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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 |
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container_title | IEEE transactions on broadcasting |
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creator | Liaskos, C. Xeros, A. Papadimitriou, G. I. Lestas, M. 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 |
format | article |
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I.</creatorcontrib><creatorcontrib>Lestas, M.</creatorcontrib><creatorcontrib>Pitsillides, A.</creatorcontrib><title>Balancing Wireless Data Broadcasting and Information Hovering for Efficient Information Dissemination</title><title>IEEE transactions on broadcasting</title><addtitle>TBC</addtitle><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.</description><subject>Ad hoc networks</subject><subject>Applied sciences</subject><subject>Bandwidth</subject><subject>Broadcasting</subject><subject>Broadcasting. Videocommunications. Audiovisual</subject><subject>Business and industry local networks</subject><subject>Collaboration</subject><subject>Exact sciences and technology</subject><subject>Information hovering</subject><subject>Miscellaneous</subject><subject>Networks and services in france and abroad</subject><subject>Operation, maintenance, reliability</subject><subject>Schedules</subject><subject>Strain</subject><subject>Systems, networks and services of telecommunications</subject><subject>Telecommunications</subject><subject>Telecommunications and information theory</subject><subject>Teleprocessing networks. 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Audiovisual</topic><topic>Business and industry local networks</topic><topic>Collaboration</topic><topic>Exact sciences and technology</topic><topic>Information hovering</topic><topic>Miscellaneous</topic><topic>Networks and services in france and abroad</topic><topic>Operation, maintenance, reliability</topic><topic>Schedules</topic><topic>Strain</topic><topic>Systems, networks and services of telecommunications</topic><topic>Telecommunications</topic><topic>Telecommunications and information theory</topic><topic>Teleprocessing networks. Isdn</topic><topic>Transmission and modulation (techniques and equipments)</topic><topic>vehicular networks</topic><topic>wireless broadcast scheduling</topic><topic>Wireless communication</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liaskos, C.</creatorcontrib><creatorcontrib>Xeros, A.</creatorcontrib><creatorcontrib>Papadimitriou, G. 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I.</au><au>Lestas, M.</au><au>Pitsillides, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Balancing Wireless Data Broadcasting and Information Hovering for Efficient Information Dissemination</atitle><jtitle>IEEE transactions on broadcasting</jtitle><stitle>TBC</stitle><date>2012-03-01</date><risdate>2012</risdate><volume>58</volume><issue>1</issue><spage>66</spage><epage>76</epage><pages>66-76</pages><issn>0018-9316</issn><eissn>1557-9611</eissn><coden>IETBAC</coden><abstract>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. 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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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