Performance of Multi-User UWB Systems Based on Receive Diversity

In this paper, multiple receive antennas are applied to multi-user binary pulse amplitude modulation (PAM) ultra-wideband (UWB) systems to achieve high data rate communications. The effects of spatial diversity on the performance of PAM UWB systems are analytically investigated. We observe the link reliability at different distance and evaluate the distance between the transmitter and receiver (T-R separation distance) performance. Numerical results show that the transmission and receive distance performance can be enhanced by spatial diversity combining. Moreover, the pulse shapes are presented that satisfies the FCC spectral mask. The simulation was carried out depending on communication distance under noisy and multi-user interference environment. We can know that multiple receive antennas has the reliability of the transmission at the more than double distance.