A Hybrid TDPE/FDTD Method for Site-Specific Modeling of O2I Radio Wave Propagation

被引：19

作者：

Feng, Ju ^{[1
,2
]}

Zhou, Liang ^{[1
]}

Xu, Xiaomin ^{[1
]}

Liao, Cheng ^{[1
]}

机构：

[1] Southwest Jiaotong Univ, Electromagnet Inst, Chengdu 610031, Sichuan, Peoples R China

[2] Sci & Technol Elect Informat Control Lab, Chengdu 610031, Sichuan, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2018年 / 17卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Finite-difference time-domain (FDTD) method; outdoor-to-indoor (O2I) radio channel; site-specific model; time-domain parabolic equation (TDPE) method;

D O I：

10.1109/LAWP.2018.2861471

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：

A hybrid time-domain parabolic equation/finite-difference time-domain (FDTD) method for site-specific modeling of outdoor-to-indoor (O2I) radio wave propagation is presented in this letter. It provides fast three-dimensional deterministic propagation predictions in a mixed environment containing both large-scale outdoor areas and indoor scenarios with specific detailed structures. The proposed hybrid method is evaluated by comparison with the four-ray model, via a canonical single knife edge propagation example. The simulation results, which agree well with each other, are applied to predicting the radio wave propagation in a geo-based O2I scenario on an island. An accurate field strength distribution and impulse response are obtained at a far lower computational cost than with a pure FDTD solution. The method is a perfect choice for applications involving targeted integrated environmental modeling.

引用

页码：1652 / 1655

页数：4

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