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    Title: 應用虛擬錨點座標路由機制於無線感測器網路
    Other Titles: A routing mechanism using virtual coordination anchor node apply to wireless sensor networks
    Authors: 蔡承翰;Tsai, Cheng-Han
    Contributors: 淡江大學資訊工程學系碩士班
    顏淑惠
    Keywords: 路由機制;虛擬錨點;虛擬座標系統;無線感測器網路;routing;virtual anchor node;virtual coordinate system;Wireless sensor networks
    Date: 2012
    Issue Date: 2013-04-13 11:53:53 (UTC+8)
    Abstract: 近年來無線感測器網路(Wireless Sensor Networks, WSNs)被廣泛地運用在現實生活中,路由(Routing)問題一直是無線感測器網路中學者們討論的熱門議題,為了兼顧體積小、成本低且結構簡單等特性,如何有效且迅速地將無線感測器節點(Wireless Sensor Node)偵測到的資料回傳給資料收集節點(Sink Node)即為其中之一。先前的研究中,大多數是使用地理路由(Geographic Routing)來解決這個問題,但是使用地理路由必須知道自己的位置資訊,也需要知道一步鄰居(One Hop)和目的地節點的地理位置資訊,一般是使用全球衛星定位系統(Global Positioning System, GPS)來獲得,但是使用全球衛星定位系統會增加成本及耗電量,使得無線感測器網路的生命週期縮短。所以本文探討在隨機分佈無線感測器節點的網路中,不使用全球衛星定位系統,而是由資料收集節點開始去建立虛擬座標系統(Virtual Coordinate System, VCS),藉由虛擬座標系統找到位於場景中四個邊界極值的節點當作虛擬錨點,虛擬錨點再與資料蒐集節點建立最短路徑,以便代傳資料,進而建立一個低耗能、延長整體網路生命週期、有效率的傳輸以及可容錯的路由機制。
    In recent years, wireless sensor networks are widely used in many areas. How to collect information efficiently and deliver to base station reliably among the hot topics in wireless sensor networks. Most of the previous studies used the Geographic routing to resolve this problem. Sensors have to know not only their location information, but also one hop neighbor and destination location information. Generally, the Global Positioning System (GPS) provides location and time information, but it will increase the cost, power consumption, and reduce the lifetime of wireless sensor network. In this paper, we propose a Virtual Coordinate System (VCS) start from sink to replace GPS. With the VCS, WSNs can find the four extreme nodes in the scene boundary as virtual anchor nodes. Then, a shortest path between virtual anchor nodes and sink for transfer data in the random distribution wireless sensor network is created. In this approach, establish a low-power, extend the network lifetime, efficient and fault-tolerant routing mechanism.
    Appears in Collections:[資訊工程學系暨研究所] 學位論文

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