2007.04.10 | Lars Michael Kristensen

Local Maximum Avoidance with Correlated Street Blocking for Map-based Geographic Routing in VANETs

Geographic routing is known to be a scalable and robust routingstrategy for Vehicular Ad Hoc Networks (VANETs). However,VANETs with constrained mobility and frequently encountered radio obstacles would often result in geographic routing to enter into local maximum, which in turn degrades its routing performance. In this work, we investigate different schemes for geographic routing to recover from local maximum in a city environment. We also proposed a new scheme thatcan enable the nodes to avoid entering into local maximum.Through a comparative study of three geographic routing protocols, the proposed avoidance scheme is found to show significantly better success rate and efficiency of data delivery while maintaining reasonable end-to-end delay.

Presenter: Boon-Chong Seet, School of Computer Engineering, Nanyang Technological University, Singapore

Host: Lars M. Kristensen