Performance Evaluation of Time Hopping UWB Transmission Using S-Rake Receiver

In this paper, we address a performance evaluation of Time Hopping Ultra-Wideband (TH-UWB) transmission with proposed procedures, based on Pulse Position Modulation (PPM) and considering IEEE 802.15.3a Channel Models (CM1, CM2, CM3, CM4). Moreover, a Selective Rake (S-Rake) receiver is designed to counter the effects of multipath fading occurring in UWB channel Models. The TH-UWB signal detection through the S-Rake receiver requires a channel estimation which is done here using MaximumLikelihood (ML) approach, and via two methods, Data Added (DA) and Non-Data Added (NDA). Important comparisons based on simulation results of UWB channel models, estimation methods, and multiuser access detection have been done. Finally, the MSE of the estimated channel parameters and the BER versus SNR are both assessed and discussed. Key-Words: Channel Estimation, DA, ML, NDA, PPM, S-Rake, TH-UWB.