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LOUVRE: Landmark Overlays for Urban Vehicular Routing Environments
Autor: K. Lee, M. Le, J. Härri, M. Gerla Links:
Quelle: Proceedings of the 2nd IEEE International Symposium on Wireless Vehicular Communications (WiVeC'08), Calgary, Canada, September 2008.
In this paper, we introduce a routing solution called “Landmark Overlays for Urban Vehicular Routing Environments” (LOUVRE), an approach that efficiently builds a landmark overlay network on top of an urban topology. We define urban junctions as overlay nodes and create an overlay link if and only if the traffic density of the underlying network guarantees the multi-hop vehicular routing between the two overlay nodes. LOUVRE contains a distributed traffic density estimation scheme which is used to evaluate the existence of an overlay link. Then, efficient routing is performed on the overlay network, guaranteeing a correct delivery of each packet. We evaluate LOUVRE against the benchmark routing protocols GPSR and GPCR and show that LOUVRE is on average 20% higher in packet delivery ratio.