Study of Propagation Mechanisms in Dynamical Railway Environment to Reduce Computation Time of 3D Ray Tracing Simulator
In order to better assess the behaviours of the propagation channel in a confined environment such as a railway tunnel for subway application, we present an optimization method for a deterministic channel simulator based on 3D ray tracing associated to the geometrical optics laws and the uniform the...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2013-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2013/785675 |
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| _version_ | 1849304943348940800 |
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| author | Siham Hairoud Pierre Combeau Yannis Pousset Yann Cocheril Marion Berbineau Rodolphe Vauzelle |
| author_facet | Siham Hairoud Pierre Combeau Yannis Pousset Yann Cocheril Marion Berbineau Rodolphe Vauzelle |
| author_sort | Siham Hairoud |
| collection | DOAJ |
| description | In order to better assess the behaviours of the propagation channel in a confined environment such as a railway tunnel for subway application, we present an optimization method for a deterministic channel simulator based on 3D ray tracing associated to the geometrical optics laws and the uniform theory of diffraction. This tool requires a detailed description of the environment. Thus, the complexity of this model is directly bound to the complexity of the environment and specifically to the number of facets that compose it. In this paper, we propose an algorithm to identify facets that have no significant impact on the wave propagation. This allows us to simplify the description of the geometry of the modelled environment by removing them and by this way, to reduce the complexity of our model and therefore its computation time. A comparative study between full and simplified environment is led and shows the impact of this proposed method on the characteristic parameters of the propagation channel. Thus computation time obtained from the simplified environment is 6 times lower than the one of the full model without significant degradation of simulation accuracy. |
| format | Article |
| id | doaj-art-3b36241d4d3c49c3a435c02a5b5cb210 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-3b36241d4d3c49c3a435c02a5b5cb2102025-08-20T03:55:36ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772013-01-01201310.1155/2013/785675785675Study of Propagation Mechanisms in Dynamical Railway Environment to Reduce Computation Time of 3D Ray Tracing SimulatorSiham Hairoud0Pierre Combeau1Yannis Pousset2Yann Cocheril3Marion Berbineau4Rodolphe Vauzelle5XLIM UMR CNRS 7252, SIC Department, University of Poitiers, Bât. SP2MI, Téléport 2, Boulevard Marie et Pierre Curie, BP 30179, 86962 Futuroscope Cedex, FranceXLIM UMR CNRS 7252, SIC Department, University of Poitiers, Bât. SP2MI, Téléport 2, Boulevard Marie et Pierre Curie, BP 30179, 86962 Futuroscope Cedex, FranceXLIM UMR CNRS 7252, SIC Department, University of Poitiers, Bât. SP2MI, Téléport 2, Boulevard Marie et Pierre Curie, BP 30179, 86962 Futuroscope Cedex, FranceUniversity of Lille Nord de France, and IFSTTAR, LEOST, 59650 Villeneuve D’Ascq, FranceUniversity of Lille Nord de France, and IFSTTAR, LEOST, 59650 Villeneuve D’Ascq, FranceXLIM UMR CNRS 7252, SIC Department, University of Poitiers, Bât. SP2MI, Téléport 2, Boulevard Marie et Pierre Curie, BP 30179, 86962 Futuroscope Cedex, FranceIn order to better assess the behaviours of the propagation channel in a confined environment such as a railway tunnel for subway application, we present an optimization method for a deterministic channel simulator based on 3D ray tracing associated to the geometrical optics laws and the uniform theory of diffraction. This tool requires a detailed description of the environment. Thus, the complexity of this model is directly bound to the complexity of the environment and specifically to the number of facets that compose it. In this paper, we propose an algorithm to identify facets that have no significant impact on the wave propagation. This allows us to simplify the description of the geometry of the modelled environment by removing them and by this way, to reduce the complexity of our model and therefore its computation time. A comparative study between full and simplified environment is led and shows the impact of this proposed method on the characteristic parameters of the propagation channel. Thus computation time obtained from the simplified environment is 6 times lower than the one of the full model without significant degradation of simulation accuracy.http://dx.doi.org/10.1155/2013/785675 |
| spellingShingle | Siham Hairoud Pierre Combeau Yannis Pousset Yann Cocheril Marion Berbineau Rodolphe Vauzelle Study of Propagation Mechanisms in Dynamical Railway Environment to Reduce Computation Time of 3D Ray Tracing Simulator International Journal of Antennas and Propagation |
| title | Study of Propagation Mechanisms in Dynamical Railway Environment to Reduce Computation Time of 3D Ray Tracing Simulator |
| title_full | Study of Propagation Mechanisms in Dynamical Railway Environment to Reduce Computation Time of 3D Ray Tracing Simulator |
| title_fullStr | Study of Propagation Mechanisms in Dynamical Railway Environment to Reduce Computation Time of 3D Ray Tracing Simulator |
| title_full_unstemmed | Study of Propagation Mechanisms in Dynamical Railway Environment to Reduce Computation Time of 3D Ray Tracing Simulator |
| title_short | Study of Propagation Mechanisms in Dynamical Railway Environment to Reduce Computation Time of 3D Ray Tracing Simulator |
| title_sort | study of propagation mechanisms in dynamical railway environment to reduce computation time of 3d ray tracing simulator |
| url | http://dx.doi.org/10.1155/2013/785675 |
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