Diffuse Scattering Models for mmWave V2X Communications in Urban Scenarios

This paper is concerned with the generation of accurate radio channel propagation models for mmWave transmissions for vehicle-to-everything (V2X) communications in urban scenarios. We emphasize the importance of capturing diffuse scattered rays for improved large-scale and small-scale radio channel propagation models. Our paper focuses on directive transmissions and compares various diffuse scattering models, arguing their advantage for the analysis of the mmWave radio links. The conclusions are that both received power levels and delay spread produce better estimates when the diffuse scatter models are enabled in the Wireless InSite ray-tracer that we use.