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: firstname.lastname@example.org simulations to assess the performance of our approach in these different deployment scenarios and discuss their applicability in urban and semi-urban areas.
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Mrs. Tulika is an assistant professor in the Department of Computer Science and Information Technology, Sam Higginbottom Institute of Agriculture, Technology & Sciences, Allahabad, India. She received her MSc in Information Technology from Birla Institute of Technology, Mesra, Ranchi, India. She is currently pursuing her PhD in the Department of Computer Science and Engineering, Thapar University, Patiala, India. She has more than 10 publications to her credit.
Dr. Deepak Garg’s research interests lie in the area of efficient algorithm design. He has 15 years of experience in teaching undergraduate and postgraduate students. He is currently an associate professor in the Department of Computer Science and Engineering, Thapar University, Patiala, India. He has more than 80 publications to his credit. He is Chair of the ACM North India SIGACT and Secretary of the IEEE CS Chapter. He has organized several workshops and conferences on advanced computing.
Dr. Manoj Madhava Gore received his PhD in Computer Science and Engineering from the Indian Institute of Technology, Kanpur, India. Dr Gore has been on the faculty rolls of Motilal Nehru National Institute of Technology, Allahabad, since January 1991 where he is currently working as a professor in the Department of Computer Science and Engineering. He also served in the Indian Institute of Information Technology of Allahabad, as an associate professor for one academic year. Dr Gore has research interests and publications in the areas of database modeling, transaction recovery, and networks. He is a fellow of IETE (India), a senior member of the Computer Society of India, and a member of IE (India), the Indian Society of Technical Education, IEEE, and ACM. He has more than 60 publications to his credit.
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Pandey, T., Garg, D. & Gore, M.M. Publish/subscribe based information dissemination over VANET utilizing DHT. Front. Comput. Sci. 6, 713–724 (2012). https://doi.org/10.1007/s11704-012-1154-7
- vehicular ad-hoc network (VANET)
- peer-topeer overlay network
- publish/subscribe communication paradigm
- distributed hash table (DHT)