Site-Specific Models of the Received Power for Radio Communication in Urban Street Canyons

This paper presents site-specific models for the real-time prediction of the received power from waves propagating through urban street canyons (i.e., in the horizontal plane containing the transmitter and receiver) for radio communication in urban environments. The line-of-sight (LOS) and non-line-of-sight (NLOS) models presented here are based on the two-ray model and are used to predict the small-area average received power (i.e., long-term/shadow fading and distance-dependence). These models have two adjustable parameters that account for clutter such as road traffic and pedestrians, and for scattering from objects and buildings at street intersections, respectively. Validation of these models is performed with mobile-to-mobile measurements recorded in the high-rise sections of Denver and New York City for frequencies ranging from 430 MHz to 4.86 GHz.