Performance analysis of LDR UWB non-coherent receivers in multipath environments

This paper presents an analytical comparison of three modulation schemes applied to two low data rate (LDR) ultra wideband (UWB) non-coherent receivers, namely the quadratic detector and the differential detector. In order to evaluate properly the impact of UWB multipath channels on performance, new statistical models on energy collection are proposed, and then taken into account in the analytical expressions of the error probability. Finally, critical system parameters, such as the optimal integration time for energy collection or major synchronization tolerances (coarse synchronization granularity, clock constraints) are derived from the obtained results.