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Balancing Wireless Data Broadcasting and Information Hovering for Efficient Information Dissemination

Wireless data broadcasting is an efficient, bandwidth preserving way of data dissemination. However, as the amount of data increases, the waiting time of the clients becomes unacceptably high. The present paper proposes the combination of optimal wireless broadcasting and information hovering, as an...

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Published in:IEEE transactions on broadcasting 2012-03, Vol.58 (1), p.66-76
Main Authors: Liaskos, C., Xeros, A., Papadimitriou, G. I., Lestas, M., Pitsillides, A.
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Language:English
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cited_by cdi_FETCH-LOGICAL-c293t-cc20e984f2a9936b2bb40960da7be90b5036c327d93e2346cadd2f2ed9a313af3
cites cdi_FETCH-LOGICAL-c293t-cc20e984f2a9936b2bb40960da7be90b5036c327d93e2346cadd2f2ed9a313af3
container_end_page 76
container_issue 1
container_start_page 66
container_title IEEE transactions on broadcasting
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creator Liaskos, C.
Xeros, A.
Papadimitriou, G. I.
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Pitsillides, A.
description Wireless data broadcasting is an efficient, bandwidth preserving way of data dissemination. However, as the amount of data increases, the waiting time of the clients becomes unacceptably high. The present paper proposes the combination of optimal wireless broadcasting and information hovering, as an effective means of performance improvement in vehicular networks with locality of demand. While state-of-the-art works exploit user collaboration only as a means of wireless coverage extension, the proposed scheme proposes parallel dissemination through broadcasting and user networking over the whole studied area. Optimal, periodic broadcast scheduling is adopted at the highest tier for data dissemination. At the lowest tier, users can exploit information hovering around selected anchoring points, in order to retrieve data faster than their next scheduled broadcast. The issue of sharing the dissemination load optimally between the broadcasting and the hovering subsystems is mapped to the classic pull-push balancing problem. Through analysis, the long-standing "optimal cut-off point" balancing method is shown to be suboptimal, and a new method is proposed which achieves lower client serving time in any of the cases. Simulation results in realistic VANETs show that the proposed dissemination scheme surpasses state-of-the-art works in terms of efficiency and client satisfaction.
doi_str_mv 10.1109/TBC.2011.2163449
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subjects Ad hoc networks
Applied sciences
Bandwidth
Broadcasting
Broadcasting. Videocommunications. Audiovisual
Business and industry local networks
Collaboration
Exact sciences and technology
Information hovering
Miscellaneous
Networks and services in france and abroad
Operation, maintenance, reliability
Schedules
Strain
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
Transmission and modulation (techniques and equipments)
vehicular networks
wireless broadcast scheduling
Wireless communication
title Balancing Wireless Data Broadcasting and Information Hovering for Efficient Information Dissemination
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