A corrective predistortion function is applied to a signal to compensate
for or cancel out distortion that is introduced by a component that
processes the signal. A disclosed example includes applying a corrective
predistortion function to a transmitted signal used for wireless
communications. A technique for selecting the corrective predistortion
function includes determining a current power level of the signal. When
the current power level is at or below a lift level between a maximum
signal power level and a minimum signal power level, a corrective
predistortion function corresponding to the lift level is applied to the
signal. When the actual signal power level is above the lift level, a
corrective predistortion function corresponding to the actual current
power level is applied.