FDTD Analysis of Propagation and Scattering Characteristics of Microwaves in Random Forests Media for WiMAX Communication

Abstract

WiMAX wireless communication has been rapidly developed for broadband mobile communication. To design excellent high performance mobile communication systems, accurate evaluation of communication systems is indispensable. In the past, building and street effects on high speed signal propagation were studied by FDTD method. However, wave propagation and scattering characteristics by presence of forest and trees are not so much studied. In this paper, the effects of multiple scattering and attenuation of microwaves over forests in WiMAX wireless communications are analyzed numerically using FDTD method. These results may yield important factors for design of high performance and reliable WiMAX communication systems.