Reliable vehicular broadcast using 5G device-to-device communication

With the ever-increasing call for connected vehicles and intelligent transportation applications, vehicular networking have been of significant focus recently. Demands for highly reliable communication challenge the current underlying technology and transformations in vehicular communication are discussed. The uMTC service of the next generation mobile networking system (i.e. 5G), which is based on D2D broadcast communication, is a promising enabler for broadcast-based C-ITS applications with strict reliability requirements. In this paper, we look at the resource management aspect of D2D communication technology to contribute to vehicular broadcasting with a higher level of reliability. In this regard, we propose a resource allocation scheme which is adaptive to the varying state of a vehicular network. With focus on the network load and topology as the main criteria, our scheme aims for management of the system capacity and interference situations, in order to meet the performance requirement of D2D vehicular broadcast, in terms of reliability. The results confirm the effectiveness of our approach and provide insight on the optimal network design regarding the allowed data rate and resource assignment according to application requirements.