Implementation of a fast distributed scattering model for Ray Tracing prediction

It is known that Diffuse Scattering (DS) modelling must be embedded into Ray Tracing propagation prediction tools to achieve realistic results. However, the extension of the common ray based approach to include DS phenomena results in an increased computational burden due to the distributed nature of DS, which supposedly requires wall-surface discretization and therefore a much higher number of elements to be considered in the visibility algorithm. In this work a fast DS model which doesn´t require discretization is implemented into a Ray Tracing propagation simulator and performance is assessed in terms of CPU time and result accuracy with respect to more conventional DS models.