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Path Loss Characteristics Of A City Street Scene With A Site Specific Propagation Prediction Tool


S. Sakthitharan, P. Thirumaraiselvan, M. Mariappan, R. Sudharshan,R. Rameshkumar
Abstract

This paper considers an approach for developing a simulation tool to predict the path loss characteristics of an outdoor environment, applicable to a general city street scene. In this approach, the size of the scattering objects are assumed much larger than the wavelength of the EM wave and hence the EM waves behave like optical rays. Interactions of rays with the objects in the surroundings are tracked using a three-dimensional Shoot and Bounce Raytracing (SBR) technique. From the predicted parameters, received electric field intensity is computed using the Geometrical Optics theory. Other than signal reflections and transmissions, single diffraction from diffracting corners and edges are also included whereby the received field strength is determined using the Uniform Geometrical Theory of Diffraction. Comparison between the published measurements in Ottawa city streets of Canada shows good results.

Volume 12 | Issue 2

Pages: 1755-1763

DOI: 10.5373/JARDCS/V12I2/S20201217