Efficient Gateway Discovery Algorithms for Delay-Tolerant and Delay-Constrained Data Traffic in Vehicular Ad-Hoc Networks

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Executive Summary

The authors focus on the problem of efficient dissemination of available gateways information throughout a Vehicular Ad-hoc NETwork (VANET). Contrary to previous works, they also consider how the gateway discovery protocol affects user data flows that are routed to the infrastructure network. The cases of both delay-tolerant and delay-constrained user traffic are studied. They propose two schemes targeted at reliable, efficient and timely dissemination of gateway advertisement messages that are suitable for each of the aforementioned traffic types. By means of a thorough and realistic simulation study, they compare their approaches with different configurations of the only multi-hop solution focused on VANET that they found in the literature.

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