New synchronization schemes for UWB systems

摘要

This paper addresses the decision rules for synchronization in ultra-wideband (UWB) systems. The conventional decision rule cannot guarantee a good performance in receiver operations such as detection and decoding after the synchronization. To solve this problem, in this paper, we propose new decision rules for synchronization in UWB systems. We first derive an optimal decision rule based on the maximum likelihood (ML) criterion and then a simpler suboptimal decision rule. Simulation results show that the proposed decision rules have better synchronization performance than the conventional decision rule.