Modified MAXIMIN adaptive array algorithm for frequency-hopping system

Author

Balakrishnan, Raja D. ; Nugroho, Bagawan S. ; Kwon, Hyuck M.

Author_Institution

Dept. of Electr. & Comput. Eng., Wichita State Univ., KS, USA

Volume

1

fYear

2002

fDate

2002

Firstpage

103

Abstract

The MAXIMIN algorithm (Torrieri (1999)) is a blind adaptive-array algorithm that provides simultaneous interference suppression and beamforming in a frequency-hopping communication system. This algorithm is so named because one set of correlators serves to maximize the desired signal while the other serves to minimize the interference plus noise. Though the MAXIMIN algorithm is robust and provides improvement in signal-to-interference-plus-noise ratio (SINR), the convergence is reached only after a considerable time. In this paper we propose a modification to the MAXIMIN algorithm, which can provide improvements in the rate of convergence. Computer simulation results under various combinations of arrival of interferences reveal the robustness of the proposed modification.

Keywords

adaptive antenna arrays; array signal processing; convergence of numerical methods; correlators; frequency hop communication; interference suppression; minimax techniques; spread spectrum communication; SINR; beamforming; blind adaptive-array algorithm; convergence; correlators; frequency-hopping communication system; interference suppression; modified MAXIMIN algorithm; signal-to-interference-plus-noise ratio; Adaptive arrays; Computer simulation; Convergence; Correlators; Demodulation; Equations; Frequency; Interference suppression; Robustness; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 2002 IEEE Seventh International Symposium on

Print_ISBN

0-7803-7627-7

Type

conf

DOI

10.1109/ISSSTA.2002.1049295

Filename

1049295