A Generalized Elliptical Scattering Model for the Spatial Characteristics of Mobile Channels

Geometrically based models are commonly used for the study, analysis and simulation of the wireless propagation channel. This paper presents a two-dimensional geometric scattering model for the description of the angle of arrival (AoA) distribution in mobile environments. In our approach, scatterers are uniformly distributed in hollow ellipses around each communication node. We derive closed-form expressions for the probability density function of the azimuth AoA of the incoming multipaths at each unit and investigate the impact of scatterer distribution on the angular spread of the received signal. Simulation results verify the accuracy of the model. Finally, we show that the proposed method is a generalization of popular geometric channel models.