Propagation modeling in complex rough environment based on ray tracing

In this paper, a theoretical study of propagation mechanism in complex indoor environment is carried out. A ray-tracing approach is applied to set the parameters allowing characterizing the indoor propagation. Two cases are considered. First when the tunnel reflecting walls are supposed to be flat. In this case, path Loss and impulse response of the channel at 60 GHz are derived taking into account the radiation pattern of both transmitting and receiving antennas and the electromagnetic properties of the reflecting surfaces. In the second case, the study is extended to the case where the reflecting walls are described by periodical sinusoidal roughness. The Pathak approach has been applied to estimate the scattering effect by the surface roughness on the channel characterization parameters. This study opens the perspective to analyze propagation in environments with random rough surfaces.