A Survey of Data Dissemination Schemes in Secure Inter-Vehicle Communications

Vehicular Communication (VC) has received significant attention in Intelligent Transportation Systems (ITSs) over the past decade. These networks are projected to enhance ITS functionality and the driving experience on roads through timely transmission of safety, coordination, and infotainment messages. In order to maximize accuracy and efficiency while decreasing redundant transmissions in VC networks, a number of dissemination algorithms have been developed. However, the VC paradigm has been recently challenged with multiple cyberattacks that threaten to utilize VC to cause chaos on roads and disrupt traffic. This paper provides an overview of in tervehicle communication technologies as well as the most popular distribution methods used over time, broadly divided into methods for timer-, cluster-, probability-, geocast-, and hybrid-based dissemination. It then describes potential cyberattacks on VC and discuss their effectiveness against the different dissemination methods and concludes with recommendations that can confine malicious data to small dissemination regions.