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A ray tracing algorithm for intelligent transport systems in tunnels

Gan, Mingming; Xu, Zhinan; Shivaldova, Veronika; Paier, Alexander; Tufvesson, Fredrik LU and Zemen, Thomas (2014) IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC), 2014 In [Host publication title missing]
Abstract
It is well-known that the radio wave propagation mechanisms inside a tunnel are different from the typical outdoor and indoor situations. Since the tunnels represent a significant type of vehicular environments, understanding the channel characteristics for the in-tunnel scenario is crucial for intelligent transport systems design. A widely used tool for simulating channel characteristics for outdoor and indoor scenarios is a deterministic propagation prediction tool, known as ray tracing (RT). However, RT applied for tunnel scenarios has not been studied adequately. In this paper, we first evaluate the real-world in-tunnel vehicle-to-vehicle radio channel measurements on the basis of time-varying power delay profile analysis. Secondly we... (More)
It is well-known that the radio wave propagation mechanisms inside a tunnel are different from the typical outdoor and indoor situations. Since the tunnels represent a significant type of vehicular environments, understanding the channel characteristics for the in-tunnel scenario is crucial for intelligent transport systems design. A widely used tool for simulating channel characteristics for outdoor and indoor scenarios is a deterministic propagation prediction tool, known as ray tracing (RT). However, RT applied for tunnel scenarios has not been studied adequately. In this paper, we first evaluate the real-world in-tunnel vehicle-to-vehicle radio channel measurements on the basis of time-varying power delay profile analysis. Secondly we introduce a RT tool that includes influence of the moving objects, to predict wave propagation mechanisms in the tunnel. In order to reduce computational complexity of RT, we suggest to combine an approximate algorithm for the higher-order reflection components with conventional RT and use a novel subdivision algorithm for modeling the diffuse scattering. Combining the higher-order reflection algorithm with conventional RT allows us to obtain more accurate delay spread results. The numerical simulations show that contribution of both the higher-order reflection and the diffuse components are equally important for the in-tunnel scenarios. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
computational complexity, intelligent transport systems, ray tracing (RT), tunnel, vehicle-to-vehicle
in
[Host publication title missing]
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC), 2014
external identifiers
  • wos:000352733300001
  • scopus:84915758693
DOI
10.1109/WIVEC.2014.6953210
language
English
LU publication?
yes
id
91c36e02-d8cd-49bb-9d4f-b1ba3aabfc95 (old id 5218996)
date added to LUP
2015-03-31 11:12:03
date last changed
2017-01-01 07:55:36
@inproceedings{91c36e02-d8cd-49bb-9d4f-b1ba3aabfc95,
  abstract     = {It is well-known that the radio wave propagation mechanisms inside a tunnel are different from the typical outdoor and indoor situations. Since the tunnels represent a significant type of vehicular environments, understanding the channel characteristics for the in-tunnel scenario is crucial for intelligent transport systems design. A widely used tool for simulating channel characteristics for outdoor and indoor scenarios is a deterministic propagation prediction tool, known as ray tracing (RT). However, RT applied for tunnel scenarios has not been studied adequately. In this paper, we first evaluate the real-world in-tunnel vehicle-to-vehicle radio channel measurements on the basis of time-varying power delay profile analysis. Secondly we introduce a RT tool that includes influence of the moving objects, to predict wave propagation mechanisms in the tunnel. In order to reduce computational complexity of RT, we suggest to combine an approximate algorithm for the higher-order reflection components with conventional RT and use a novel subdivision algorithm for modeling the diffuse scattering. Combining the higher-order reflection algorithm with conventional RT allows us to obtain more accurate delay spread results. The numerical simulations show that contribution of both the higher-order reflection and the diffuse components are equally important for the in-tunnel scenarios.},
  author       = {Gan, Mingming and Xu, Zhinan and Shivaldova, Veronika and Paier, Alexander and Tufvesson, Fredrik and Zemen, Thomas},
  booktitle    = {[Host publication title missing]},
  keyword      = {computational complexity,intelligent transport systems,ray tracing (RT),tunnel,vehicle-to-vehicle},
  language     = {eng},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  title        = {A ray tracing algorithm for intelligent transport systems in tunnels},
  url          = {http://dx.doi.org/10.1109/WIVEC.2014.6953210},
  year         = {2014},
}