Evaluation of the Greedy Recovery Strategy in VANETs

Routing in Vehicular Ad hoc Network (VANET) plays a vital role data dissemination. Proactive and reactive routing of Mobile ad hoc networks (MANET) does not suit VANET owing to higher mobility. Hence researchers have proposed geographic routing protocols which are location based. They do not depend on routing tables as in MANET. These routing protocols have been classified into: Delay Tolerant (DTN), Non Delay Tolerant (N-DTN) and Hybrid. Most of the routing protocols in N-DTN follow greedy strategy. In scenarios where immediate neighbor towards the destination is not available, greedy mode fails. To overcome this researchers have come up with several recovery strategies. This paper focuses on the performance evaluation of the recovery strategy adopted by the various greedy routing protocols proposed for VANETs.