Results 261 to 270 of about 9,870 (306)

In-Network Aggregation for Vehicular Ad Hoc Networks.

IEEE Commun. Surv. Tutorials, 2014
In-network aggregation mechanisms for vehicular ad hoc networks aim at improving communication efficiency by summarizing information that is exchanged between vehicles. Summaries are calculated while data items are generated in and forwarded through the network.
Dietzel, Stefan, Petit, Jonathan, Kargl, Frank, Scheuermann, Björn   +3 more
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Localization in Vehicular Ad Hoc Networks

2005 Systems Communications (ICW'05, ICHSN'05, ICMCS'05, SENET'05), 2005
Communications between vehicles constitute a Vehicular Ad hoc Network (VANET). Contrary to MANET in VANET nodes which are vehicles can move with high speed and generally must communicate quickly and reliably. When an accident occurs in a road or highway, alarm messages must be disseminated, instead of ad-hoc routed, to inform all other vehicles.
openaire   +1 more source

Vehicular Backbone Network Approach to Vehicular Military Ad Hoc Networks

MILCOM 2013 - 2013 IEEE Military Communications Conference, 2013
We consider a tactical command center that issues broadcast data message flows for dissemination to all vehicles traveling as team members of a convoy, or along a multilane linear road segment. We propose a networking protocol which uses location aware data to identify and elect certain vehicles that reside at preferred locations to act as relay nodes,
Izhak Rubin, BAIOCCHI, Andrea, CUOMO, Francesca, SALVO, PIERPAOLO   +3 more
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Fuzzy cognitive Vehicular Ad hoc Networks

2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), 2011
The Wireless Access in Vehicular Environments (WAVE) protocol stack is one of the most important protocols proposed to standardize and allocate spectrum for vehicle-to-vehicle and vehicle-to-infrastructure communication. In a previous work, we proved that WAVE faces a spectrum scarcity problem which hinders reliable exchange of safety information.
Ali J. Ghandour, Kassem Fawaz, Hassan Artail   +2 more
openaire   +1 more source

Enhancing unlinkability in Vehicular Ad Hoc Networks

Proceedings of 2011 IEEE International Conference on Intelligence and Security Informatics, 2011
Communication messages in Vehicular Ad-hoc Networks (VANETs) can be used to track movement of vehicles. In this paper, we address the problem of movement tracking and enhance location privacy without affecting security and safety of vehicles. By considering unique characteristics of VANETs, we firstly propose a synchronized pseudonym changing protocol ...
Hesiri Weerasinghe, Huirong Fu, Supeng Leng, Ye Zhu 0001   +3 more
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Vehicular Ad Hoc Networks

2009
A vehicular ad hoc network consists of smart vehicles on the road and provides communication services among nearby vehicles or with roadside infrastructure. It is envisioned to provide numerous interesting services in the near future. This chapter first introduces the basic application scenarios of vehicular ad hoc network and its unique ...
Yu Wang, Fan Li
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Reliable broadcast in vehicular ad-hoc networks

2013 9th International Wireless Communications and Mobile Computing Conference (IWCMC), 2013
For most safety-related applications that are envisaged in VANETs, the provisioning of a real-time medium access control is of great importance. However, the ability to access the wireless medium in a collision-free and time-bounded manner is particularly challenging in networks with unreliable wireless channel and dynamic topologies.
Shu Zhang, Mikael Asplund, Vinny Cahill
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Performance measurements of a vehicular ad hoc network

2004 IEEE 59th Vehicular Technology Conference. VTC 2004-Spring (IEEE Cat. No.04CH37514), 2005
Within the framework of the FLEETNET project, a real-world ad hoc network testbed was built using cars as mobile nodes. These cars were equipped with computing and communication devices. As ad hoc routing algorithm, position-based forwarding implemented on Linux-based laptops was used, exploiting position information gathered by on-board navigation ...
Möske, M., Füßler, Holger, Hartenstein, Hannes, Franz, W.   +3 more
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A Witness System for Vehicular Ad Hoc Networks

2009 IEEE 34th Conference on Local Computer Networks, 2009
Searching for witnesses in case of road accidents is a challenging task for the police and involved persons. In this paper, we propose a mechanism that helps to find witnesses. Our solution preserves the potential witnesses' anonymity and gives them a free hand to decide whether to step forward as a witness or not.
Nasir Ali, Björn Scheuermann 0001, Martin Mauve   +2 more
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Security threats in vehicular ad hoc networks

2016 International Conference on Advances in Computing, Communications and Informatics (ICACCI), 2016
A new type of Mobile Ad Hoc Network (MANET) is Vehicular Ad Hoc Network (VANET) that allows smart transport system to provide road security and reduce traffic jam through automobile to automobile and automobile to roadside communication. However, security issues for VANETs have become a major concern for researchers.
Ahmed Shoeb Al Hasan, Md. Shohrab Hossain, Mohammed Atiquzzaman   +2 more
openaire   +1 more source