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Published Articles >> Table of Contents >> Abstract
32nd IEEE Conference on Local Computer Networks (LCN 2007)
pp. 635-642
Node Connectivity in Vehicular Ad Hoc Networks with Structured Mobility
Ivan W.H. Ho, Imperial College London, UK
Kin K. Leung, Imperial College London, UK
John W. Polak, Imperial College London, UK
Rahul Mangharam, Carnegie Mellon University, USA
Full Article Text:
 
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/LCN.2007.109
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| Abstract |
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Vehicular Ad hoc NETworks (VANETs) is a
subclass of Mobile Ad hoc NETworks (MANETs).
However, automotive ad hoc networks will behave in
fundamentally different ways than the predominated models
in MANET research. Driver behaviour, mobility constraints
and high speeds create unique characteristics in the network.
All of these constraints have implications on the VANET
architecture at the physical, link, network, and application
layers. To facilitate the cross-layer designs for VANETs,
understanding of the relationship between mobility and
network connectivity is of paramount importance. In this
paper, we focus on studying transport systems with
structured mobility (e.g., bus systems), which have unique
characteristics on the road such as fixed routes that have
never been explored in previous work. The main
contributions of this paper are three-fold: 1) we provide an
analytical framework including the design requirements of
the mobility model for realistic vehicular network studies,
and metrics for evaluating node connectivity in vehicular
networks; 2) we demonstrate, through simulation, the
impacts of marco- and micro-mobility models, and various
transport elements on network connectivity; and 3) we show
that multi-hop paths perform dramatically poorer than
single-hop links in vehicular networks. Specifically, twohop
and three-hop (communication) paths can only
respectively achieve less than 27% and 13% of the average
duration of single-hop links. Such kind of knowledge of the
performance of multi-hop transmission will be significant
for the studies of routing algorithm and other networking
functions in vehicular networks.
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 Additional Information
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Index Terms- Vehicular Ad Hoc Networks, Mobility, Node
Connectivity.
Citation:
Ivan W.H. Ho, Kin K. Leung, John W. Polak, Rahul Mangharam,
"Node Connectivity in Vehicular Ad Hoc Networks with Structured Mobility,"
lcn,
pp. 635-642,
32nd IEEE Conference on Local Computer Networks (LCN 2007),
2007
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