Delay-aware Transmission Range Control for VANETs

End-to-end delay is critical for the real-time safety message delivery in Vehicular Ad Hoc Networks (VANETs). In this paper, we present an analytical model to evaluate the impact of transmission range on the end-to-end delay in 802.11p-based VANETs. Compared with the previous works, our model derives a concise expression of the transmission delay in saturated networks, and obtains the service rate of non-saturated networks with novel methodology. To the best of our knowledge, it is the first complete analytical model that reveals the significant end-to-end delay difference between saturation and non-saturation cases.