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23937 A scalable data dissemination protocol for both highway and urban vehicular environments
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Schwartz, R.S. and Scholten, J. and Havinga, P.J.M. (2013) A scalable data dissemination protocol for both highway and urban vehicular environments. EURASIP Journal on wireless communications and networking (online), 2013 (257). pp. 1-19. ISSN 1687-1499 *** ISI Impact 0,627 ***

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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.

Item Type:Article
Research Group:EWI-PS: Pervasive Systems
Research Program:CTIT-WiSe: Wireless and Sensor Systems
Research Project:SI4MS: Sensor Intelligence For Mobility Systems
Uncontrolled Keywords:Vehicular networks, ad-hoc networks, data dissemination
ID Code:23937
Deposited On:23 December 2013
ISI Impact Factor:0,627
More Information:statisticsmetis

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