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- W2095247672 abstract "In this paper, based on the property of channel frequency response and the concept of interpolation in transform domain, we propose two discrete cosine transform (DCT)-based pilot-symbol-aided channel estimators, which can mitigate the aliasing error and high-frequency distortion of the direct discrete Fourier transform (DFT)-based channel estimators when the multipath fading channels have non-sample-spaced path delays. Both proposed estimators outperform the conventional DFT-based channel estimators. Of these two DCT-based estimators, one has its performance close to MMSE estimator, while the other one has the advantage of easy implementation with a little performance degradation. Furthermore, in implementation, the DCT-based estimators have the advantages of utilizing mature fast DCT algorithms and architectures, which is favorable to matrix-based channel estimators." @default.
- W2095247672 created "2016-06-24" @default.
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- W2095247672 date "2004-01-01" @default.
- W2095247672 modified "2023-09-29" @default.
- W2095247672 title "DCT-based channel estimation for OFDM systems" @default.
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- W2095247672 doi "https://doi.org/10.1109/icc.2004.1312957" @default.
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