Multi-RAT integration in Heterogeneous Vehicular Communication Networks (HVCNets)

The integration of multiple Radio Access Technology (RAT) in vehicular communication has gained interest in recent years. Indeed, a single RAT might be unable to satisfy all the requirements of vehicular communication networks. Particularly with the increasing amount of exchanged messages in vehicular communication networks in addition to the increasing number of connected autonomous vehicles. Although Multi-RAT Heterogeneous Vehicular Communication Networks (HVCNets) can provide increased network capacity to vehicle networks, they face several challenges. For instance, how to integrate multiple technologies that use different PHY and MAC protocols and techniques. Furthermore, how to select the most suitable RAT. This paper presents an in-depth study of what is currently the state of the art in HVCNets as well as RAT selection schemes in such networks.