Abstract

We study position-based and geocast routing protocols, which are two categories of Vehicular Ad-hoc Network (VANETs) routing protocols based on the information of position and location respectively. Two scenarios for position-based routing are discussed - the highway scenario and the city scenario. We also study geocast routing protocols that are based on flooding by defining the forwarding zone. Forwarding zone is the region where the destination node is located. The advantages and challenges for these position-based and geocast routing protocols are also discussed followed by a discussion on the suitability of the position-based protocols for the highway and city scenarios.

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