The Principle and Application to the Reduction of PTS’ Complexity
降低PTS方法复杂度的原理及应用

The conventional PTS method of reducing OFDM signal's PAPR has large computation complexity because of the computation of all sets of the phase rotation vectors. In this paper,a general principle of finding appropriate phase rotation vectors by analyzing the rule of the appearance of peak value for OFDM signals is presented. Based on the principle,a novel method is proposed which can remarkably reduce the complexity of PTS with little degradation of system's performance,as illustrated by theoretical analysis and simulation results.