Abstract
With the evolution of communication technique, international mobile telecommunication (IMT) indicates that 5G services will be broadly deployed and be popular in 2020. It is imperative to tackle the challenges of high-mobility devices and dynamic communication demands in the real world. Vehicle-to-everything (V2X) is one of the most important parts; hence, approaches to achieve higher communication quality and better spectrum utilization in V2X have become important issues. Presently, it is a common practice to group the users in vehicle-to-vehicle (V2V) communication based on device-to-device (D2D) techniques. In this paper, we consider the handover of groups of moving vehicles. To address the mobility problem, we assign three types of user equipments (UEs), i.e., the main leader, a sub-leader, and followers, in a group with different functions for different roles. The simulation result shows that our proposed group-based mobility management mechanism can decrease the handover failure ratio as well as increase V2V service continuity.
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