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A traffic density model for radio overlapping in urban Vehicular Ad hoc Networks

Bastani, Saeed LU ; Landfeldt, Björn LU and Libman, Lavy (2011) Local Computer Networks In [Host publication title missing] p.85-92
Abstract
Vehicular traffic density is a key factor in determining the behaviour of radio overlapping and thus impacts performance of data and safety message communication in Vehicular Ad hoc Networks (VANETs). In this paper, we propose a novel density model for urban traffic systems and employ this model for the purpose of spatial-temporal analysis of radio overlapping. To model traffic density, we consider a signalized junction and road segments linked to that junction as basic building blocks of urban traffic systems. The density model enables us to derive a framework to explain trends and critical regions of radio overlapping corresponding to VANET scenarios targeted for urban transportation systems, which cannot be derived from uniform density... (More)
Vehicular traffic density is a key factor in determining the behaviour of radio overlapping and thus impacts performance of data and safety message communication in Vehicular Ad hoc Networks (VANETs). In this paper, we propose a novel density model for urban traffic systems and employ this model for the purpose of spatial-temporal analysis of radio overlapping. To model traffic density, we consider a signalized junction and road segments linked to that junction as basic building blocks of urban traffic systems. The density model enables us to derive a framework to explain trends and critical regions of radio overlapping corresponding to VANET scenarios targeted for urban transportation systems, which cannot be derived from uniform density models widely used in existing literature. We apply the derived radio overlapping model to study channel load associated with periodic beaconing, a fundamental mechanism for safety message communication in VANETs. This study also provides a generic analytical framework to investigate other performance aspects of data and safety message communication in VANETs. Our experimental results using the proposed realistic density model demonstrate the need for an adaptive mechanism to adjust transmission power and data rate to reduce channel loads associated with dense traffic conditions. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
[Host publication title missing]
pages
8 pages
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
Local Computer Networks
external identifiers
  • Scopus:84856137812
ISBN
978-1-61284-926-3
DOI
10.1109/LCN.2011.6115563
language
English
LU publication?
no
id
d640140a-87d0-4a71-9f64-10917168ee16 (old id 8056598)
date added to LUP
2015-10-19 11:47:30
date last changed
2016-10-13 04:50:39
@misc{d640140a-87d0-4a71-9f64-10917168ee16,
  abstract     = {Vehicular traffic density is a key factor in determining the behaviour of radio overlapping and thus impacts performance of data and safety message communication in Vehicular Ad hoc Networks (VANETs). In this paper, we propose a novel density model for urban traffic systems and employ this model for the purpose of spatial-temporal analysis of radio overlapping. To model traffic density, we consider a signalized junction and road segments linked to that junction as basic building blocks of urban traffic systems. The density model enables us to derive a framework to explain trends and critical regions of radio overlapping corresponding to VANET scenarios targeted for urban transportation systems, which cannot be derived from uniform density models widely used in existing literature. We apply the derived radio overlapping model to study channel load associated with periodic beaconing, a fundamental mechanism for safety message communication in VANETs. This study also provides a generic analytical framework to investigate other performance aspects of data and safety message communication in VANETs. Our experimental results using the proposed realistic density model demonstrate the need for an adaptive mechanism to adjust transmission power and data rate to reduce channel loads associated with dense traffic conditions.},
  author       = {Bastani, Saeed and Landfeldt, Björn and Libman, Lavy},
  isbn         = {978-1-61284-926-3},
  language     = {eng},
  pages        = {85--92},
  publisher    = {ARRAY(0x7ee9b10)},
  series       = {[Host publication title missing]},
  title        = {A traffic density model for radio overlapping in urban Vehicular Ad hoc Networks},
  url          = {http://dx.doi.org/10.1109/LCN.2011.6115563},
  year         = {2011},
}