Isolation probability of obstacle-based highway vehicular ad hoc networks

Over the past decades, the communication performance of vehicular ad hoc networks (VANETs) has attracted wide attentions, especially for the highway scenarios. A great amount of work focuses on the connectivity performance, which can be regarded as a fundamental property for the system design of VANETs. Most of the literature studies a great many metrics of connectivity performance such as the probability distribution of cluster size and node isolation probability under some simple channel models, i.e. the unit disk model and lognormal shadowing model. While the connectivity performance has been widely analyzed under the simple assumptions of wireless channel, there is still a lack of accurate connectivity analysis under more realistic channel models. It is meaningful to evaluate the connectivity performance such as the isolation probability under a realistic measurement-based path loss model which presents the effects of moving obstructions on the wireless radio propagation environment in the highway scenarios.