Adaptive Width Peak Cancellation Scheme For Multicarrier Systems

In this paper, a new Peak-to-Average Power Ratio (PAPR) reduction technique, called Adaptive Width Peak Cancellation (AWPC), for multicarrier systems is proposed. The principle of this technique is to control the peak cancellation pulse width, according to the width of each peak of the original signal. Secondly, we propose to combine the AWPC and the clipping techniques where an interesting improvement is noticed. These proposed techniques outperform the conventional Peak Cancellation (PC) technique which use only one pulse width for all peaks whatever the signal peak width. Numerical results show that a better PAPR reduction gain is reached while less EVM distortion is introduced.