METHOD AND DEVICE FOR PEAK-TO-AVERAGE POWER RATIO REDUCTION IN AN OFDM SYSTEM

摘要

A signal determination unit for determining one or more reduction signals for transmission on one or more reduction subcarriers of an OFDM signal in a Tone Reservation PAPR reduction scheme, wherein the signal determination unit comprises an amplitude determination unit configured to determine a real part and an imaginary part of a target reduction amplitude (also called clipping noise) of the one or more reduction signals. A Weighted Least Square algorithm is proposed with separate real and imaginary parts matching resolution.