Single-hop Packet Delivery Rate in V2V Safety Communications for Worst-case Highway Scenarios

Ensuring maximum data packet delivery rate is crucial in the vehicle-to-vehicle (V2V) safety (broadcast) communication. The highly dynamic topology of vehicles on the road makes it difficult to appropriately quantify different quality of service parameters e.g. packet delivery rate. High packet delivery rate is difficult to achieve in periodic safety communications with broadcast as the default communication mechanism. A handful of transmission power control and beacon generation control methods have been proposed by researchers to enhance packet delivery in V2V communications. These methods however were lacking in the focus on realistic worst-case scenarios. In this paper, optimal combinations of transmission range and beacon generation interval are presented in the context of different packet delivery rates for worst-case scenarios. As such, the effectiveness of this approach was measured through extensive simulations based on the realistic worst-case scenarios on a highway.