Frequency and Time Hopping PPM UWB Multiple Access Communication Scheme

Abstract—In this paper we propose frequency and time hop-ping pulse position modulation (FTH-PPM) ultra wideband (UWB) for multiple access communications. We have derived and investigated the bit error probability for the multi-user synchronous transmitter case in multipath channels with Additive White Gaussian Noise (AWGN). Simulation results show that bit error probability performance of FTH-PPM UWB out performs the time hopping pulse position modu-lated (TH-PPM) UWB system. It also show that multiuser capacity of FTH-PPM UWB system is much better than TH-PPM UWB system. Index Terms—Frequency hopping, Hybrid hopping, Modu-lation, Multiple access, Time hopping, UWB.