An MMSE-based beamforming algorithm for smart antenna applied to an MC-CDMA system with co-channel interference

Author

Tuan, Le Minh ; Van Su, Pham ; Kim, Jewoo ; Yoon, Giwan

Author_Institution

School of Eng., Inf. & Commun. Univ., Taejon, South Korea

Volume

2

fYear

2002

fDate

25-28 Nov. 2002

Firstpage

1252

Abstract

This paper proposes an adaptive beamforming algorithm, called MC-MMSE, for adaptive antennas applied to an MC-CDMA system. A new method for updating the weight vector based on the MSE criterion is derived. Computer simulations show that the MC-MMSE algorithm is capable of rejecting co-channel interference that affects the MC-CDMA system. Thus, the BER performance of the MC-CDMA system is much higher than that of the MC-CDMA system without using adaptive antenna and that of the DS-CDMA system with adaptive antenna in multipath Rayleigh fading channel.

Keywords

Rayleigh channels; adaptive antenna arrays; array signal processing; cochannel interference; code division multiple access; error statistics; indoor radio; interference suppression; least mean squares methods; multipath channels; BER performance; MC-CDMA; MC-MMSE; adaptive beamforming algorithm; co-channel interference; interference rejection; multipath Rayleigh fading channel; smart antenna; weight vector updating; Adaptive arrays; Adaptive systems; Antenna arrays; Array signal processing; Fading; Interchannel interference; Multiaccess communication; Multicarrier code division multiple access; OFDM; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Systems, 2002. ICCS 2002. The 8th International Conference on

Print_ISBN

0-7803-7510-6

Type

conf

DOI

10.1109/ICCS.2002.1183334

Filename

1183334