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Author Pandey, Tulika ♦ Garg, Deepak ♦ Gore, Maj Madhav
Source SpringerLink
Content type Text
Publisher SP Higher Education Press
File Format PDF
Copyright Year ©2012
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword vehicular ad-hoc network (VANET) ♦ peer-topeer overlay network ♦ publish/subscribe communication paradigm ♦ distributed hash table (DHT) ♦ Computer Science
Abstract A vehicular ad-hoc network (VANET) can be visualized as a network of moving vehicles communicating in an asynchronous and autonomous fashion. Efficient and scalable information dissemination in VANET applications is a major challenge due to the movement of vehicles which causes unpredictable changes in network topology. The publish/ subscribe communication paradigm provides decoupling in time, space, and synchronization between communicating entities, and presents itself as an elegant solution for information dissemination for VANET like environments. In this paper, we propose our approach for information dissemination which utilizes publish/subscribe and distributed hash table (DHT) based overlay networks. In our approach, we assume a hybrid VANET consisting of stationary info-stations and moving vehicles. These info-stations are installed at every major intersection of the city and vehicles can take the role of publisher, subscriber, or broker depending upon the context. The info-stations form a DHT based broker overlay among themselves and act as rendezvous points for related publications and subscriptions. Further, info-stations also assist in locating vehicles that have subscribed to information items. We consider different possible deployments of this hybrid VANET with respect to the number of info-stations and their physical connectivity with each other. We perform Received August 22, 2011; accepted January 21, 2012 E-mail: tulika_mishra@rediffmail.com simulations to assess the performance of our approach in these different deployment scenarios and discuss their applicability in urban and semi-urban areas.
ISSN 20952228
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2012-10-02
Publisher Institution Chinese Universities
Publisher Place Heidelberg
e-ISSN 16737466
Journal Frontiers of Computer Science in China
Volume Number 6
Issue Number 6
Page Count 12
Starting Page 713
Ending Page 724


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Source: SpringerLink