The broadcast storm problem in a mobile ad hoc network
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
Multicast tree construction and flooding in wireless ad hoc networks
Proceedings of the 3rd ACM international workshop on Modeling, analysis and simulation of wireless and mobile systems
Comparison of broadcasting techniques for mobile ad hoc networks
Proceedings of the 3rd ACM international symposium on Mobile ad hoc networking & computing
On the reduction of broadcast redundancy in mobile ad hoc networks
MobiHoc '00 Proceedings of the 1st ACM international symposium on Mobile ad hoc networking & computing
Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Wireless Communications
Urban multi-hop broadcast protocol for inter-vehicle communication systems
Proceedings of the 1st ACM international workshop on Vehicular ad hoc networks
DV-CAST: a distributed vehicular broadcast protocol for vehicular ad hoc networks
IEEE Wireless Communications
A directional data dissemination protocol for vehicular environments
Computer Communications
Broadcast storm mitigation techniques in vehicular ad hoc networks
IEEE Wireless Communications
A tutorial survey on vehicular ad hoc networks
IEEE Communications Magazine
A Content-Based Dissemination Protocol for VANETs: Exploiting the Encounter Probability
IEEE Transactions on Intelligent Transportation Systems
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Vehicular Ad-hoc Networks (VANETs) enable the timely broadcast dissemination of event-driven messages to interested vehicles. However, when dealing with broadcast communication, suppression techniques must be designed to prevent the so-called broadcast storm problem. Numerous suppression schemes aim to reduce broadcast redundancy by assigning vehicles to different delay values, i.e., time slots, that are inversely proportional to their distance to the sender. In this way, only the farthest vehicles would rebroadcast, thereby allowing for quick data dissemination. Despite many efforts, current delay-based schemes still suffer from high levels of contention and collision when the number of vehicles rebroadcasting nearly simultaneously is high in dense networks. Even choosing appropriate values for the total number of time slots does not prevent situations where simply no vehicle is assigned to the earliest time slot, what may result in high end-to-end delay. In this paper, we tackle such scalability issues with a scheme that controls with precision the density of vehicles within each time slot. To reach this goal, we exploit the presence of beacons, periodic messages meant to provide cooperative awareness in safety applications. Simulations results show that our protocol outperforms existing delay-based schemes and is able to disseminate data messages in a scalable, timely, and robust manner.