In this work we develop a computer-aided tool for propagation prediction of wireless channels based on a modified shooting and bouncing ray (SBR) method that is combined with GTD/UTD (geometrical theory of diffraction/uniform theory of diffraction). Our simulation results show that the new algorithm reduces the computation time while the accuracy of the algorithm is preserved. In this paper we also investigate the effects of receiver antenna height and antenna beamwidth on path loss and channel parameters for LMDS systems.
['Hossein Zare', 'Mahdi Nezafat', 'Abbas Mohammadi']
Study of buildings and antenna directivity effects on LMDS systems using a modified ray tracing algorithm