A CSF-inspired estimator recovers the full OFDM channel from scattered pilots by exploiting delay-Doppler stationarity, matching MMSE accuracy in simulations.
Delay-Doppler channel estimation by leveraging the ambiguity function in OFDM systems,
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Channel Spreading Function-Inspired Channel Transfer Function Estimation for OFDM Systems with High-Mobility
A CSF-inspired estimator recovers the full OFDM channel from scattered pilots by exploiting delay-Doppler stationarity, matching MMSE accuracy in simulations.