GeoVanet: A Routing Protocol for Query Processing in Vehicular Networks.
Résumé
In a vehicular ad hoc network (VANET), cars can exchange infor-
mation by using short-range wireless communications. Along with the
opportunities oered by vehicular networks, a number of challenges also
arise. In particular, most works so far have focused on a push model,
where potentially useful data are pushed towards vehicles. The use of
pull models, that would allow users to send queries to a set of cars in
order to nd the desired information, has not been studied in depth.
The main challenge for pull models is the diculty to route the dif-
ferent results towards the query originator in a highly dynamic network
where the nodes move very quickly. To solve this issue, we propose Geo-
Vanet, an anonymous and non-intrusive geographic routing protocol which
ensures that the sender of a query can get a consistent answer. Our goal
is to ensure that the user will be able to retrieve the query results within
a bounded time. To prove the eectiveness of GeoVanet, an extensive
experimental evaluation has been performed, that proves the interest of
the proposal for both rural and urban areas. It shows that up to 80% of
the available query results are delivered to the user.
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