Yazarlar

  • BildiriÖn baskısı açık2015
    Application of of Ray Tracing Technique into S-UTD-CH Model

    Tabakcioglu, Mehmet Baris; Ayberkin, Doruk

    To make higher accuracy predictions having less computation complexity, lower computation time, a lot of electromagnetic wave propagation models are developed. These models are classified into two classes, ray tracing based and numerical models. Computation complexity, computation time and accuracy of prediction of numerical model are high. On the contrary, computation complexity and computation time of ray tracing based model is lower. There is a tradeoff between computation time and accuracy. To predict the relative path loss at the receiver accurately, all ray paths have to be determined. In this study, after giving some brief information about some ray tracing based propagation models ray tracing software will be explained.

    AtıfWoS1
    Web of Scienceİncele
  • BildiriÖn baskısı açık2015
    Building Parameter Analysis with S-UTD-CH model in Multiple Diffraction

    Tabakcioglu, Mehmet Baris; Ayberkin, Doruk

    Electromagnetic wave propagation models are used in radio planning tool and coverage prediction. These models are based on ray tracing technique or numerical. Slope UTD with convex hull model is a model which has less computation time, higher accuracy of prediction and based on ray tracing technique. S-UTD-CH model is used in multiple diffraction due to that this model gives more accurate results in less computation time. Obstacles can be modelled as knife edge, wedge or cylinder in ultra-high frequencies. inner angle, structure type and relative permittivity constant and conductivity of obstacle and polarization type of electromagnetic wave change the relative path loss at the receiver. In the study, how building parameter changes the relative path loss is discussed.