Application of ray tracing to derive channel models for future multi-gigabit systems

Applications of future multi-gigabit systems using frequencies at 60 GHz and beyond will also cover operational environments with non-line-of-sight conditions. Due to the high diffraction losses at millimetre-wave frequencies and beyond, establishing radio links in shadowing situations will require beam forming in order to exploit scattering and reflection processes. For the development and standardisation of these systems, double directional spatial channel models for non-line-of-sight situations have to be derived. Double directional channel models contain information both about angle of arrival at the receiver and angle of departure at the transmitter. An attractive possibility currently pursued both in research projects and standardisation is to derive these channel models based on ray-tracing simulations. This paper presents results from indoor channel measurements and shows the potential of ray tracing for 60 GHz channel modelling.