A Multi-Layered Reliability Approach in Vehicular Ad-Hoc Networks

Vehicular ad-hoc networks (VANETs) have been an important part of intelligent transport systems (ITS). Developing a reliable network for vehicle-to-vehicle communication is a crucial part of network deployment. In the present paper, the authors are discussing a layered approach towards reliability of VANETs. This paper will consider different layers of the dedicated short-range communications (DSRC) protocol stack and discuss key reliability indicators in each layer. This layered approach towards computing reliability results in more practical probability calculations and improves the minimum probability of reliability achievable by the VANETs. The authors discuss about different techniques to increase the reliability of VANETs. In the future works, the goal is to calculate probability density and distribution functions of reliability at each layer and derive combined reliability and availability of a given vehicular ad-hoc network (VANET).