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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/9022


    Title: Efficient In-Network Moving Object Tracking in Wireless Sensor Networks
    Authors: S.-L. Wu;C.-Y. Lin;Y.-C. Tseng;J.-P. Sheu
    Keywords: object tracking;in-network processing;sensor network;data aggregation;mobile computing.
    Date: 2006-08
    Issue Date: 2010-04-21 10:56:09 (UTC+8)
    Abstract: The rapid progress of wireless communication and embedded micro-sensing MEMS technologies
    has made wireless sensor networks possible. In light of storage in sensors, a sensor
    network can be considered as a distributed database, in which one can conduct in-network data
    processing. An important issue of wireless sensor networks is object tracking, which typically
    involves two basic operations: update and query. This issue has been intensively studied in
    other areas, such as cellular networks. However, the in-network processing characteristic of
    sensor networks has posed new challenges to this issue. In this paper, we develop several
    tree structures for in-network object tracking which take the physical topology of the sensor
    network into consideration. The optimization process has two stages. The first stage tries to
    reduce the location update cost based on a deviation-avoidance principle and a highest-weightfirst
    principle. The second stage further adjusts the tree obtained in the first stage to reduce the
    query cost. The way we model this problem allows us to analytically formulate the cost of object
    tracking given the update and query rates of objects. Extensive simulations are conducted,
    which show a significant improvement over existing solutions.
    Relation: IEEE Transactions on Mobile Computing 5(8) : 1044-1056
    Appears in Collections:[行動商務與多媒體應用學系] 期刊論文

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