Material Parameter Optimization for Raytracing Simulations in a 300 GHz Indoor Scenario

This paper analyzes THz communications, by comparing 300 GHz channel measurements from a conference room with corresponding raytracing simulations. The room geometry, as well as the material parameters are carefully measured, to ensure accurate simulation results. Additionally, all relevant interaction mechanisms, i.e. reflections, diffractions and scattering, are used during the raytracing simulations. Afterwards, simulated annealing is used, to improve the accuracy of the previously measured material parameters, to obtain better results for the raytracing simulations. It is shown, that the match between the channel measurements and raytracing simulations significantly improve through the usage of the proposed simulated annealing algorithm.