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- W2095756970 abstract "Pilot-aided channel estimation for multi-carrier systems can be significantly improved by exploiting time and frequency correlations between the channel frequency response coefficients. But in practice, the knowledge of channel correlation function is not accurately available, thereby necessitating the need of an estimator that employs a fixed correlation function and is robust to mismatches with the actual one. While the maximally robust channel estimator for multi-carrier systems for the case of an infinite number of observations is well known for almost a decade, the one for the case of a finite number of observations has been only recently proposed. We extend the proposed maximally robust estimator to the practical case of small finite dimensional pilot grids by taking into account the grid edge effects. This paves the way for application of the estimator to practical systems such as 3G LTE. Simulation results for an LTE uplink system under different transmission scenarios demonstrate the superiority of the proposed maximally robust estimator over the heuristic one by as much as 1.35 dB in terms of the coded BER." @default.
- W2095756970 created "2016-06-24" @default.
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- W2095756970 date "2009-04-01" @default.
- W2095756970 modified "2023-09-27" @default.
- W2095756970 title "Robust 2-D channel estimation for multi-carrier systems with finite dimensional pilot grid" @default.
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- W2095756970 doi "https://doi.org/10.1109/icassp.2009.4960176" @default.
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