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Obtaining high quality sensor information is critical in vehicular emergencies. However, existing standards such as IEEE 802.11p/DSRC and LTE-A cannot support either the required data rates or the latency requirements. One solution to this problem is for municipalities to invest in dedicated base stations to ensure that drivers have the information they need to make safe decisions in or near accidents...
A novel hybrid environment-based approach for modeling the vehicular communication channel is developed in this study. It is a combination of a deterministic ray-launching algorithm (PIROPA) to model the Large-Scale parameters, and a stochastic model, to obtain the Small-Scale parameters. This hybrid channel model is site-dependent, i.e., the propagation parameters of the channel are obtained based...
Among the safety-related applications of vehicular ad hoc networks (VANETs), the Cooperative/Chain Collision Avoidance (CCA) techniques have received special attention in recent years. With CCA systems a fast dissemination of warning messages to the vehicles in the platoon enables them to promptly react in emergency situations. In this way the number of car accidents and the associated damage to drivers...
Improvement of traffic safety by cooperative vehicular applications is one of the most promising benefits of vehicular ad hoc networks (VANETs). However, to properly develop such applications, the influence of different driving parameters on the event of vehicle collision must be assessed at an early design stage. In this paper, we derive a stochastic model for the number of accidents in a platoon...
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