A novel blockchain for social internet of vehicles in the Era of 5G and Beyond

The Social Internet of Vehicles (SIoV) paradigm is a social network where every vehicle establishes social relationships with others. The IEEE Standards Association develops a number of market relevent standards for for 5G and Beyond. Among these standards, the IEEE P1931.1 standard provides a promising architectural framework for SIoV. In this paper we propose RoofCoin, a blockchain for SIOV based on the IEEE P1931.1 standard. In order to deal with constrains related to Internet of Vehicles, we also provide a novel consensus protocol for RoofCoin, named PoS t (Proof of Stature). In PoS t, the blockchain's miners are selected according to three features: the mining price, the reliability of the connection link between the vehicle and the miner, and the miner's reputation. In order to evaluate the miner's reputation, we introduce a trust model that calculate the miner's stature in the Vehicular Social Network (VSN). Experimental results have shown that the proposed PoS t protocol is efficient even in low coverage zones, where only two trusted miners are discovered.