Abstract—This paper provides new statistical models for air-toground channels in an urban environment. The model is derived to operate at frequencies from 200MHz to 5GHz. Issues such as path loss and shadowing are evaluated as a function of the elevation angle to the airborne platform, rather than the more usual separation distance used for terrestrial mobile communications. Results demonstrate the advantages of an airto-ground channel for urban communication, and relayed peerto-peer links in particular. Keywords-Radio propagation; air-to-ground channel; path loss; shadowing; statistical channel models; urban environment
Qixing Feng, Joe McGeehan, Eustace K. Tameh, Andre