Maximin algorithm with a step-length estimation technique

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We propose a technique that enhances the performance of Torrieri and Bakhru's maximin algorithm in the presence of frequency offsets and modulated interferences, a common scenario in multiple-access environments, where we observed that the Maximin algorithm suffers performance degradation in the aforesaid scenario. To combat modulated interferences and fading effects, we propose to update the step length during every smart antenna weight vector update. We found that our scheme improves the robustness of the maximin algorithm to a greater extent. Simulation results for a frequency-hopping system confirm the validity of the approach and demonstrate improvements in the performance of the maximin algorithm in the presence of frequency offsets and data modulated interferences in a fading channel environment.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2006-09
Language
English
Article Type
Article
Citation

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v.54, pp.2543 - 2552

ISSN
0018-926X
URI
http://hdl.handle.net/10203/12273
Appears in Collection
EE-Journal Papers(저널논문)
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