Investigation of greedy forwarding strategies for three dimensional vehicular ADHOC networks

This paper emphasizes on importance of the routing protocol compatibility with three-dimensional road scenarios like viaducts, flyovers & road ramps. To highlight the impact of compatibility issue we analyze performance variation of greedy forwarding techniques designed to work with 2D co-ordinates and 3D co-ordinates. In this paper we mention these strategies as 2D greedy forwarding and 3D greedy forwarding. In the end we conduct the comparison between performance of 2D greedy algorithm and 3D greedy algorithm on NS2 platform and we present the result in graphical format. Results shows that performance of 3D greedy forwarding technique is superior to 2D forwarding technique. 3D greedy forwarding is more suitable with three-dimensional road structures than traditional greedy forwarding working with 2D co-ordinates.