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    Title: 利用網路編碼改善無線感測網路之生命週期與電量消耗
    Other Titles: Improving network lifetime and energy consumption in wireless sensor networks by network coding
    Authors: 黃央明;Huang, Yang-Ming
    Contributors: 淡江大學資訊工程學系碩士班
    顏淑惠;Yen, Shwu-Huey
    Keywords: 生命週期;無線感測網路;網路編碼;電量消耗;Lifetime;Wireless sensor network;Network Coding;energy consumption
    Date: 2011
    Issue Date: 2011-12-28 18:53:13 (UTC+8)
    Abstract: 無線感測網路(Wireless Sensor Networks)已經被視為一項未來的偵測技術,將大量的感測器節點隨機分佈後可以提供許多廣泛的應用,例如:追蹤某種目標物之狀態、環境之監測、週遭安全性之提升等。在無線感測網路中,因為感測器節點只能使用有限的能源的關係,例如電池,所以當感測器節點的能源耗盡時,會導致整個無線感測網路的功能受到影響,甚至造成整個網路無法運作。而且在網路中的某些感測器節點,因為離基地台(Base Station)的距離較近,需要幫忙離基地台較遠的感測器節點代傳資料,更造成額外的資料傳輸次數及電量消耗。因此減少感測器的能源消耗成為一個重要的議題,藉由有效的利用感測器的能源以延長無線感測網路的生命週期(Lifetime)。故本論文提出一個可應用在無線感測網路上並利用網路編碼(Network Coding)技術的資料傳輸方式,在每次傳輸中包含了多個感測節點的資料,藉以降低了感測器的資料傳送次數,進而達到節省感測器電量消耗及延長網路生命週期的目的。並且在模擬實驗分析中可以證明本論文之方法確實可以有效降低網路中感測器的資料傳送次數及電量消耗,以延長網路之生命週期。
    Wireless sensor networks (WSNs) have become a sensing technology of future. A large number of sensor nodes can be randomly sprayed in an area and support many applications such as tracking the status for a target, monitoring environment and improving public security. The sensor nodes of WSNs can only use limited energy like battery. When the energy has been exhausted, WSNs cannot work anymore. In addition, sensor nodes which near Base Station need to relay data from other nodes. It takes extra data transmission and energy consumption. In order to extend the lifetime of WSNs, the management of the sensor''s energy is an important issue. In this thesis, we proposed a data transmission scheme with Network Coding mechanism to reduce data transmission times and energy consumption. In our simulation result we prove our proposed mechanism can reduce data transmission times and energy consumption and extend network lifetime.
    Appears in Collections:[資訊工程學系暨研究所] 學位論文

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