Packet success probabilities for intelligent vehicle highway systems using measured headway distributions

This paper evaluates the packet success probabilities for vehicles sending data to a base station near the motorway. An appropriate statistical model for the distribution of the vehicles on a motorway is investigated using measured data. The measurements were carried out on the A13 motorway in the Netherlands during relatively heavy traffic periods. The measurements were split into three traffic conditions: queuing traffic with low speed, heavy traffic with small average headways and free flowing traffic with larger headways. Six models for the distribution of the distances between the vehicles were considered. For the results presented in this paper the shifted negative exponential distribution was chosen. The success probabilities are calculated using Rician distribution, single slope path loss and capture effect