A new ADI-PE scheme with fourth-order accuracy for radio wave propagation prediction in tunnels

Author

Xianshi He ; Dawei Li ; Junhong Wang ; Shouliang Li

Author_Institution

Inst. of Lightwave Technol., Beijing Jiaotong Univ., Beijing, China

fYear

2014

fDate

2-5 Dec. 2014

Firstpage

259

Lastpage

260

Abstract

A new method for implementing the impedance boundary condition (IBC) of tunnel environment is presented, which is used in the Alternate Direction Implicit (ADI) method for solving the parabolic equation. The proposed method has fourth-order accuracy, and is used in the prediction of radio wave propagation in tunnels. Simulation results show that the proposed method not only has higher accuracy than available methods, but also retains the computational efficiency of the available methods with lower order accuracy.

Keywords

parabolic equations; radiowave propagation; ADI-PE scheme; IBC; alternate direction implicit method; computational efficiency; fourth-order accuracy; impedance boundary condition; lower order accuracy; parabolic equation; radiowave propagation; tunnel environment; Accuracy; Antennas and propagation; Boundary conditions; Equations; Impedance; Mathematical model; Propagation; Alternative Direction Implicit (ADI); impedance boundary condition; parabolic equation; radio wave propagation; tunnel environment;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (ISAP), 2014 International Symposium on

Conference_Location

Kaohsiung

Type

conf

DOI

10.1109/ISANP.2014.7026629

Filename

7026629