音频保留法降低OFDM信号的峰均功率比，其中使用CLIPPING方法寻找峰值消除信号。-tone reservation for papr reduction of ofdm signals.

PEAK TO AVERAGE POWER RATIO REDUCTION OF DM SIGNALS USING PEAK REDUCTION CARRIERS: ABSTRACT A technique is described for a better than 5 dB reduction in the Peak to Average Power Ratio (PAPR) of an OFDM signal.

TR significantly reduces the PAPR when operating with an optimal PRT set however, the performance of TR degrades with nonoptimal PRT sets. Finding the optimal PRT set is a nondeterministic polynomial-time (NP)-hard