Paper data
Title:
A multi-slot method to estimate fast-varying channels in TD-CDMA systems Author(s): Spagnolini Umberto, Dip. Elettronica e Informazione, Politecnico di Milano Nicoli Monica, Dip. Elettronica e Informazione, Politecnico di Milano Simeone Osvaldo, Dip. Elettronica e Informazione, Politecnico di Milano Page numbers in the proceedings: Volume III pp 335-338 Session: Channel Estimation and Equalization
Paper abstract
In mobile communications, the multipath radio channel is characterized by fast-varying faded amplitudes and slowly-varying delays. These different varying rates can be exploited by estimating the temporal subspace of the channel through a multi-slot averaging. This paper proves that the temporal subspace basis can be calculated with any accuracy (provided that the averaging memory is large enough), so that the mean square error (MSE) on the channel response depends only on the number of fast-varying parameters. The method shows promising benefits in the channel estimation for time slotted system such as the third generation TD-CDMA standards TDD-UTRA or TD-SCDMA.
Paper
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