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A semiblind iterative joint optimum beamformer for IEEE 802.11g WLAN

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3 Author(s)
Sellone, F. ; Dipt. di Elettronica, Politecnico di Torino, Italy ; Cavallotti, P. ; D'Angelo, E.

The innovative IEEE 802.11g based upon OFDM appears like a promising standard in the future. Interference, fading and coexistence issues, that can threaten it performance, are efficiently counteracted by smart antennas. This paper proposes a novel joint beamforming algorithm for a pair of communicating stations which does not need any extra bandwidth or resources than those provided by the standard. The suggested iterative approach is based on a specific optimization problem at each side of the link. The steady state solution yields to the minimization of the transmitted power for a desired SINK, that is an imperative optimization criterion when dealing with systems for which power consumption is crucial, such as laptops, hand-pc or mobile phones. Simulations show that the presented algorithm achieves rapid convergence towards the theoretical optimum solution.

Published in:

Emerging Technologies: Frontiers of Mobile and Wireless Communication, 2004. Proceedings of the IEEE 6th Circuits and Systems Symposium on  (Volume:2 )

Date of Conference:

31 May-2 June 2004

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