Topology control and routing in ad hoc networks: a survey
ACM SIGACT News
Saturation throughput analysis of error-prone 802.11 wireless networks: Research Articles
Wireless Communications & Mobile Computing - RRM for Next-Generation Wireless and Mobile Communication Systems
Cooperative collision warning using dedicated short range wireless communications
Proceedings of the 3rd international workshop on Vehicular ad hoc networks
Proceedings of the 3rd international workshop on Vehicular ad hoc networks
Proceedings of the 9th ACM international symposium on Modeling analysis and simulation of wireless and mobile systems
Estimation of a successful beacon reception probability in vehicular ad-hoc networks
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
A traffic density model for radio overlapping in urban Vehicular Ad hoc Networks
LCN '11 Proceedings of the 2011 IEEE 36th Conference on Local Computer Networks
Mobility models for vehicular ad hoc networks: a survey and taxonomy
IEEE Communications Surveys & Tutorials
Performance analysis of the IEEE 802.11 distributed coordination function
IEEE Journal on Selected Areas in Communications
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Road safety is one of the most important emerging applications envisioned for Vehicular Ad hoc Networks (VANETs). Generally, such applications involve the broadcast of safety messages, consisting of beacons transmitting vehicles' state (e.g. position and velocity) with a regular period, as well as emergency messages warning about unexpected critical events. From the perspective of safety, the application performance depends foremost on two metrics: for the event-driven warning messages, the probability of message reception; and for periodic messages, the variability of the inter-reception time (IRT), which ultimately determines the freshness of the information received by the driver. In this paper, we develop an analytical model to compute the above metrics in an urban traffic scenario. Focusing on a road segment linked to a signalized junction as a basic building block of urban traffic systems, we apply a novel road traffic density model to investigate the dynamics of the reliability metrics and characterize the region(s) on the road segment according to the achieved safety level. Our numerical study shows that in broadcast mode, the hidden terminal effect is the driving factor determining the reliability of transmissions. Furthermore, the impact of hidden terminals has the greatest effect in road sections where vehicles have high velocity, leading to the poorest performance in regions where reliable reception is needed the most in order to minimize the risk of accidents.