National Tsing Hua University Institutional Repository:A Distributed Flow-Based Guiding Protocol in Wireless Sensor Networks
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    National Tsing Hua University Institutional Repository > 歷任校長 > 陳文村 (2006-2010)  > 會議論文 >  A Distributed Flow-Based Guiding Protocol in Wireless Sensor Networks


    题名: A Distributed Flow-Based Guiding Protocol in Wireless Sensor Networks
    作者: Po-Yu Chen;Zan-Feng Kao;W. T. Chen;Chi-Han Lin
    教師: 陳文村
    日期: 2011
    出版者: Institute of Electrical and Electronics Engineers
    關聯: Proceedings of the 40th International Conference on Parallel Processing (ICPP 2011), Institute of Electrical and Electronics Engineers, Taipei, Taiwan, 13-16 September 2011, pages 105-114
    关键词: sensor network
    guiding protocol
    load balancing
    traffic model
    摘要: Guiding navigation is an important application in wireless sensor networks to make moving objects leave dangerous areas safely and quickly. However, guiding policy without considering congestion problem will postpone the escape time. In this paper, we propose a distributed flow-based guiding protocol for indoor environments to evacuate mobile objects from dangerous area to exit. Our goal is to construct less congested paths to minimize the escape time and the congestion time. Each sensor in the network holds an artificial potential value determined by the moving speed of object on a path monitored by it, the distances to exits, and the capacity of exits that have the maximum potential values, and objects are directed to paths with higher potential values. Nevertheless, our approach also solves the local maximum problem that objects are trapped at a non-exit location holding a local maximum potential value. In addition, we adopt a traffic flow model for transforming object density of a road into object's velocity to reduce the computational cost and the communication overhead. Simulation results show our proposed protocol can efficiently decrease the escape time and congestion time.
    显示于类别:[陳文村 (2006-2010) ] 會議論文
    [資訊工程學系] 會議論文


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