An adaptive smart antenna based on space-time weighting scheme

Author

Shen, Jian-feng ; Wang, Zong-xin

Author_Institution

Dept. of Commun. Sci. & Eng., Fudan Univ., Shanghai, China

fYear

2003

fDate

1-3 Oct. 2003

Firstpage

407

Lastpage

410

Abstract

An adaptive smart antenna of space-time weighting scheme based on channel estimation is proposed. The CDMA signal model and multiuser´s multipath channel model are given. The channels of resolvable paths are estimated by maximum likelihood (ML) method. Then a space-time (ST) weighted uplink receiver and a maximum-norm (MN) weighted downlink transmitter are proposed. The simulation of system using the proposed ST receiver and MN transmitter is presented. The better performances than those of the MVDR receiver and MVDR transmitter are shown.

Keywords

adaptive antenna arrays; channel estimation; code division multiple access; maximum likelihood estimation; multipath channels; multiuser channels; space-time adaptive processing; CDMA signal model; MVDR receiver; MVDR transmitter; adaptive smart antenna; channel estimation; code division multiple access; maximum likelihood method; maximum-norm weighted downlink transmitter; minimum variance distortionless response; multiuser multipath channel model; resolvable path; space time weighted uplink receiver; Adaptive arrays; Antenna arrays; Channel estimation; Downlink; Maximum likelihood estimation; Multiaccess communication; Multipath channels; Signal resolution; Transmitters; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Electromagnetics and Communications, 2003. ICECom 2003. 17th International Conference on

Print_ISBN

953-6037-39-4

Type

conf

DOI

10.1109/ICECOM.2003.1291038

Filename

1291038