An optimal 1D vehicular accidentwarning algorithm for realistic scenarios

Roccetti, Marco; Marfia, Gustavo; Amoroso, Alessandro

doi:10.1109/iscc.2010.5546806

Cited by 18 publications

(16 citation statements)

References 6 publications

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“…Again, to be concise we do not provide here additional details on this subject. The interested reader can refer to the following paper [8]. Rather, it is more interesting to report here that such kind of broadcast mechanism may be very effective in spreading traffic information at a high speed.…”

Section: Efficient Information Spreading: a Broadcast Approachmentioning

confidence: 94%

“…We also need a communication protocol that efficiently distributes traffic information throughout a platoon of vehicles in a realistic wireless propagation setting. An algorithm that fits such requirements exists and works as follows [8]. Traffic congestion alerts are broadcast throughout a vehicular network asking, at each hop, to the farthest spanning relay, the relay that can reach the farthest vehicle in a given direction, to retransmit it.…”

Section: Introductionmentioning

confidence: 99%

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Modeling and Experimenting with Vehicular Congestion for Distributed Advanced Traveler Information Systems

Roccetti

Marfia

2010

Computer Performance Engineering

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Abstract. Advanced Traveler Information Systems, which have for long been regarded as one of the most promising future applications of wireless vehicular networks for use in the field of Intelligent Transportation Systems (ITS), are effectively becoming part of today's reality. Many drivers already access the information provided by such systems, for example checking for the state of the streets along a given route or reading traffic jam alerts on the displays of smart-phones or Personal Navigation Devices (PNDs). Based on such information, drivers, or their PNDs, select the best paths to reach their destinations. Clearly, in order to be effective, such systems are required to reliably estimate and forecast vehicular congestion states. Moreover, they should also be capable of efficiently utilizing the wireless channel resources, as the amount of information that may be exchanged by such systems in dense urban areas grows with the number of services supported by the onboard devices and the amount of vehicles that install them. To answer these challenges, we here discuss how a distributed ATIS can: a) implement an effective vehicular congestion detection and forecasting model, and, b) efficiently disseminate traffic information. The advantage of distributing an ATIS is that each vehicle can compute and redistribute accurate vehicular congestion information very rapidly, with little overhead and without resorting to a central entity. In order to validate our approach, we present the outcomes of a real world experimentation, as well as of multiple simulations.

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Section: Efficient Information Spreading: a Broadcast Approachmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Modeling and Experimenting with Vehicular Congestion for Distributed Advanced Traveler Information Systems

Roccetti

Marfia

2010

Computer Performance Engineering

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“…Under the same realistic assumptions, an additional method that effectively minimizes the number of hops has been proposed in [8]. To achieve such result, the latter scheme chooses as a relay, among all the vehicles that receive an alert message, the vehicle whose re-transmission will span farthest away in space (i.e., the farthest spanning relay).…”

Section: Challenges In Highway Scenariosmentioning

confidence: 99%

“…The purpose of this paper is the comparison of two among the most effective V2V algorithms that work under realistic assumptions [2,8].The first one adopts the strategy of propagating alert messages through the farthest relay, while the second chooses the farthest spanning relay. To clearly understand the performance differences, in terms of propagation delay, that these two choices entail, we compared both protocols under the same experimental conditions in wide set of simulations and different propagation scenarios.…”

Section: Introductionmentioning

confidence: 99%

On the Comparison of Two Vehicular Safety Systems in Realistic Highway Scenarios

Amoroso¹,

Marfia²,

Roccetti³

et al. 2011

JTTs

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The application of wireless VANET technology to accident warning systems is gaining an increasing interest. These systems can significantly increase the safety of daily driving and are based on a technology that is steadily becoming mature. We present an experimental comparison between two effective approaches that cope with realistic scenarios. Both rapidly broadcast alert messages throughout platoons of vehicles, and are based on wireless vehicle-to-vehicle (V2V) communications. However, with one approach an alert message propagates through the farthest relay at each hop, whereas with the other it propagatesusing the farthest spanning relay (i.e., the relay that can retransmit farthest away an alert message). With this study we will see retransmitting through the farthest spanning relay at each hop can improve the performance by a factor of two in terms of propagation delay, in comparison to choosing the farthest relay

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“…For this reasons, many researchers are looking today for innovative solutions offering a carrier independent, locationbased, and cheaper than 3G data distribution. Different types of potential networking environments are investigated, including infrastructure connected networks like cellular networks, mesh networks, vehicular networks, and even entirely disconnected networks of stand-alone mobile devices [3]- [7].…”

Section: Introductionmentioning

confidence: 99%

A solution for mobile DTN in a real urban scenario

Bujari

Palazzi

Maggiorini

et al. 2012

2012 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)

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The growing number of mobile devices equipped with a wireless interface and the end-user trend to shift toward wireless technology is opening new possibilities for networking. In particular, opportunistic communication embodies a feasible solution for environments with scarce or costly infrastructurebased connectivity. In this context we provide a delay-tolerant solution that provides service opportunistic connectivity. Our approach follows the Delay/Disruption Tolerant Network (DTN) paradigm by implementing a store-carry-and-forward communication model among mobile users and buses, the latter embodying carrier entities. A user can delegate the carrier a request which involves Internet access. This request is then forwarded to the bus station's Internet Gateway (IG) in an opportunistic fashion, including both data muling and multi-hop transmission through other buses. Once the request is served at the bus station's IG, the result is opportunistically sent back toward the bus line where the user expects the result. In this paper we present our idea and discuss results obtained through simulations in a realistic urban scenario.

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An optimal 1D vehicular accidentwarning algorithm for realistic scenarios

Cited by 18 publications

References 6 publications

Modeling and Experimenting with Vehicular Congestion for Distributed Advanced Traveler Information Systems

Modeling and Experimenting with Vehicular Congestion for Distributed Advanced Traveler Information Systems

On the Comparison of Two Vehicular Safety Systems in Realistic Highway Scenarios

A solution for mobile DTN in a real urban scenario

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