Performance of Different UWB Pulse Shapes Under High Data Rate Indoor Channel

Impulse radio system has an ultra wide bandwidth, which makes it a viable solution for short range high data rate system. With the introduction of the FCC UWB spectral mask, numerous works have produced pulse shapes whose spectrum closely fits the FCC spectral mask. Such pulse shapes have better energy per bandwidth ratio and thus perform better against noise. This paper shows that aside from the energy, there are other factors that also affect the performance under high speed indoor channel. The authors also show a simple yet efficient pulse shape hopping (PSH) method to improve the performance of the system, by exploiting orthogonal pulses.