UWB Channel Model Measurements and Simulation in Vehicular Passenger Compartment

Vehicle wireless signal transceiver system has attracted startlingly extensive attention worldwide with great demands of high transmission rate, high precision and high security, where ultra-wideband (UWB) has a satisfying talent to meet these requirements. Channel modelling of diverse parts in a vehicle under different circumstances is indispensable to design wireless sensor system with stringent specification. In this paper, we extract various parameters for path loss model as well as the multi path delay model from the analysis after pretreatment of the frequency-domain signal collected from a vector network analyzer (VNA) with the frequency band from 2.5 GHz to 5 GHz. When establishing the experimental platform, we selected 16 signal transmission points with corresponding application value in the passenger compartment. During the measurements and analysis, we consider and compare the effects of no-load and full-load conditions on the extracted parameters. Also, it illustrates great correlation between the model generated form the vehicular passenger compartment and the model in the industrial scene defined in IEEE 802.15.4a.