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A novel channel estimation method for OFDM systems in multipath fading

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5 Author(s)
Bing Han ; Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China ; Xiqi Gao ; Xiaohu You ; Costa, E.
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The sparsity of multipath fading channel is introduced, and then the improved MMSE channel estimation for orthogonal frequency-division multiplexing (OFDM) system is presented. With computationally simple algorithm, the proposed channel estimator extracts the channel information from its noisy version accurately by utilizing the correlation of the taps of finite impulse response (FIR) filter channel model. Simulation results show that the proposed channel estimation gives much better performance than LS and DFT-based MMSE channel estimator.

Published in:

Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE  (Volume:1 )

Date of Conference:

17-21 Nov. 2002