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Interference-Aware Geocasting for VANET

Tse, Quincy and Landfeldt, Björn LU (2012) VANET from Theory to Practice In WoWMoM
Abstract
With the introduction of standards such as DSRC

and WAVE, vehicular ad hoc networks (VANET) are being considered

as candidates to improve road safety. Safety applications

developed on top of VANET enable vehicle and driver improved

awareness of the road situation through vehicles sharing their

status and knowledge of the road conditions. In order for these

systems to operate, they depend on reliable communication. To

overcome fading, shadowing and other effects that cause packet

loss, such applications commonly use retransmission schemes to

improve packet delivery. However, the wireless channels used for

these applications are bandwidth constrained,... (More)
With the introduction of standards such as DSRC

and WAVE, vehicular ad hoc networks (VANET) are being considered

as candidates to improve road safety. Safety applications

developed on top of VANET enable vehicle and driver improved

awareness of the road situation through vehicles sharing their

status and knowledge of the road conditions. In order for these

systems to operate, they depend on reliable communication. To

overcome fading, shadowing and other effects that cause packet

loss, such applications commonly use retransmission schemes to

improve packet delivery. However, the wireless channels used for

these applications are bandwidth constrained, and retransmission

can cause interference which in turn will degrade the reliability

of the communication channel. Therefore, it is necessary to find

a strategy that balances retransmission with channel occupancy

for optimal reliability.

In this paper, we present a cooperative retransmission algorithm

that overcomes shadowing caused by blocking objects such

as heavy vehicles in order to combat the resulting unreliability,

whilst controlling the interference caused by retransmissions.

The proposed algorithm weighs up the additional area a node

can cover, with the amount of interference a retransmission by

the same node would cause. We evaluate the performance of

the algorithm in urban scenarios using the NS-3 simulator, and

find that the proposed algorithm is effective in overcoming the

negative effects of shadows caused by blocking objects. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
WoWMoM
editor
Danoy, Gregoire; Ruiz, Patricia; Schleich, Julien and Seredynski, Marcin
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
VANET from Theory to Practice
external identifiers
  • Scopus:84866411759
language
English
LU publication?
yes
id
00d4da3d-e580-42d8-81cc-6a97946de629 (old id 3128362)
alternative location
http://www.nicta.com.au/pub?doc=5680
date added to LUP
2012-10-11 11:31:04
date last changed
2016-10-13 04:49:46
@misc{00d4da3d-e580-42d8-81cc-6a97946de629,
  abstract     = {With the introduction of standards such as DSRC<br/><br>
and WAVE, vehicular ad hoc networks (VANET) are being considered<br/><br>
as candidates to improve road safety. Safety applications<br/><br>
developed on top of VANET enable vehicle and driver improved<br/><br>
awareness of the road situation through vehicles sharing their<br/><br>
status and knowledge of the road conditions. In order for these<br/><br>
systems to operate, they depend on reliable communication. To<br/><br>
overcome fading, shadowing and other effects that cause packet<br/><br>
loss, such applications commonly use retransmission schemes to<br/><br>
improve packet delivery. However, the wireless channels used for<br/><br>
these applications are bandwidth constrained, and retransmission<br/><br>
can cause interference which in turn will degrade the reliability<br/><br>
of the communication channel. Therefore, it is necessary to find<br/><br>
a strategy that balances retransmission with channel occupancy<br/><br>
for optimal reliability.<br/><br>
In this paper, we present a cooperative retransmission algorithm<br/><br>
that overcomes shadowing caused by blocking objects such<br/><br>
as heavy vehicles in order to combat the resulting unreliability,<br/><br>
whilst controlling the interference caused by retransmissions.<br/><br>
The proposed algorithm weighs up the additional area a node<br/><br>
can cover, with the amount of interference a retransmission by<br/><br>
the same node would cause. We evaluate the performance of<br/><br>
the algorithm in urban scenarios using the NS-3 simulator, and<br/><br>
find that the proposed algorithm is effective in overcoming the<br/><br>
negative effects of shadows caused by blocking objects.},
  author       = {Tse, Quincy and Landfeldt, Björn},
  editor       = {Danoy, Gregoire and Ruiz, Patricia and Schleich, Julien and Seredynski, Marcin},
  language     = {eng},
  publisher    = {ARRAY(0x8837410)},
  series       = {WoWMoM},
  title        = {Interference-Aware Geocasting for VANET},
  year         = {2012},
}