Data transceiver with filtering and precoding

摘要

A method for conveying digital data from a transmitter ( 20 ) to a receiver ( 40 ) includes specifying a spectral filtering profile to be applied in conveying the data. A sequence of input symbols is generated ( 22 ) at the transmitter, corresponding to the data to be conveyed. The input symbols are precoded at the transmitter using Tomlinson-Harashima precoding ( 25 ) responsive to the specified profile, so as to generate a corresponding sequence of precoded symbols. The precoded symbols are filtered ( 26 ) in accordance with the specified profile. The precoded and filtered symbols are decoded at the receiver so as to recover the data therefrom.