DMT PAR-reduction by weighted cancellation waveforms

DMT (discrete multitone) signals have a high peak-toaverage power ratio (PAR). In the transmitters, the PAR governs the necessary resolution of the digitalto-analog converter (DAC) and is an important factor for the power consumption of the line-driver. In a recent paper, we presented a low complexity PAR-reduction method for DMT-transmitters. Here we improve a central part of this method. Computer simulations show a small but clear clip rate and clip power performance improvement with almost no increase in complexity.