A weighted multiple-frequency method for ultra-wideband outdoor coverage prediction

Ultra-wideband (UWB) outdoor coverage prediction using ray tracing techniques is presented. The scenario consists of a farm area with clusters of scatterers over moderately varying terrain. A multiple frequency step approach, with weighted power levels is developed and shown to he useful in coverage and reliability prediction equivalent to a two-ray path loss model. Based on the simulation results, it is shown that UWB provides up. to 100 m range under different environmental conditions. The technique presented here can be generalized to UWB channel sounding using frequency scanning.