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A path loss and shadowing model for multilink vehicle-to-vehicle channels in urban intersections

Nilsson, Mikael G. LU ; Gustafson, Carl LU ; Abbas, Taimoor LU and Tufvesson, Fredrik LU (2018) In Sensors (Switzerland) 18(12).
Abstract

The non line-of-sight (NLOS) scenario in urban intersections is critical in terms of traffic safety—a scenario where Vehicle-to-Vehicle (V2V) communication really can make a difference by enabling communication and detection of vehicles around building corners. A few NLOS V2V channel models exist in the literature but they all have some form of limitation, and therefore further research is need. In this paper, we present an alternative NLOS path loss model based on analysis from measured V2V communication channels at 5.9 GHz between six vehicles in two urban intersections. We analyze the auto-correlation of the large scale fading process and the influence of the path loss model on this. In cases where a proper model for the path loss... (More)

The non line-of-sight (NLOS) scenario in urban intersections is critical in terms of traffic safety—a scenario where Vehicle-to-Vehicle (V2V) communication really can make a difference by enabling communication and detection of vehicles around building corners. A few NLOS V2V channel models exist in the literature but they all have some form of limitation, and therefore further research is need. In this paper, we present an alternative NLOS path loss model based on analysis from measured V2V communication channels at 5.9 GHz between six vehicles in two urban intersections. We analyze the auto-correlation of the large scale fading process and the influence of the path loss model on this. In cases where a proper model for the path loss and the antenna pattern is included, the de-correlation distance for the auto-correlation is as low as 2–4 m, and the cross-correlation for the large scale fading between different links can be neglected. Otherwise, the de-correlation distance has to be much longer and the cross-correlation between the different communication links needs to be considered separately, causing the computational complexity to be unnecessarily large. With these findings, we stress that vehicular ad-hoc network (VANET) simulations should be based on the current geometry, i.e., a proper path loss model should be applied depending on whether the V2V communication is blocked or not by other vehicles or buildings.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Channel modeling, Correlation, Diversity, Large scale fading, Multiple links, Obstruction, Path loss, Shadow fading, Vehicle-to-vehicle
in
Sensors (Switzerland)
volume
18
issue
12
publisher
MDPI AG
external identifiers
  • scopus:85058654519
ISSN
1424-8220
DOI
10.3390/s18124433
language
English
LU publication?
yes
id
7b0f1aed-8ccf-4cc5-9629-445a36f1b267
date added to LUP
2019-01-04 07:58:07
date last changed
2019-01-04 07:58:07
@article{7b0f1aed-8ccf-4cc5-9629-445a36f1b267,
  abstract     = {<p>The non line-of-sight (NLOS) scenario in urban intersections is critical in terms of traffic safety—a scenario where Vehicle-to-Vehicle (V2V) communication really can make a difference by enabling communication and detection of vehicles around building corners. A few NLOS V2V channel models exist in the literature but they all have some form of limitation, and therefore further research is need. In this paper, we present an alternative NLOS path loss model based on analysis from measured V2V communication channels at 5.9 GHz between six vehicles in two urban intersections. We analyze the auto-correlation of the large scale fading process and the influence of the path loss model on this. In cases where a proper model for the path loss and the antenna pattern is included, the de-correlation distance for the auto-correlation is as low as 2–4 m, and the cross-correlation for the large scale fading between different links can be neglected. Otherwise, the de-correlation distance has to be much longer and the cross-correlation between the different communication links needs to be considered separately, causing the computational complexity to be unnecessarily large. With these findings, we stress that vehicular ad-hoc network (VANET) simulations should be based on the current geometry, i.e., a proper path loss model should be applied depending on whether the V2V communication is blocked or not by other vehicles or buildings.</p>},
  articleno    = {4433},
  author       = {Nilsson, Mikael G. and Gustafson, Carl and Abbas, Taimoor and Tufvesson, Fredrik},
  issn         = {1424-8220},
  keyword      = {Channel modeling,Correlation,Diversity,Large scale fading,Multiple links,Obstruction,Path loss,Shadow fading,Vehicle-to-vehicle},
  language     = {eng},
  month        = {12},
  number       = {12},
  publisher    = {MDPI AG},
  series       = {Sensors (Switzerland)},
  title        = {A path loss and shadowing model for multilink vehicle-to-vehicle channels in urban intersections},
  url          = {http://dx.doi.org/10.3390/s18124433},
  volume       = {18},
  year         = {2018},
}