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
Multipoint Relaying for Flooding Broadcast Messages in Mobile Wireless Networks
HICSS '02 Proceedings of the 35th Annual Hawaii International Conference on System Sciences (HICSS'02)-Volume 9 - Volume 9
Anonymous Gossip: Improving Multicast Reliability in Mobile Ad-Hoc Networks
Anonymous Gossip: Improving Multicast Reliability in Mobile Ad-Hoc Networks
JiST: an efficient approach to simulation using virtual machines: Research Articles
Software—Practice & Experience
Exploring the Energy-Latency Trade-Off for Broadcasts in Energy-Saving Sensor Networks
ICDCS '05 Proceedings of the 25th IEEE International Conference on Distributed Computing Systems
An integrated mobility and traffic model for vehicular wireless networks
Proceedings of the 2nd ACM international workshop on Vehicular ad hoc networks
IEEE/ACM Transactions on Networking (TON)
Secure vehicular communication systems: design and architecture
IEEE Communications Magazine
Communication patterns in VANETs
IEEE Communications Magazine
Progress and challenges in intelligent vehicle area networks
Communications of the ACM
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Inter-vehicular communication envisions many applications to enhance traffic safety. One fundamental communication paradigm used to realize a wide range of such applications is called Geocast, that is, multi-hop broadcast dissemination of messages within a geographically restricted destination region. Because of the safety-related nature of many VANET applications, it is crucial that Geocast protocols ensure dependable dissemination of information. Here, dependability has two aspects. First, a Geocast protocol needs to scale to varying node densities - reliable delivery should be provided both in sparsely connected networks and also in scenarios with high channel load due to high node density. In addition, Geocast needs to be protected against attacks to achieve dependable dissemination of information even in presence of malicious nodes trying to suppress information delivery. In this work, we focus on the goal of Geocast security. We evaluate the impact of several attacks, and, based on these results, we introduce specific countermeasures against the discovered threats. Particularly, we highlight the intrinsic security properties already present in scalability-enhancing mechanisms. Thus, we show how security and scalability complement each other in Geocast protocols. In summary, our focus are lightweight and efficient measures to secure Geocast for usage in VANETs.