VANET, Packet forwarding node, Link based
metric, Node based metric
Vehicular Ad-hoc Networks (VANETs) have characteristics such as frequently changing topology, high mobility etc. which poses technical challenges to the task of routing. One of the issues in VANETs is reliability i.e. message must reach destination. For stable and reliable routing, selection of intermediate node or next hop vehicle is very crucial task. In this paper, we have proposed a multi-metric next hop vehicle selection algorithm for geocasting in VANETs. Link and node
based metrics have been identified and used in the proposed algorithm. Mathematical formulation for each of the identified metric are provided. The working of the proposed algorithm has been shown using a case study. The algorithm has been evaluated by empirical study.