Comparative analysis of finite‐difference and split‐step based parabolic equation methods for tunnel propagation modelling
Abstract Radio wave propagation modelling in railway environments is of fundamental importance in designing reliable train communication systems. Parabolic equation (PE) methods have been widely applied to the modelling of wave propagation in tunnels due to their high computational efficiency and fi...
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| Format: | Article |
| Language: | English |
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Wiley
2024-02-01
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| Series: | IET Microwaves, Antennas & Propagation |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/mia2.12439 |
| _version_ | 1797301742853947392 |
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| author | Hao Qin Xingqi Zhang |
| author_facet | Hao Qin Xingqi Zhang |
| author_sort | Hao Qin |
| collection | DOAJ |
| description | Abstract Radio wave propagation modelling in railway environments is of fundamental importance in designing reliable train communication systems. Parabolic equation (PE) methods have been widely applied to the modelling of wave propagation in tunnels due to their high computational efficiency and fidelity. The finite‐difference parabolic equation (FDPE) and the split‐step parabolic equation (SSPE) methods are two commonly used approaches to solve PE numerically. However, the relevant literature is still missing a comprehensive study of their performance, including the selection of parameters such as discretisation steps and the tradeoffs involved in terms of their accuracy and efficiency, especially as current wireless systems shift to high frequencies. In this study, a systematic analysis of the error and computational complexity of the FDPE and SSPE methods for radio wave propagation modelling in tunnels is provided. Guidelines for the choice of their parameters are provided, and their performance is demonstrated through both numerical examples and experimental measurements in actual tunnel cases. |
| first_indexed | 2024-03-07T23:26:03Z |
| format | Article |
| id | doaj.art-c0d849d3cc234a49967e9c5f6a4674f6 |
| institution | Directory Open Access Journal |
| issn | 1751-8725 1751-8733 |
| language | English |
| last_indexed | 2024-03-07T23:26:03Z |
| publishDate | 2024-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Microwaves, Antennas & Propagation |
| spelling | doaj.art-c0d849d3cc234a49967e9c5f6a4674f62024-02-21T03:51:36ZengWileyIET Microwaves, Antennas & Propagation1751-87251751-87332024-02-01182597210.1049/mia2.12439Comparative analysis of finite‐difference and split‐step based parabolic equation methods for tunnel propagation modellingHao Qin0Xingqi Zhang1School of Electrical and Electronic Engineering University College Dublin Dublin IrelandSchool of Electrical and Electronic Engineering University College Dublin Dublin IrelandAbstract Radio wave propagation modelling in railway environments is of fundamental importance in designing reliable train communication systems. Parabolic equation (PE) methods have been widely applied to the modelling of wave propagation in tunnels due to their high computational efficiency and fidelity. The finite‐difference parabolic equation (FDPE) and the split‐step parabolic equation (SSPE) methods are two commonly used approaches to solve PE numerically. However, the relevant literature is still missing a comprehensive study of their performance, including the selection of parameters such as discretisation steps and the tradeoffs involved in terms of their accuracy and efficiency, especially as current wireless systems shift to high frequencies. In this study, a systematic analysis of the error and computational complexity of the FDPE and SSPE methods for radio wave propagation modelling in tunnels is provided. Guidelines for the choice of their parameters are provided, and their performance is demonstrated through both numerical examples and experimental measurements in actual tunnel cases.https://doi.org/10.1049/mia2.12439electromagnetic wave propagationparabolic equationsradiowave propagationtunnels |
| spellingShingle | Hao Qin Xingqi Zhang Comparative analysis of finite‐difference and split‐step based parabolic equation methods for tunnel propagation modelling IET Microwaves, Antennas & Propagation electromagnetic wave propagation parabolic equations radiowave propagation tunnels |
| title | Comparative analysis of finite‐difference and split‐step based parabolic equation methods for tunnel propagation modelling |
| title_full | Comparative analysis of finite‐difference and split‐step based parabolic equation methods for tunnel propagation modelling |
| title_fullStr | Comparative analysis of finite‐difference and split‐step based parabolic equation methods for tunnel propagation modelling |
| title_full_unstemmed | Comparative analysis of finite‐difference and split‐step based parabolic equation methods for tunnel propagation modelling |
| title_short | Comparative analysis of finite‐difference and split‐step based parabolic equation methods for tunnel propagation modelling |
| title_sort | comparative analysis of finite difference and split step based parabolic equation methods for tunnel propagation modelling |
| topic | electromagnetic wave propagation parabolic equations radiowave propagation tunnels |
| url | https://doi.org/10.1049/mia2.12439 |
| work_keys_str_mv | AT haoqin comparativeanalysisoffinitedifferenceandsplitstepbasedparabolicequationmethodsfortunnelpropagationmodelling AT xingqizhang comparativeanalysisoffinitedifferenceandsplitstepbasedparabolicequationmethodsfortunnelpropagationmodelling |