Analysis of pilot-aided channel estimation with optimal leakage suppression for OFDM systems

Authors:
Jeongwook Seo;Seunghun Jang;Janghoon Yang;Wongi Jeon;Dong Ku Kim
Affiliations:
Korea Electronics Technology Institute, Seoul, Korea;Yonsei University, Seoul, Korea;Korean German Institute of Technology, Seoul, Korea;Korea Electronics Technology Institute, Seoul, Korea;Yonsei University, Seoul, Korea
Venue:
IEEE Communications Letters
Year:
2010

Citing 3
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Abstract

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.