An Enhanced SMLR algorithm for multipath channel estimation in downlink WCDMA

Author

Fathi, Lahouari ; Jourdain, G. ; Arndt, Matthias

Volume

1

fYear

2005

fDate

11-14 Sept. 2005

Firstpage

316

Lastpage

320

Abstract

In this paper, a new algorithm for multipath channel estimation by means of the common pilot channel (CPICH) in downlink WCDMA-FDD is presented. The estimation is performed by using a single most likely replacement (SMLR) algorithm specifically derived for complex baseband signals where a Bernoulli-Gaussian (BG) model is introduced for the multipath channel. In the proposed algorithm, an interference cancelling technique is associated to the SMLR to enhance its performance. The proposed algorithm performs very well; it yields a satisfactory performance at a moderate extra computational cost compared to the SMLR

Keywords

channel estimation; code division multiple access; interference suppression; multipath channels; radio links; radiofrequency interference; Bernoulli-Gaussian model; common pilot channel; downlink WCDMA; interference cancelling technique; multipath channel estimation; single most likely replacement; Baseband; Channel estimation; Colored noise; Computational efficiency; Deconvolution; Downlink; Interference cancellation; Iterative algorithms; Multiaccess communication; Multipath channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on

Conference_Location

Berlin

Print_ISBN

9.7838007291e+012

Type

conf

DOI

10.1109/PIMRC.2005.1651450

Filename

1651450