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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/88124

    Title: 無線多媒體感測網路中資料傳輸架構之探討
    Other Titles: Research on data transmission schemes for wireless multimedia sensor networks
    Authors: 李柏逸;Li, Bo-Yi
    Contributors: 淡江大學電機工程學系博士班
    莊博任;Chuang, Po-Jen
    Keywords: 無線感測網路;多路徑傳輸;負載平衡;貪婪演算法;Wireless sensor networks;multipath routing;Load Balancing;greedy routing
    Date: 2012
    Issue Date: 2013-04-13 12:01:52 (UTC+8)
    Abstract: 近年來,由於無線多媒體感測網路中多種應用的興起,使得其成了熱烈討論的議題,而如何在充滿限制的環境下,提升其效能與生命週期已成了重要的焦點。
    Wireless multimedia sensor networks have been widely discussed in recent years because there are many potential applications, and how to increase the throughput in constrained environments has become the main challenge.
    Multipath routing is a promising solution because it can improve the channel utilization rate, reduce transmission delay, and balance the transmission load, but the efficiency will be limited if we construct the paths without taking the characteristics of wireless environments and sensor networks into consideration.
    In this thesis, we first explain the characteristics of data transmission schemes in wireless multimedia sensor networks, and then analyze the pros and cons of multipath routing, especially the problem of inter-path interference.
    After discussing the related works about routing schemes, we propose a Geographic Energy-Aware non-interfering Multipath (GEAM) routing scheme which can keep high performance through harsh sensor network environment.
    The proposed scheme divides the whole network topology into many districts, and in the same time forwards data through districts that won’t interfere with others, to achieve interference-free transmissions. We also adjust the load and boundary of each district according to the energy and location information of nodes in that district.
    Our scheme does not construct fixed paths in advance and can keep high performance even though the network topology changes rapidly. In the simulation we show that proposed scheme achieves high performance for real-time transmission and can evenly distribute the transmission loads to most of nodes in the network.
    Appears in Collections:[電機工程學系暨研究所] 學位論文

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