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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/75780


    Title: The k-Barrier Coverage Mechanism in Wireless Visual Sensor Networks
    Authors: Chang, Chih-Yung;Hsiao, Chih-Yao;Chang, Chih-Yung
    Contributors: 淡江大學資訊工程學系
    Keywords: Barrier Coverage
    Date: 2012-04
    Issue Date: 2012-04-13 21:37:06 (UTC+8)
    Abstract: Wireless Visual Sensor Networks (WVSNs) consist of a set of camera sensor nodes each of which equips with a camera and is capable of communicating with the other camera sensors within a specific distance range. As an extension of wireless sensor networks (WSNs), the WVSNs can provide richer information such as image and picture during executing targets monitoring and tracking tasks. Since the sensing area of each camera sensor is fan-shaped, existing barrier-coverage algorithms developed for WSNs cannot be applied to the WVSNs. This paper is considering to address the k-barrier coverage problems in WVSNs and to propose a barrier-coverage approach aiming at finding a maximal number of distinct defense curves with each of which consists of as few camera sensors as possible but still guarantees k-barrier coverage. Compared with the related work, experimental study reveals that the proposed k-barrier coverage mechanism constructs more defense curves than the k-barrier coverage and the number of camera sensors participating in each defense curve is smaller.
    Relation: 2011 IEEE Wireless Communications and Networking Conference (IEEE WCNC)
    DOI: 10.1109/WCNC.2012.6214180
    Appears in Collections:[Graduate Institute & Department of Computer Science and Information Engineering] Proceeding

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