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Estimation-based synthesis of H_∞-optimal adaptive equalizers over wireless channels

Maleki-Tehrani, Ardavan and Sayyarrodsari, Bijan and Hassibi, Babak and How, Jonathan P. and Cioffi, John M. (1999) Estimation-based synthesis of H_∞-optimal adaptive equalizers over wireless channels. In: Global Telecommunications Conference, 1999. GLOBECOM '99. Vol.1a. IEEE , Piscataway, NJ, pp. 457-461. ISBN 0-7803-5796-5.

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This paper presents a systematic synthesis procedure for H_∞-optimal adaptive FIR equalizers over a time-varying wireless channel. The channel is assumed to be frequency selective with Rayleigh fading. The proposed equalizer structure consists of the series connection of an adaptive FIR filter and a fixed equalizer (designed for the nominal channel). Adaptation of the weight vector of the adaptive FIR filter is achieved using the H_∞-optimal solution of an estimation-based interpretation of the channel equalization problem. Due to its H_∞-optimality, the proposed solution is robust to exogenous disturbances, and enables fast adaptation (i.e., a short training period) without compromising the steady-state performance of the equalization. Preliminary simulation are presented to support the above claims.

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Additional Information:© 1999 IEEE.
Record Number:CaltechAUTHORS:20150227-075402686
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:55311
Deposited By: Shirley Slattery
Deposited On:27 Feb 2015 17:42
Last Modified:10 Nov 2021 20:44

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