Vehicular Ad Hoc Networks: A New Challenge for Localization-Based Systems

A new kind of ad hoc network is hitting the streets: Vehicular Ad Hoc Networks (VANets). In these networks, vehicles communicate with each other and possibly with a roadside infrastructure to provide a long list of applications varying from transit safety to driver assistance and Internet access. In these networks, knowledge of the real-time position of nodes is an assumption made by most protocols, algorithms, and applications. This is a very reasonable assumption, since GPS receivers can be installed easily in vehicles, a number of which already comes with this technology. But as VANets advance into critical areas and become more dependent on localization systems, GPS is starting to show some undesired problems such as not always being available or not being robust enough for some applications. For this reason, a number of other localization techniques such as Dead Reckoning, Cellular Localization, and Image/Video Localization has been used in VANets to overcome GPS limitations. A c...

• Type: Journal
• Year: 2008
• Where: COMCOM
• Authors: Azzedine Boukerche, Horacio A. B. F. de Oliveira, Eduardo Freire Nakamura, Antonio Alfredo Ferreira Loureiro
• Keywords: Ad Hoc Networks, COMCOM 2008, Data Fusion Techniques, Localization Techniques