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Fair Sharing of Bandwidth in VANETs

Torrent Moreno, M.; Santi, P.; Hartenstein, H.

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 on 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 Proceedingsbeitrag
Jahr 2005
Sprache Englisch
Identifikator ISBN: 1-59593-141-4
KITopen ID: 1000004174
Erschienen in Proceedings of the second ACM International Workshop on Vehicular Ad Hoc Networks (VANET)
Verlag ACM Press, New York (NY)
Seiten 49-58
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