Characterisation of radio wave propagation in complex indoor environments with and accurate Ray Launching and UTD method

Abstract

The combination on an algorithm based on Geometrical Optics (GO) and diffraction calculation on the basis of the Uniform Theory of Diffraction (UTD) is presented in this paper. The aim is to improve the basic Ray Launching code, based on GO, which takes into account reflected and refracted rays. With the UTD extension, further propagation of diffracted rays is also considered. The comparison with real measurements proves that the proposed hybrid GO-UTD algorithm yields excellent results and that the UTD extension definitely improves the simulations of the Ray Launching algorithm for realistic environments.