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Journal of Radio Electronics Online scientific journal · eISSN 1684-1719
2008, № 1 · ELECTRODYNAMICS

Modified Blind Beamforming Algorithm for Smart Antenna System

A. Bouacha1, F. Debbat1, F.T. Bendimerad1

1 Telecommunications laboratory, Faculty of Engineering, Abou-Bekr Belkaïd University TLEMCEN, BP 230, Chetouane, 13000 Tlemcen, Algeria, DZA
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Abstract

Intelligent antennas take advantage of both antenna and propagation technologies. They have the potential to reduce multipath interference, increase signal to noise ratio, and introduce frequency reuse within a confined environment. Several challenges remain however in the growth of intelligent antennas; one of these is the development of new beamforming algorithm for the best use of the received signal. This study focuses on the development and the application of a new simple matrix inversion normalized constant modulus algorithm (SMI-NCMA) for smart antennas. The SMI-NCMA which combines the individual good aspects of Sample Matrix Inversion (SMI) and the Normalized Constant Modulus algorithms (NCMA) is described. Simulation results show that less complexity SMI-NCMA improves the interference suppression and gain enhancement over classical NCMA, converges from the initial iteration and achieves BER (bite error rate) improvements for co-channel interference.

For citation

Bouacha A., Debbat F., Bendimerad F.T. Modified Blind Beamforming Algorithm for Smart Antenna System // Journal of Radio Electronics. – 2008. – No. 1.

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