Power Spectral Density and Cubic Metric for the OFDM/OQAM Modulation

OFDM/OQAM is now a recognized alternative to conventional OFDM for the transmission of signals over multipath fading channels. Indeed with OFDM/OQAM, an appropriate pulse shaping can be introduced to fight against time and frequency dispersion. The paper aims at showing that this pulse shaping gives interesting spectral properties in the case of a cubic nonlinear power amplifier. In a second step, an original algorithm is also proposed to reduce either the peak-to-average power ratio (PAPR) or the cubic metric (CM) of the OFDM/OQAM signal