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

作者：Feng, Ju^*; Zhou, Liang; Xu, Xiaomin; Liao, Cheng

来源：IEEE Antennas and Wireless Propagation Letters, 2018, 17(9): 1652-1655.

DOI：10.1109/LAWP.2018.2861471

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

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.

• 出版日期2018-9
• 单位西南交通大学