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URN: urn:nbn:de:swb:90-41193

Fair sharing of bandwidth in VANETs

Hartenstein, Hannes


We address the challenge of how to share the limited wireless
channel capacity for the exchange of safety-related information
in a fully deployed vehicular ad hoc network (VANET). In
particular, we study the situation that arises when the number
of nodes sending periodic safety messages is too high in a
specific area. In order to achieve a good performance of
safety-related protocols, we propose to limit the load sent to
the channel using a strict fairness criterion among the nodes. A
formal definition of this problem is presented in terms of a
max-min optimization problem with an extra condition of per-node
maximality. Furthermore, we propose FPAV, a power control
algorithm which finds the optimum transmission range of every
node, and formally prove its validity under idealistic
conditions. Simulations are performed to visualize the result of
FPAV in a couple of road situations. Finally, we discuss the
issues that must be taken into account when implementing FPAV.

Zugehörige Institution(en) am KIT Institut für Telematik (TM)
Publikationstyp Forschungsbericht
Jahr 2005
Sprache Englisch
Identifikator ISSN: 1432-7864
KITopen ID: 1000004119
Verlag Karlsruhe
Serie Interner Bericht. Fakultät für Informatik, Universität Karlsruhe ; 2005,19
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