Statistical Modelling of Loss on Short Paths

There is a frequent requirement in spectrum sharing studies to assess transmission loss between terminals of different systems with a wide range of mutual geometries. Existing propagation models are often tailored to a few standardised geometries, primarily those relating to wanted paths or intra-system interference. Furthermore, they are often specified for use in environments that are subjectively defined (i.e. ‘urban’ or ‘suburban’). The wide availability of open data relating to the built environment opens the possibility of a more objective categorisation of propagation environments. This paper compares predictions from a proposed statistical model with measurements made below 3 GHz.