PAPR Analysis for Faster-Than-Nyquist Signaling in Satellite Communications

As a promising technology to improve the spectrum efficiency for future satellite communication networks, faster-than-Nyquist (FTN) signaling would inevitably introduce the undesired inter-symbol interference (ISI), which could lead to the higher peak-to-average power ratio (PAPR). In this paper, the PAPR for FTN signaling is analyzed in virtue of complementary cumulative distribution function (CCDF). Furthermore, based on the high power amplifier (HPA) model constructed according to digital video broadcasting-satellite-second generation (DVB-S2) and digital video broadcasting-satellite-second generation extension (DVB-S2X), the saturated input power back-off (IBO) for FTN signaling over non-linear satellite channels is investigated for the first time, which is of reference value for the practical application of FTN signaling in satellite communications.