UWB Channel Modeling: A Markovian Formulation Based on Degradation Level Concept

Ultra wide band (UWB) thanks to its physical characteristics became one of most suitable technology for indoor and outdoor personal communications. Many works have already treated problematic involving UWB transmission channel. However, at the best of our knowledge, all proposed model work at the physical level or they investigate only some aspects of channel interactions. Instead, in our work, we provide an approach to obtain an accurate high level channel model based on Discrete Time Markov Chain (DTMC) modeling useful in every simulative context. In particular, our model is based on the concept of error trace analysis and on degradation level of a given observation window: we do not analyze the single packet, but we fix an observation window and we evaluate the degradation level of the link computing the PER relative to the specific window. This new approach is more accurate than classic Gilbert-Elliot (G-E) model, 3rd order Markov model and Markov based Trace Analysis (MTA) Model as a comparative analysis, based on the occurrence of correctly and wrong received packets, showed.