This paper presents a new model for prediction of wave propagation in indoor and outdoor environments. The method is based on 2D ray-tracing techniques using Image Theory (IT) to take into account all valid paths. The computation of fields is based on Geometrical Optics (GO) and Uniform Theory of Diffraction (UTD). A new approach for transmitted rays through the walls is proposed and validated by comparison with results obtained through FDTD method.
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