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Analysis of Pilot-Aided Channel Estimation with Optimal Leakage Suppression for OFDM Systems

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5 Author(s)
Jeongwook Seo ; Korea Electron. Technol. Inst., Seoul, South Korea ; Seunghun Jang ; Janghoon Yang ; Wongi Jeon
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This letter analyzes the effect of the leakage on the mean square error (MSE) performance of the pilot-aided channel estimator using discrete Fourier transform (DFT)-based interpolation in orthogonal frequency division multiplexing (OFDM) systems with virtual carriers. The optimal linear estimator for leakage suppression is derived to minimize the MSE. Numerical results show that the pilot-aided channel estimator with optimal leakage suppression improves the MSE performance significantly over the conventional one.

Published in:

Communications Letters, IEEE  (Volume:14 ,  Issue: 9 )

Date of Publication:

September 2010

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