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Reduced-rank adaptive time-domain channel estimation for OFDM systems

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2 Author(s)
Xuan Huan Nguyen ; Sch. of Electr. Eng. & Telecommun., New South Wales Univ., Sydney, NSW ; Jinho Choi

In this paper, we consider a reduced-rank adaptive channel estimation for orthogonal frequency division multiplexing (OFDM) systems. The pilot-aided channel estimation is rawly carried out in the time domain, which is shown to have the better performance compared to the frequency-domain estimator. The adaptive modified least mean square (LMS) algorithm is then applied to further improve the estimates of the channel coefficients. In order to attain lower complexity as well as fast convergence, a reduced-rank technique is also applied to the adaptive algorithm

Published in:

Communications Systems, 2004. ICCS 2004. The Ninth International Conference on

Date of Conference:

7-7 Sept. 2004