Variable step-size adaptive channel estimation for WCDMA receiver

Author

Han, Xi-Bin ; Zhu, Wei-Ping

Author_Institution

Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada

fYear

2004

fDate

20-22 Oct. 2004

Firstpage

85

Lastpage

88

Abstract

An efficient channel estimation algorithm using a variable step-size adaptive filter is proposed for wideband code division multiple access (WCDMA) communication systems. The new algorithm is able to achieve a fast convergence and a low steady state error compared with a conventional constant step-size adaptive filtering method. The proposed algorithm is analyzed and simulated for multipath Rayleigh fading channels, showing the true channel response and the estimation results. The BER performance of the system is also simulated and compared with the Bhattacharyya bound.

Keywords

3G mobile communication; Rayleigh channels; adaptive filters; channel estimation; code division multiple access; error statistics; fading channels; mobile radio; multipath channels; radio receivers; time-varying channels; BER; Bhattacharyya bound; UMTS; W-CDMA receiver; WCDMA receiver; adaptive channel estimation; mobile wireless communication; multipath Rayleigh fading channels; multipath channels; steady state error; time-varying channels; variable step-size adaptive filter; wideband code division multiple access; Adaptive filters; Algorithm design and analysis; Analytical models; Channel estimation; Convergence; Fading; Filtering algorithms; Multiaccess communication; Steady-state; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Multimedia, Video and Speech Processing, 2004. Proceedings of 2004 International Symposium on

Print_ISBN

0-7803-8687-6

Type

conf

DOI

10.1109/ISIMP.2004.1434006

Filename

1434006