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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/112499


    Title: Grid-Based Hole Recovery Mechanism Using Virtual Force in Hybrid WSNs
    Authors: Huang, Kuo-Feng;Wu, Shih-Jung
    Date: 2015-05-25
    Issue Date: 2017-12-22 02:10:26 (UTC+8)
    Publisher: Hindawi Publishing Corporation
    Abstract: Sensor nodes are typically empowered with scarce energy resources and limited computing functionality in wireless sensor
    networks. However, nonuniform random deployment, depletion, and failure of sensor nodes will lead to generating coverage hole
    in the entire network. These hole problems to occur result in reducing the data transmission performance or in additional power
    consumption. Consequently, the hole problem is an important factor for the coverage completeness to prolong the network lifetime
    in wireless sensor networks. We have proposed a hole recovery mechanism based on the grid architecture in hybrid wireless sensor
    networks. Moreover, virtual force theory is utilized to determine which mobile node should enforce the recovery task. Based on the
    simulation results, the proposed mechanism is demonstrated to be able to prolong the network lifetime more than 10% with other
    proposed mechanisms. Otherwise, the proposed mechanism could maintain much more rounds for at least 80% network coverage
    ratio than other mechanisms.
    Relation: International Journal of Distributed Sensor Networks 11(5), p.1-7
    DOI: 10.1155/2015/432691
    Appears in Collections:[Graduate Institute & Department of Computer Science and Information Engineering] Journal Article

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