Abstract
Vehicular fog computing (VFC) complements vehicular cloud computing as a promising solution for accommodating the surge of mobile traffic and reducing latency. This paper considers vehicular fog service (VFS) provided by a vehicular fog (VF), which is formed on-the-fly by integrating computing and storage resources of parked vehicles. VF dynamicity, due to vehicles’ random arrivals and departures, poses a number of challenges for reliable and secure VFS provision to client vehicles. We propose a novel mechanism which consists of a VF construction method and a VFS access method to ensure VFS reliability and security without sacrificing performance. The reliability and security of VFS under our mechanism are discussed in detail. Moreover, we investigate the impact of the proposed mechanism on VF throughput and show that the mechanism is lightweight enough to be used in the latency-sensitive VFC.
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