α-Fraction First Strategy for Hierarchical Model in Wireless Sensor Networks,ERICDATA高等教育知識庫
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篇名
α-Fraction First Strategy for Hierarchical Model in Wireless Sensor Networks
並列篇名
α-Fraction First Strategy for Hierarchical Model in Wireless Sensor Networks
作者 Jeng-Shyang PanLingping KongTien-Wen SungPei-Wei TsaiVáclav Snášel
英文摘要
Energy hole refers to the critical issue near the sinks for data collecting, this problem effects the lifetime of wireless sensor network to a great extent. Frequently data forwarding from distributed sensors to the sink will speed up the energy consumption of the sensors near the sink. This circumstance shortens the lifetime of the sensor network. In this paper, an α-fraction first strategy was proposed to build a hierarchical model of wireless sensor networks that concerning the energy consumption. The model mixes the so-called relay nodes into the network for transmitting and collecting data from the other sensor nodes. We studied the Farthest First traversal and Harel methods, then combined the proposed α-fraction first strategy with the two methods respectively. Three algorithms of FF+Fr(α), HD+Fr(α), and HL+Fr(α) were designed for determining the relay nodes in sensor networks. The algorithms can be used to construct a twotier sensor network with fewer relay nodes than the results of the Farthest First traversal and Harel methods. The proposed strategy also could be used with any other algorithms that regarding for choosing one of many options. The simulation results show that our proposed algorithms perform well. Thus, the network lifetime can be prolonged.
起訖頁 1717-1726
關鍵詞 Wireless sensor networkFarthest-first strategyHierarchical networkNearest-first strategy
刊名 網際網路技術學刊  
期數 201811 (19:6期)
出版單位 台灣學術網路管理委員會
DOI 10.3966/160792642018111906009   複製DOI
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