Use of Random Building Height Model for Fixed Wireless Access Systems in Urban and Suburban Environments

This paper investigates stochastic propagation models appropriate for Fixed Wireless Access (FWA) Systems. A widely used model for the prediction of path loss in mobile systems for urban environments is the Walfisch-Bertoni model [1]. It was later modified to accommodate FWA systems in [2] and is known as the Random Building Height (RBH) model. In this paper, a comparison is made between the predictions made by the RBH model and a comprehensive set of propagation measurements taken in urban and suburban environments around Cambridge, UK. The comparisons show that at receiver antenna height of 10 m the model has a mean prediction error of 5.6 dB of in an urban environments and 11.8 dB in a suburban environments.