DTN Routing Protocols for VANETs: Issues and Approaches

Delay Tolerant Networks (DTNs) are a class of networks that enable communication where connectivity issues like sparse connectivity, intermittent connectivity, high latency, long delay, high error rates, asymmetric data rate, and even no end-to-end connectivity exist. The DTN architecture model has been applied for vehicular Networks called Vehicular Delay Tolerant Networks (VDTN). In these networks vehicles use a message relaying service by their mobility in the network and collect messages from source nodes. In this paper, we will review the routing protocol in delay tolerant networks and compare the routing protocols that have been proposed specially for Vehicular Delay Tolerant Networks.

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