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論文名稱 Title |
在Mobile IP中使用中繼行動代理人之路徑最佳化方法
A Route Optimization Method Using MMA (Middle Mobility Agent) for Mobile IP |
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系所名稱 Department |
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畢業學年期 Year, semester |
語文別 Language |
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學位類別 Degree |
頁數 Number of pages |
59 |
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研究生 Author |
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指導教授 Advisor |
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召集委員 Convenor |
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口試委員 Advisory Committee |
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口試日期 Date of Exam |
2003-07-16 |
繳交日期 Date of Submission |
2003-08-11 |
關鍵字 Keywords |
中繼行動代理人、三角繞送問題、路徑最佳化 triangle routing problem, MMA, middle mobility agent, mobile ip, route optimization |
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統計 Statistics |
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中文摘要 |
在現今無線網路環境底下,Mobile IP目前是相對於其他眾多支援IP的方法中比較受到廠商以及研究者所青睞的,然而在Mobile IP中依然有一些問題需要去解決,其中一個問題就是三角繞送的問題,而解決三角繞送的方法在於縮短封包的繞送路徑。在這一篇論文中、我們提出了一個佈置額外的繞送代理人架構來解決這個問題,這個架構的功用在於能夠提早攔截封包並且決定是否要封裝封包並且做繞送的工作來達到縮短封包的繞送路徑。這個繞送代理人被命名為中繼行動代理人(Middle Mobility Agent) ,簡稱為MMA。我們建立了分析的模式以及模擬的環境來驗證所提出的MMA架構確實能夠縮短封包之繞送路徑以及封包之延遲時間、進而解決三角繞送問題。 |
Abstract |
Nowadays in mobile and wireless networks environment, Mobile IP is the preferred standard in supporting IP mobility among several standards. However, several problems still need to be solved. One of them is the triangle routing problem. Although drafts have been proposed by the IETF (Internet Engineering Task Force) for solving this problem, the proposed solution can not be achieved unless the draft of the Mobile IP route optimization method becomes a typical standard of the Mobile IP. In this paper, we present an extended routing agent architecture to solve this problem. The Middle Mobility Agent (MMA) in the proposed architecture can intercept datagrams earlier and determine to tunnel the incoming packet or not than the MH’s original home agent. This architecture can solve the triangle routing problem by reducing packet’s routing length. An analytical model and a simulation environment were set up to evaluate and measure the packet’s routing length and delay time of proposed architecture. The evaluation and simulation results demonstrate that the proposed method can reduce the routing length, delay time and solve the triangle routing problem. |
目次 Table of Contents |
中文摘要………………………………………………………………I 英文摘要………………………………………………………………II 目錄……………………………………………………………………III 圖目錄…………………………………………………………………IV 表格目錄………………………………………………………………VI 第一章 導言……………………………………………………………1 第二章 相關研究之介紹………………………………………………12 第三章 中繼行動代理人架構…………………………………………17 第四章 網路樸拓圖以及行走模式……………………………………37 第五章 分析模式………………………………………………………39 第六章 模擬環境以及結果……………………………………………45 第七章 結論……………………………………………………………51 參考文獻………………………………………………………………52 |
參考文獻 References |
[1] Pat R. Calhoun, C. Perkins, “DIAMETER Mobile Ipv4 Applications”, Internet Draft (draft-ietf-aaa-diameter-mobileip-07.txt, work in progress),July 2001. [2] R. Droms, Dynamic Host Configuration Protocol, RFC 1541, Bucknell University, October, 1993. [3] Q. Gao, A. Acampora. "A Virtual Home Agent Based Route Optimization for Mobile IP". Wireless Communications and Networking Conference (WCNC), IEEE 2000. [4] T. G. Harrison, C. L. Williamson, W. L. Mackrell, R. B. Bunt. “Mobile Multicast (MoM) Protocols: Multicast Support for Mobile Hosts”. MOBICOM '97, Proceedings of the Third Annual ACM/IEEE International Conference on Mobile Computing and Networking, September 26-30, 1997, Budapest, Hungary [5] T. Ihara, H. Ohmhshi, Y. Takagi. “Mobile IP Route Optimization for a Carrier-Scale IP Network”. ICECCS 2000 Proceedings of Sixth IEEE International Conference. [6] C. E. Perkins. “IP Mobility Support for Ipv4”. RFC3344, 2002. [7] C. E. Perkins. “Mobile IP: Design Principles and Practices”. Addison-Wesley, 1997. [8] C. Perkins, D. B.Johnson. “Route Optimization in Mobile IP” Internet Draft (draft-ietf-mobileip-optim-10.txt, work in progress), November 2000. [9] R. Vadali, J. Li, Y. Wu, G. Cao. “Agent-Based Route Optimization for Mobile IP”. IEEE Vehicular Technology Conference (VTC). Oct 2001. [10] K. Wong, H. Y. Wei, A. Dutta, K. Young. “Performance of IP Micro-Mobility Management schemes using Host Based Routing “, The Fourth International Symposium on Wireless Personal Multimedia Communications (WPMC01'), September 2001. [11] Y. Wang, W. Chen, S. Ho. “Performance Analysis of Mobile IP Extended with Routing Agents”, Proceedings of the 2nd European IASTED International Conference on Parallel and Distributed Systems, July 1998. [12] Network Simulator Version 2 (ns-2). www.isi.edu/nsnam |
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