Design of Uplink WCDMA Channel Equalizer using Block LMS Algorithm

Author

Charoenlarpnopparut, C. ; Wangrattanapranee, D. ; Jiebna, S.

Author_Institution

Sch. of Commun., Instrum. & Control, Thammasat Univ.

fYear

2006

fDate

Oct. 18 2006-Sept. 20 2006

Firstpage

254

Lastpage

257

Abstract

In WCDMA system, the BER performance of the Rake receiver greatly depends on the design of channel estimator unit. The application of LMS and other adaptive filtering algorithms to WCDMA uplink receiver was proposed in 2002. In this paper, the design channel estimator and equalizer based on the usage of modified block LMS is the center of focus. By simulation, the performance of block LMS algorithm is shown to be superior to that of WMSA algorithm previously proposed, especially when the channel condition changes rapidly

Keywords

adaptive filters; code division multiple access; equalisers; error statistics; filtering theory; radio links; radio receivers; wireless channels; BER; Rake receiver; adaptive filtering algorithms; block LMS algorithm; uplink WCDMA channel equalizer; Adaptive filters; Algorithm design and analysis; Bit error rate; Equalizers; Fading; Filtering algorithms; Least squares approximation; Multiaccess communication; Multipath channels; RAKE receivers; Block LMS; Rake receiver; WMSA; Wideband CDMA; adaptive filter; channel equalization;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Information Technologies, 2006. ISCIT '06. International Symposium on

Conference_Location

Bangkok

Print_ISBN

0-7803-9741-X

Electronic_ISBN

0-7803-9741-X

Type

conf

DOI

10.1109/ISCIT.2006.340042

Filename

4141553