A directional data dissemination protocol for vehicular environments

Schwartz, Ramon S.; Barbosa, Rafael Ramos Regis; Meratnia, Nirvana; Heijenk, Geert; Scholten, Hans

doi:10.1016/j.comcom.2011.03.007

Cited by 113 publications

(93 citation statements)

References 25 publications

(40 reference statements)

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“…The proposal in [21] suggests an optimized slotted 1-persistence scheme for multi-hop communications. As well, the protocol proposes the formation of vehicle clusters that includes vehicles within the transmission range of each other.…”

Section: Related Workmentioning

confidence: 99%

A multi-hop broadcast protocol design for emergency warning notification in highway VANETs

Javed

Ngo

Khan

2014

J Wireless Com Network

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Multi-hop broadcast transmission is used in vehicular ad hoc networks (VANETs) to alert all vehicles within a geographical area of an emergency situation. However, the successful dissemination of multi-hop warning messages beyond the transmission range of a vehicle faces three major issues: (i) the broadcast storm, (ii) the severe interference with the existing periodic single-hop safety messages, and (iii) the hidden nodes. In this paper, we propose an efficient time-slotted multi-hop broadcast protocol that significantly reduces the number of required transmissions, while ensuring a timely and successful delivery of the warning messages. To alleviate the broadcast storm problem, we select only a subset of vehicles on the road to serve as the potential relay nodes. Each of these 'segment leaders' is responsible for forwarding the warning messages arrived in its own road segment. To avoid interfering with the safety messages transmitted periodically, we propose to allocate separate time slots for the warning messages. We also devise a signaling mechanism that ensures the reliable delivery of these multi-hop messages. Simulation results confirm that the developed protocol substantially outperforms existing schemes in terms of the number of required multi-hop transmissions and the dissemination delay. At the same time, the proposed solution maintains a high reception rate and low end-to-end delay for the single-hop safety messages.

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Section: Related Workmentioning

confidence: 99%

A multi-hop broadcast protocol design for emergency warning notification in highway VANETs

Javed

Ngo

Khan

2014

J Wireless Com Network

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“…The UV-CAST is a protocol that specifically addresses urban scenarios with zero infrastructure support [7]. Finally, SRD is a protocol that we previously designed for highway scenarios in [5]. Just as with DV-CAST, SRD combines both a store-carry-forward approach and suppression technique to tackle disconnected and dense networks, respectively.…”

Section: Related Workmentioning

confidence: 99%

“…A few works apply the store-carry-forward mechanism specifically for VANETs [5][6][7]25,26]. In [6], the DV-CAST http://jwcn.eurasipjournals.…”

Section: Related Workmentioning

confidence: 99%

“…To this end, we borrow concepts first introduced in our method for a single directional dissemination presented in [5].…”

Section: Introductionmentioning

confidence: 99%

“…• A comprehensive simulation campaign with a direct comparison against three state-of-the-art protocols, namely, distributed vehicular broadcast (DV-CAST) [6], S imple and R obust D issemination (SRD) [5], and urban vehicular broadcast (UV-CAST) [7], under both realistic highway and urban scenarios. In particular, we take a real map fragment from the Manhattan area in New York City, NY, USA, including the shape of buildings that are used to model radio obstacles.…”

Section: Introductionmentioning

confidence: 99%

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A scalable data dissemination protocol for both highway and urban vehicular environments

Schwartz

Scholten

Havinga

2013

J Wireless Com Network

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Vehicular ad hoc networks (VANETs) enable the timely broadcast dissemination of event-driven messages to interested vehicles. Especially when dealing with broadcast communication, data dissemination protocols must achieve a high degree of scalability due to frequent deviations in the network density. In dense networks, suppression techniques are designed to prevent the so-called broadcast storm problem. In sparse networks, protocols incorporate store-carry-forward mechanisms to take advantage of the mobility of vehicles to store and relay messages until a new opportunity for dissemination emerges. Despite numerous efforts, most related works focus on either highway or urban scenarios, but not both. Highways are mostly addressed with a single directional dissemination. For urban scenarios, protocols mostly concentrate on either using infrastructure or developing methods for selecting vehicles to perform the store-carry-forward task. In both cases, dense networks are dealt with suppression techniques that are not optimal for multi-directional dissemination. To fill this gap, we present an infrastructure-less protocol that combines a generalized time slot scheme based on directional sectors and a store-carry-forward algorithm to support multi-directional data dissemination. By means of simulations, we show that our protocol scales properly in various network densities in both realistic highway and urban scenarios. Most importantly, it outperforms state-of-the-art protocols in terms of delivery ratio, end-to-end delay, and number of transmissions. Compared to these solutions, our protocol presents up to seven times lower number of transmissions in dense highway scenarios.

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Multihop Ad Hoc Networking: The Evolutionary Path

Conti

Giordano

2013

Mobile Ad Hoc Networking

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A directional data dissemination protocol for vehicular environments

Cited by 113 publications

References 25 publications

A multi-hop broadcast protocol design for emergency warning notification in highway VANETs

A multi-hop broadcast protocol design for emergency warning notification in highway VANETs

A scalable data dissemination protocol for both highway and urban vehicular environments

Multihop Ad Hoc Networking: The Evolutionary Path

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