Performance of hybrid pulse shape amplitude modulation for UWB communications systems over multipath channels

This paper describes a hybrid Pulse Shape Amplitude Modulation (PSAM) scheme for time hopping ultrawideband (TH-UWB) communication system, which is the combination of Pulse Amplitude Modulation (PAM) and Pulse Shape Modulation (PSM) based on modified Hermite pulses (MHP). This scheme is suitable for high rate data transmission applications because b=log
2
(MN) bits can be mapped with one waveform. The system performance over multipath channel is derived in the single- and mult- user environment.