An effective subdivision algorithm for diffuse scattering of ray tracing
作者： Mingming Gan , Xuhong Li , Fredrik Tufvesson , Thomas Zemen
DOI: 10.1109/URSIGASS.2014.6929365
关键词:
摘要: Accurate modeling of electromagnetic wave propagation by means ray tracing (RT) includes not only specular reflection, penetration through dielectric blocks and diffraction, but also diffuse scattering mechanisms. The accuracy, supported a precise description the environment, is achieved at very high computational complexity. This complexity scales directly with number paths, which paths comprise large proportion. In this paper, we propose general subdivision algorithm for RT in indoor scenarios based on concentric circles. proper tile size defined according to system bandwidth. method significantly reduces no loss accuracy. verified evaluating power delay profile (PDP), spread angular spread.
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