Rivieres, Trois-Rivieres, QC
Abstract :
This work is devoted to the problem of asynchronous multiuser delay acquisition and time varying channel tracking in DS-CDMA systems. A multiuser-LMS-like structure along with smoothing/prediction filters to improve tracking quality is suggested. A performance versus complexity analysis is conducted, in cdma2000 and WCDMA environments, over highly interesting settings including different data rates, channel types and mobile speeds. It has been concluded that the proposed multiuser LMS structure offers improvements compared with the correlator method.
Keywords :
3G mobile communication; code division multiple access; least mean squares methods; spread spectrum communication; time-varying channels; DS-CDMA systems; WCDMA; asynchronous multiuser delay acquisition; cdma2000; multiuser-LMS-like structure; time varying channel tracking; Channel estimation; Correlators; Distributed computing; Finite impulse response filter; IIR filters; Least squares approximation; Low pass filters; Multiaccess communication; Multipath channels; Wiener filter;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0062-7
Electronic_ISBN :
1-4244-0063-5
DOI :
10.1109/VTCF.2006.367
