隨意行動網路下快取機制之效能分析

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Title:	隨意行動網路下快取機制之效能分析
Other Titles:	A performance analysis of caching mechanism for mobile Ad hoc networks
Authors:	葉泰宏;Yueh, Tai-hong
Contributors:	淡江大學資訊工程學系碩士班黃心嘉;Hwang, Shin-jia
Keywords:	行動隨意網路;快取;通透式快取;無線網路;快取模擬;Ad hoc networks;cache;Transparent Cache;mobile computing;wireless networks
Date:	2006
Issue Date:	2010-01-11 06:07:47 (UTC+8)
Abstract:	隨意行動網路（Mobile ad hoc networks, 簡稱MANETs）技術，屬於無基礎建設之無線網路（Infrastructureless Mobile Network）。由於無基地台協助，行動節點（Mobile nodes, 簡稱MNs）本身必須彌補這方面的功能。因為行動節點會隨時移動，因此行動節點必須使用動態的資訊收集而得以順利的傳送資料。但此一特性將對行動節點上的資源有著更多的消耗。鑑於行動節點本身的硬體資源是受限的，而如何減少資源浪費就是一門相當重要的課題。在本論文中提出了通透性快取機制的建議，以縮短路徑長度、增加檔案傳輸速度。並且在資料的重覆使用率上有著更佳的表現，而可減少資源的消耗。此外本論文中亦開發了一個模擬的環境以進行各種快取機制的模擬，藉以了解各種快取機制的效果與缺失來進行參考及改進。同時藉由數據結果之分析得以顯出通透性快取機制與其他機制相較下之優點。 A mobile ad hoc network (MANETs), technology is part of Infrastructureless Mobile Network. Since there is no assistance of base station, Mobile nodes (MNs) itself has to make up this kind of function. Because mobile nodes might move anytime, so it must use dynamic information collection to send data smoothly. However, this feature will consume many resources on mobile nodes. Seeing that the hardware resource of mobile node is limited, how to reduce resource waste therefore is a very important issue. This essay proposes recommendations for transparent cache mechanism to shorten path length and increase file transmission speed; meanwhile it has better performance in respect of data recycling rate and thereby reduces resource consumption. In addition, this essay also develops a simulated environment to process various cache mechanism simulations to understand different cache mechanism effect and drawbacks for references and improvements. In the mean time, the strengths of transparent cache mechanism may appear as comparing to other mechanisms by using data result analysis.
Appears in Collections:	[Graduate Institute & Department of Computer Science and Information Engineering] Thesis

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