Improved Key Based Security Framework for Vehicular Ad Hoc Networks
Vehicular Ad hoc NETworks (VANETs) are a subgroup of Mobile Ad hoc NETworks (MANETs) with the distinguishing property that the nodes are vehicles like cars, trucks, buses and motorcycles. This implies that node movement is restricted by factors like road course, encompassing traffic and traffic regulations. Nodes are expected to communicate by means of North American DSRC standard that employs the IEEE 802.11p standard for wireless communication. To allow communication with participants out of radio range, messages have to be forwarded by other nodes (multi-hop communication).