Parabolic distribution of scatterers for street-dominated mobile environments

We propose a parabolic scattering model (PSM) to complement the widely used circular scattering model for street-dominated environments, where street canyons favor propagation in narrow angular ranges centered on the street direction. The proposed model is based on the recently introduced semi-geometrically based statistical (SGBS) model and the geometric classification (GEC). The SGBS model defines the distribution of scatterers contributing to the final reradiation of multipath components to the receiver and the GEC defines spatio-temporal clusters using a geometric approach, which simulates different propagation classes based on their suitability to specific radio environments. Expressions are then provided for the power azimuthal spectrum (PAS), angular constriction, variance of received power, and Doppler spectrum (DS) using the PSM, all of which are obtained as seen from the mobile unit. Results for the PSM are also compared with the experimental data provided for dense urban macrocells, for which it has been shown that the proposed model produces PAS and DS that closely agree with the measurement.