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22293 Infrastructure Assisted Data Dissemination for Vehicular Sensor Networks in Metropolitan Areas
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Erman-Tüysüz, A. and Schwartz, R.S. and Dilo, A. and Scholten, J. and Havinga, P.J.M. (2012) Infrastructure Assisted Data Dissemination for Vehicular Sensor Networks in Metropolitan Areas. In: Roadside Networks for Vehicular Communications: Architectures, Applications, and Test Fields. IGI Global, Hershey, PA, USA, pp. 264-287. ISBN 978-1-46662-223-4

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Vehicular Sensor Networks (VSNs) are an emerging area of research that combines technologies developed in the domains of Intelligent Transport Systems (ITS) and Wireless Sensor Networks. Data dissemination is an important aspect of these networks. It enables vehicles to share relevant sensor data about accidents, traffic load, or pollution. Several protocols are proposed for Vehicle to Vehicle (V2V) communication, but they are prone to intermittent connectivity. In this chapter, the authors propose a roadside infrastructure to ensure stable connectivity by adding vehicle to infrastructure to the V2V communication. They introduce a data dissemination protocol, Hexagonal Cell-Based Data Dissemination, adapting it for VSNs within a metropolitan area. The virtual architecture of the proposed data dissemination protocol exploits the typical radial configuration of main roads in a city, and uses them as the basis for the communication infrastructure where data and queries are stored. The design of the communication infrastructure in accordance with the road infrastructure distributes the network data in locations that are close or easily reachable by most of the vehicles. The protocol performs a geographical routing and is suitable for highly dynamic networks, supporting a high number of mobile sources and destinations of data. It ensures reliable data delivery and fast response. The authors evaluate the performance of the proposed protocol in terms of data delivery ratio and data delivery delay. The simulation results show that HexDD significantly improves the data packet delivery ratio in VANETs.

Item Type:Book Section
Research Group:EWI-PS: Pervasive Systems
Research Program:CTIT-WiSe: Wireless and Sensor Systems
Research Project:COMMIT/SENSA: Sensor Networks for Public Safety
Uncontrolled Keywords:VANETs, Vehicular Sensor Networks, Data Dissemination, Infrastructure, Network Protocol
ID Code:22293
Deposited On:03 October 2012
More Information:statisticsmetis

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