A ray splitting model for indoor radio propagation associated with complex geometries

A ray-splitting method is presented for analysis of wave propagation in an indoor environment associated with wideband cordless radio channels. A compact bundle of rays emanating from a radio source splits up into new rays periodically to maintain a nearly constant spatial resolution, independent of the distance between source and any scatterer. Wedge diffraction is considered additionally in a simplified manner. This method predicts simultaneously mean values of the impulse response of an indoor radio channel from a signal source to a number of receivers with specified locations and antenna patterns. A comparison of predicted and measured data within an office building shows good agreement.