Modelling of angular dispersion due to rough surface scattering for implementation in ray-tracing-based propagation prediction tools

M.R.J.A.E. Kwakkernaat, M.H.A.J. Herben

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

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This paper describes the modelling of scattering caused by irregular surfaces as a basis for im-plementation in ray-tracing methods. An approach is presented in a first attempt to model the dispersive effects, caused by scattering on surfaces which have "random" irregularities, directly at the receiver. The method is based on assigning an effective stochastic roughness to a specific surface. The scattering effects caused by the surface roughness include the combined effects of both the surface irregularities and changes in material properties. The possibility of including the model into a 3-D ray-tracer is outlined. The results of simulations and measurements show that the method can be used to model the dispersive effects of rough surface scattering in a manner similar to using the reflection reduction factor for Gaussian surfaces, except that the reduced power in the specular direction is distributed in the angular domain.
Originele taal-2Engels
TitelProceedings of COST 2100 Pervasive Mobile & Ambient Wireless Communications, 16-18 February 2009, Braunschweig, Germany
Pagina's1-23
StatusGepubliceerd - 2009

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