ACCELERATED THREE DIMENSIONAL RAY TRACING TECHNIQUES USING RAY FRUSTUMS FOR WIRELESS PROPAGATION MODELS

被引：21

作者：

Kim, H. ^{[1
]}

Lee, H. ^{[1
]}

机构：

[1] Sogang Univ, Dept Elect Engn, Seoul, South Korea

来源：

PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2009年 / 96卷

关键词：

WAVE-PROPAGATION; HYBRID APPROACH; PREDICTION; ALGORITHM; DIVISION;

D O I：

10.2528/PIER09072303

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, accelerated techniques for three dimensional ray tracing using the concept of ray frustums are presented for the fast characterization of wireless communications, where various radio propagation paths such as wall-transmitted wave and scattered wave from buildings and ground are generated. To accommodate such scatterers, objects are modeled by triangulated meshes, and potential ray paths are searched and stored in the form of ray frustums. The presented acceleration techniques using the frustums include sorting of triangulated surfaces, hashing functions and space partitioning. The validity of the method is verified by comparison with measurement data.

引用

页码：21 / 36

页数：16

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