Secure V2V Communications: Performance Impact of Computational Overheads

Safety applications aim to avoid vehicular accidents, by providing advisories to the driver, by using secure broadcast Vehicle-to-Vehicle (V2V) communications. However, any security mechanism used for authenticating broadcast V2V messages, comes with overheads in terms of computation, storage and communications. Further due to the resource-constrained computing platforms used in the automotive domain, these overheads could translate into performance bottlenecks. Prior works related to performance modeling of secure V2V communications do not consider the computational overheads of security, since traditionally packet transmission rather than packet processing is taken to be the bottleneck.