Content dissemination in vehicular social networks: taxonomy and user satisfaction

Social networking applications have gained huge popularity. With the widespread use of smart devices (e.g., on-board units, smartphones), these social networks are increasingly going mobile. As a result, a new trend of networking has emerged, referred to as vehicular social networking (VSN), which combines the wireless communications between vehicles with their social relationships. In a broader view, VSNs are social networks formed on roadways by users who have social relationships, interactions, and common interests. The exploitation of vehicular users´ social properties provides better networking and social support to innovative applications and services. This article overviews recent achievements in VSN by providing an organized view of existing approaches. Its contribution lies in a taxonomy for content dissemination approaches in the context of VSN. Also, a framework is outlined to tackle a major new challenge: supporting user satisfaction. Finally, this article emphasizes open research and future trends.