A space-time RAKE receiver for asynchronous DS/CDMA system based on smart antenna

Author

Xu, B. ; Vu, T.B. ; Mehrpour, H.

Author_Institution

Sch. of Electr. Eng., New South Wales Univ., Kensington, NSW, Australia

Volume

3

fYear

1999

fDate

36342

Firstpage

2179

Abstract

A space-time RAKE receiver employing a sliding-window LMS (SWLMS) algorithm is proposed. It is shown that this receiver is not only able to combat multipath fading, but is also near-far resistant. In addition, the proposed receiver is applicable to a CDMA system with either periodic or aperiodic signature codes. In comparison with the normalized LMS (NLMS) and Wiener solution, the performance of the proposed receiver is investigated by theoretical analysis and computer simulations

Keywords

adaptive antenna arrays; adaptive filters; adaptive signal processing; array signal processing; code division multiple access; direction-of-arrival estimation; fading channels; filtering theory; interference suppression; least mean squares methods; multipath channels; multiuser channels; radio receivers; radiofrequency interference; spread spectrum communication; DOA; Wiener solution; adaptive algorithms; aperiodic signature code; asynchronous DS/CDMA system; computer simulations; multipath fading; multiple access interference suppression; near-far resistant receiver; normalized LMS; periodic signature code; receiver performance; sliding-window LMS algorithm; smart antenna; space-time RAKE receiver; transversal filter; Computer simulation; Delay; Fading; Least squares approximation; Multiaccess communication; Multipath channels; Multiple access interference; RAKE receivers; Receiving antennas; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999 IEEE 49th

Conference_Location

Houston, TX

ISSN

1090-3038

Print_ISBN

0-7803-5565-2

Type

conf

DOI

10.1109/VETEC.1999.778443

Filename

778443