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系統識別號 U0002-2107200923251300
中文論文名稱 以電量和可變速率為選擇路徑考量的無線隨意網路
英文論文名稱 Cross Layer Routing Protocol for Ad-hoc Wireless Network with Power Aware and Multi-rate
校院名稱 淡江大學
系所名稱(中) 電機工程學系碩士在職專班
系所名稱(英) Department of Electrical Engineering
學年度 97
學期 2
出版年 98
研究生中文姓名 白秋陽
研究生英文姓名 Chiu-Yang Pai
電子信箱 Jack_Pai@unihancorp.com
學號 796440047
學位類別 碩士
語文別 中文
口試日期 2009-07-15
論文頁數 48頁
口試委員 指導教授-李維聰
委員-劉豐豪
委員-朱國志
中文關鍵字 Ad-Hoc  AODV  Cross Layer  Energy Consumption  Multi-Rate 
英文關鍵字 Ad-Hoc  AODV  Cross Layer  Energy Consumption  Multi-Rate 
學科別分類 學科別應用科學電機及電子
中文摘要 在無線隨意網路 (Wireless Ad Hoc Network)中,當任意兩個行動節點要相互傳遞資料時,若是彼此不在傳輸的距離範圍內時,可以藉由其他的行動節點來轉送封包,使要傳送的資料到達目的節點。而電力維持對於行動節點來說是很重要的指標參數,因此,如何透過省電機制的設計,來提升整體網路的存活時間,就是當前最重要的議題。

一般在無線隨意網路中路由協定的作法都是使用最少轉送節點數(MHC:Minimum hop-count)為路徑選用的指標。但在現實狀況中,獨立節點的電力是有限的,也就代表最短轉送節點的路徑不一定就是最好的選擇,因為連線速率會與傳輸距離成反比,這也代表節點消耗更多的電力來做遠距離的資料傳送。

當有多條路徑可以到達目的節點作選擇時,在考慮整體網路的存活時間下,本論文提出以電量和可變速率為選擇路徑考量的路由協定,藉由本機制來提供高速率資料傳輸與高存活時間的網路系統。

模擬結果顯示,本論文所提的方法能夠克服以最少轉送次數為路徑選擇的缺陷,幫助路由協定找出高傳輸速率與高存活時間網路系統的路徑。
英文摘要 In the Ad-hoc On-Demand Distance Vector (AODV) wireless network, any two mobile nodes could transfer data to each other. It allows these mobile nodes to route the data through their neighbors to nodes with which they cannot directly communicate. However, battery capacity for mobile nodes is a very critical issue. Therefore, how to design power saving mechanisms to improve the overall survival time of AODV network is the most important topic.

Conventional “Layer 3” Ad-hoc routing algorithms typically make routing decisions based on the minimum hop-count (MHC). In the real world, the node is restricted with the battery capacity. Use of the MHC metric leads to selection of paths with few hops but one or more of these hops may turn out to be low-speed radio links and waste more transmission power due to adaptive rate selection at the physical layer.

In this thesis, a new cross layer routing metric algorithms has been studied. It is called, Cross Layer Routing Protocol (CLAP) for AODV wireless network with Power Aware and Multi-rate (CLAP-AODV). CLAP-AODV finds routing paths that maximize the lifetime of network and minimize the total transmission energy consumption. Design and implementation of the proposed CLAP-AODV metric for proactive ad-hoc routing protocols are also presented.

Simulation results for typical ad-hoc network scenarios show that the proposed CLAP-AODV metric achieves significantly maximize the lifetime and the high-speed radio link of network by selecting paths.
論文目次 目 錄
致謝 I
中文摘要 II
ABSTRACT III
目 錄 V
圖目錄 VII
表目錄 VIII
第一章 緒論 - 1 -
1.1 前言 - 1 -
1.2 研究動機與目的 - 2 -
1.3 論文架構 - 4 -
第二章 研究背景介紹 - 5 -
2.1 路由機制之研究 - 5 -
2.2 AODV Protocol Overview - 9 -
2.3 省電機制之研究 - 10 -
2.3.1 傳輸功率的控制 - 10 -
2.3.2 低功率的省電模式 - 12 -
2.3.3 節省功率的路由 - 14 -
第三章 CLAP-AODV 路由成本衡量機制 - 18 -
3.1 PARMA 介紹 - 19 -
3.1.1 自動可變速率機制 - 19 -
3.1.2 通道存取延遲評估 - 20 -
3.1.3 PARMA 的限制 - 21 -
3.2 CLAP-AODV 路由成本衡量公式定義與分析 - 21 -
3.2.1 路由協議方法設計 - 21 -
3.2.2 路由成本衡量公式定義 - 27 -
3.2.3 非線性的成本特性曲線 - 29 -
3.2.4 電力指標的收集方法 - 30 -
第四章 模擬與研究分析 - 31 -
4.1 模擬目標 - 31 -
4.2 模擬參數 - 31 -
4.3 以頻寬為優先考量的場景 - 32 -
4.4 以省電為優先考量的場景 - 35 -
4.5 考量權重加權值的場景 - 37 -
第五章 結論與未來研究 - 40 -
參考文獻 - 42 -


圖目錄

圖1.1無線隨意網路架構示意圖 - 1 -
圖2.1 傳統 AODV 機制示意圖 - 10 -
圖3.1 傳輸距離與連線速率分布圖 - 20 -
圖3.2 路由權值架構示意圖 - 22 -
圖3.3 單一路徑示意圖 - 23 -
圖3.4 多重路徑示意圖 - 23 -
圖3.5 路由判斷機制範例說明圖 - 24 -
圖3.6 路由成本特性曲線圖 - 29 -
圖4.1 Throughput vs offered load - 33 -
圖4.2 End-to-End Delay vs offered load - 34 -
圖4.3 Power Path Cost vs Battery Power - 36 -
圖4.4 Routing Path Cost α β vs Battery Life Time - 37 -
圖4.5 Routing Path Cost γ vs Battery Life Time - 38 -


表目錄

表2.1無線隨意網路路由協議分類示意圖 - 5 -
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