Browsing by Author "Yazgan, E"

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    Roof Shape Modelling for Multiple Diffraction Loss in Cellular Mobile Communication Systems
    (Taylor & Francis Ltd, 2002) Kara, A; Yazgan, E
    The effects of roof shapes on multiple diffraction loss in cellular mobile communication systems are investigated. Building roofs are modelled as finitely conducting wedges with different, included angles (peaked roofs). Multiple diffraction loss, a measure of diffraction loss due to multiple building geometry, is computed by using the method of UTD (uniform theory of diffraction) for 90degrees and 120degrees wedges over the communication paths oblique to building blocks. The results, compared with the absorbing edge model, 0degrees wedge, show that multiple diffraction loss decreases with increasing wedge angle.