VANET services are reviewed and classified. In the first part of this chapter, emerging VANETs are shown to be unique in the broad family of MANETs (Mobile Ad Hoc Networks). Vehicular networks (VANETs) have several elements in common with ad hoc mesh networks, but also have unique new requirements including high mobility, rapidly changing topology, multiple usage modes (vehicle-to-infrastructure and vehicle-to-vehicle ), and the central importance of geo-location. There are more than 600 million vehicles worldwide and these will be networked to achieve improvements to safety, traffic management, navigation, and user convenience.
Vehicular networks are expected to be one of the major new application areas for wireless and Internet services.
