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Time-Frequency Channel Equalization for OFDM Communication Systems

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3 Author(s)
Onen, E. ; Istanbul Univ., Istanbul, Turkey ; Akan, A. ; Chaparro, L.F.

In this paper, we present a computationally efficient, time-frequency (TF) based channel estimation method for OFDM channels whose frequency response may be changing over a single transmit symbol. The discrete evolutionary transform is used to obtain a complete model of a multi-path, fading and frequency selective channel. A TF receiver is designed to detect the sent data by using estimated channel parameters. Performance of the proposed method is tested on different levels of channel noise, and Doppler frequency shifts.

Published in:

Signal Processing and Communications Applications, 2007. SIU 2007. IEEE 15th

Date of Conference:

11-13 June 2007