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Fair sharing of bandwidth in VANETs

Published: 02 September 2005 Publication History

Abstract

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.

References

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[2]
Dedicated Short Range Communications Project. http://www.leearmstrong.com/DSRC/DSRCHomeset.htm.
[3]
Internet ITS Consortium. http://www.internetits.org.
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The PReVENT Project. http://www.prevent-ip.org.
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The NOW: Network on Wheels Project. http://www.network-on-wheels.de.
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Dedicated Short Range Communications working group. http://grouper.ieee.org/groups/scc32/dsrc/index.html.
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Federal Communications Commision. FCC 03-324. FCC Report and Order, February 2004.
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      cover image ACM Conferences
      VANET '05: Proceedings of the 2nd ACM international workshop on Vehicular ad hoc networks
      September 2005
      106 pages
      ISBN:1595931414
      DOI:10.1145/1080754
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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      Published: 02 September 2005

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      Author Tags

      1. ad hoc networks
      2. fairness
      3. power control
      4. vehicular safety

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      Vanet05
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      Vanet05: Vehicular Ad-hoc Networks Workshop 2005
      September 2, 2005
      Cologne, Germany

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      Overall Acceptance Rate 26 of 64 submissions, 41%

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