Abstract: A method and system for adaptive prefiltering of a signal for transmission is described. The method includes determining a reference starting value of coefficients for a receiver equalizer filter, receiving an indication of a change in channel characteristics based on a signal received at the receiver equalizer filter, computing coefficients for an adaptive filter based on the reference starting value and the change in channel characteristics, setting the coefficients of the adaptive filter equal to the computed coefficients, and filtering a signal for transmission through the adaptive filter.

Abstract: A method and system for adaptive prefiltering of a signal for transmission is described. The method includes determining a reference starting value of coefficients for a receiver equalizer filter, receiving an indication of a change in channel characteristics based on a signal received at the receiver equalizer filter, computing coefficients for an adaptive filter based on the reference starting value and the change in channel characteristics, setting the coefficients of the adaptive filter equal to the computed coefficients, and filtering a signal for transmission through the adaptive filter.

Abstract: A parabolic timing-error estimator (PTEE) determines a parabolic timing-error estimate, based on equalizer coefficients corresponding to a first portion of a digital signal received during a first time period, and equalizer coefficients corresponding to a second portion of the digital signal received during a second time period. The PTEE provides the parabolic timing-error estimate to a timing-correction value unit, which generates, based, at least in part, on the parabolic timing-error estimate, a timing-correction value used to correct timing error for a third portion of the digital signal received during a third time period.