Title :
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
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;
Conference_Titel :
Antennas and Propagation (ISAP), 2014 International Symposium on
Conference_Location :
Kaohsiung
DOI :
10.1109/ISANP.2014.7026629
