Fast adaptive channel estimation algorithms for CDMA systems

Author

El-Sallam, Amar A Abd ; Zoubir, Abdelhak M.

Author_Institution

Commun. & Signal Process. Group (CSP), Curtin Univ. of Technol., Perth, WA, Australia

Volume

3

fYear

2005

fDate

18-23 March 2005

Abstract

The paper presents adaptive blind channel estimation and tracking algorithms for CDMA systems. Using only the spreading code of the user of interest, three blind estimation algorithms are proposed to estimate the channel response from the received data sequence. The idea is based on minimum variance (MV) receivers. Simulation results show that the proposed algorithms perform better than previously proposed algorithms, also they are less complex and have a fast convergence rate.

Keywords

adaptive estimation; channel estimation; code division multiple access; computational complexity; optimisation; radio receivers; CDMA; adaptive estimation; blind estimation; channel response; channel tracking algorithms; constrained optimization techniques; fast adaptive channel estimation; low complexity receivers; minimum variance receivers; received data sequence; spreading code; Adaptive signal processing; Australia; Blind equalizers; Channel estimation; Correlators; Fading; Multiaccess communication; Multipath channels; Paper technology; Signal processing algorithms;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-8874-7

Type

conf

DOI

10.1109/ICASSP.2005.1415864

Filename

1415864