Ray-tracing in Urban Macro Campus Networks

In this work, we demonstrate how a channel sounding campaign is recreated using a proprietary ray-tracing (RT) based radio propagation simulator and evaluate the simulation in terms of the achieved accuracy. In the 3.7 GHz campaign, we used a uniform cylindrical array (UCA) in an urban macro campus scenario in downtown Berlin to determine single directional channel impulse responses. Initial results for the path loss were determined from the processed simulation and measurement data. Although a similar trend can be observed, there is still room for improvement. Impacts from the RT configuration with respect to the chosen 3D geometry data, the considered material properties as well as physical effects are discussed.