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

fYear

2006

Firstpage

1

Lastpage

5

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/VTCF.2006.367

Filename

4109632