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Sensors 2014, 14(2), 2199-2224; doi:10.3390/s140202199

A Multimetric, Map-Aware Routing Protocol for VANETs in Urban Areas

1,2,* , 1
1 Department of Telematic Engineering, Universitat Politècnica de Catalunya (UPC), C/ Jordi Girona 1-3, Barcelona 08034, Spain 2 Faculty of Informatics, Autonomic University of Sinaloa (UAS), De los Deportes Avenue and Leonismo Internacional s/n, Mazatlan 82107, Mexico
* Author to whom correspondence should be addressed.
Received: 3 December 2013 / Revised: 4 January 2014 / Accepted: 8 January 2014 / Published: 28 January 2014
(This article belongs to the Section Sensor Networks)
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In recent years, the general interest in routing for vehicular ad hoc networks (VANETs) has increased notably. Many proposals have been presented to improve the behavior of the routing decisions in these very changeable networks. In this paper, we propose a new routing protocol for VANETs that uses four different metrics. which are the distance to destination, the vehicles’ density, the vehicles’ trajectory and the available bandwidth, making use of the information retrieved by the sensors of the vehicle, in order to make forwarding decisions, minimizing packet losses and packet delay. Through simulation, we compare our proposal to other protocols, such as AODV (Ad hoc On-Demand Distance Vector), GPSR (Greedy Perimeter Stateless Routing), I-GPSR (Improvement GPSR) and to our previous proposal, GBSR-B (Greedy Buffer Stateless Routing Building-aware). Besides, we present a performance evaluation of the individual importance of each metric to make forwarding decisions. Experimental results show that our proposed forwarding decision outperforms existing solutions in terms of packet delivery.
Keywords: vehicular ad hoc networks; multi-metric forwarding decisions; geographic routing protocol vehicular ad hoc networks; multi-metric forwarding decisions; geographic routing protocol
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Tripp-Barba, C.; Urquiza-Aguiar, L.; Igartua, M.A.; Rebollo-Monedero, D.; de la Cruz Llopis, L.J.; Mezher, A.M.; Aguilar-Calderón, J.A. A Multimetric, Map-Aware Routing Protocol for VANETs in Urban Areas. Sensors 2014, 14, 2199-2224.

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