A 3D ray-tracing tool for broadband wireless systems

To support future broadband and wireless indoor system definition, planning tools are required. This paper presents a 3D ray-tracing tool developed for the millimeter wave band around 60 GHz. After recalling the ray-tracing principles, we present some results of comparison between propagation measurements and predictions. We also focus attention on the optimum values of electromagnetic characteristics of building materials and on the optimum number of reflections to be considered for accurate narrow-band and wide-band predictions.