Dynamic Ray Tracing: A 3D Formulation

Ray tracing algorithms can simulate multipath radio propagation in presence of geometric obstacles that can represent buildings, objects or vehicles. When objects or vehicles are moving, which is the case of vehicular environments, it is possible to predict the multipath – and therefore the field - in the near future on the base of the current multipath geometry, assuming constant speeds or accelerations for moving objects, using an analytical extrapolation. A full-3D Dynamic Ray Tracing algorithm is here presented for multiple reflections on moving surfaces.