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- W2373288600 abstract "Channel parameters in orthogonal frequency division multiplexing (OFDM) systems over fading channels are generally obtained by transmitting pilot symbols in given positions of the time-frequency grid. The pilot-based method usually involves the LS estimation step on the pilot subcarriers and the interpolation step over the entire time-frequency grid. Increasing the accuracy of the pilot estimation will accordingly increase the precision in the interpolation step. This paper proposed an improved subspace-tracking algorithm by the Givens rotation based delay-subspace tracking and the RLS filtering based amplitudes tracking. Performed on the parameterized model of the channel, the simulations prove that the channel (estimation) is more robust and accurate while the complexity of the algorithm is low." @default.
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- W2373288600 date "2005-01-01" @default.
- W2373288600 modified "2023-09-23" @default.
- W2373288600 title "A Channel Estimation Method for Orthogonal Frequency Division Multiplexing Systems by Tracking Delay-Subspace" @default.
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