An Efficient PAPR Reduction Method for Wavelet Packet Modulation Schemes

This paper proposes a novel peak-to-average power ratio (PAPR) reduction method for wavelet packet modulation (WPM) based multi-carrier systems. Orthogonal basis functions that minimize a newly derived PAPR upper bound are designed. The performance of the proposed orthogonal basis functions is compared to those of the conventional Daubechies basis functions and OFDM. Via these comparisons, it is shown that the proposed orthogonal basis functions achieve notable performance improvements over its comparatives.