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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/8577


    Title: 在無線感應器網路中具有省電機制的傳輸協定;Power Efficient Communication Protocols for Wireless Sensor Networks
    Authors: 張晏榕;Yen-Jung Chang
    Contributors: 資訊工程研究所
    Keywords: 省電;網路存活時間;廣撥;無線感應器網路;broadcast;network lifetime;power saving;wireless sensor networks
    Date: 2002-06-25
    Issue Date: 2009-09-22 11:30:54 (UTC+8)
    Publisher: 國立中央大學圖書館
    Abstract: 無線感應器網路(Wireless Sensor Network)是由許多感應器(sensor node)所組成,感應器之間透過無線媒體(wireless medium)執行資料交換。由於感應器的低成本及體積小,使得無線感應器網路能架構於許多環境中,收集環境中各種資訊,供系統管理者使用,在軍事、民生需求或是醫學上已有相當多的應用。感應器因需長時間使用,若要使整體網路運作時間增加,則必須對電量加以控制,儘量節省不必要的電量浪費。在大部份無線感應器網路中,感應器可根據系統管理者之需求而決定感應器的擺設位置,感應器本身不具移動能力,而擺置之後亦不會再被移動,因此對於資料傳輸之方式將比其它無線網路來的方便,並且能讓資料在最短的時間內送達目地端。感應器可根據不同的需求,而執行各種不同的傳輸方式,而我們主要分析的傳輸方式主要是:一對一(One-to-One)、一對全區域(One-to-All)及全區域對全區域(All-to-All)三種。我們針對不同的傳輸方式,在五種不同網路的傳輸架構,分別提出省時且省電的演算法來傳送資料。我們計算在不同的網路架構中,不同的傳輸方式執行我們所設計之演算法所產生之效能,根據這些結果,我們即可比較這些網路架構的優缺點。網路之系統管理者可根據我們之分析結果,建構出適合本身要求之網路架構。 Due to the low-cost and small size of sensor nodes, the wireless sensor networks can be deployed in various environments to collect information for the system administrators. To extend the lifetime of wireless sensor networks, we have to conserve power so that each sensor node can operate for a longer period of time. In most wireless sensor networks, sensor nodes are without mobility and can be deployed according to the requirement, therefore, the topology of the sensor network can be predetermined. Sensor nodes initiate different transmissions for different requirements. There are three different types of communications, namely One-to-One unicast, One-to-All and All-to-All broadcasts. We design fifteen power and time efficient communication protocols in five different network topologies for three different types of communications. Finally, we evaluate the performance of these different protocols. With the evaluation results, we can construct a proper network topology according to the requirement.
    Appears in Collections:[資訊工程研究所] 博碩士論文

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