A combined blind beamforming and interference cancellation for a smart antenna system in MC-CDMA base station

Author

Maichalernnukul, Kiattisak ; Jitapunkul, Somchai

Author_Institution

Electr. Eng. Dept., Chulalongkorn Univ., Bangkok, Thailand

Volume

1

fYear

2004

fDate

26-29 Sept. 2004

Firstpage

155

Abstract

In this paper, we propose a simple antenna array-based MC-CDMA receiver that combines efficient blind adaptive beamforming based on maximum signal-to-interference-and-noise ratio (MSINR) criterion with parallel interference cancellation (PIC) for an MC-CDMA uplink system. The beamformer is used to enhance the desired signal and reduce the co-channel interference from other directions. For in-beam multiple access interference (MAI) cancellation, a PIC detector is used. Simulation results show that the proposed receiver can efficiently reject in-beam MAI even when one of the arrival angles is the same as that of the desired user.

Keywords

adaptive antenna arrays; array signal processing; cochannel interference; code division multiple access; direction-of-arrival estimation; interference suppression; mobile radio; receiving antennas; MAI cancellation; MC-CDMA base station; MC-CDMA uplink system; MSINR; PIC detector; antenna array; arrival angles; blind adaptive beamforming; co-channel interference; in-beam multiple access interference; maximum signal-to-interference-and-noise ratio; parallel interference cancellation; receiver; smart antenna system; Adaptive arrays; Antenna arrays; Array signal processing; Base stations; Detectors; Interchannel interference; Interference cancellation; Multicarrier code division multiple access; Multiple access interference; Receiving antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th

ISSN

1090-3038

Print_ISBN

0-7803-8521-7

Type

conf

DOI

10.1109/VETECF.2004.1399952

Filename

1399952