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研究生:吳宗保
研究生(外文):Tsung-Pao Wu
論文名稱:適用於多階無線區域網路之MobileIP
論文名稱(外文):Design and Implementation of Mobile IP for Multihop Wireless LANs
指導教授:簡榮宏簡榮宏引用關係
指導教授(外文):Rong-Hong Jan
學位類別:碩士
校院名稱:國立交通大學
系所名稱:資訊科學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:1999
畢業學年度:87
語文別:英文
論文頁數:50
中文關鍵詞:特殊無線區域網路行動式網際網路規約多階
外文關鍵詞:ad-hoc LANMobile IPmultihop
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無線網路環境可分為有基礎架構(infrastructure)的無線網路與無基礎架構的特殊網路(ad-hoc network)兩大類。在ad-hoc網路中,行動機(mobile host)通常需藉由其他的行動機才能連接到主幹網路。這種系統我們稱之為多階(multihop)網路系統。本篇論文主要是延伸並修正Mobile IP,使之適用於多階無線區域網路。同時我們亦針對所提的方法,實作一多階無線區域網路雛型系統,使得行動機能夠在不同的網域中漫遊。此外本系統與原先的Mobile IP系統是互通的(transparent),即在單階(single hop)環境下亦能正常運作。

Wireless networks can be divided into infrastructure networks and ad-hoc networks. In an ad-hoc local area network, mobile hosts can access Internet via intermediate mobile hosts. This kind of local area network (LAN) is called as multihop wireless LANs. In this thesis, we extend and modify the Mobile IP protocol to support multihop wireless LANs such that the mobile host can roam among different subnets. In addition, we also implement this new Mobile IP under Window environment. Our proposed system is transparent with the original Mobile IP, i.e., it can also work in the signal hop wireless LAN.

Abstract (in Chinese)i
Abstract (in English)ii
Acknowledgementsiii
Contentsiv
List of Tablesvii
List of Figuresviii
1. Introduction1
1.1 Problem Description.......................................................................................3
1.1.1 Routing Mechanism of Internet Protocol.....................................................3
1.1.2 Other Problems of Mobile IP in Ad-hoc Networks......................................4
1.2 Related Work.................................................................................................6
2. Mobile IP and Routing Algorithms...................................................................8
2.1 Mobile IP........................................................................................................8
2.1.1 Terminology................................................................................................8
2.1.2 Overview of Mobile IP System....................................................................10
2.1.3 Agent Discovery..........................................................................................12
2.1.4 Registration..................................................................................................13
2.1.5 Tunnel..........................................................................................................14
2.2 Routing Algorithms.........................................................................................16
2.2.1 Table-Driven Routing...................................................................................16
2.2.2 On-Demand Routing....................................................................................18
2.2.3 Comparisons........................................................................................................20
2.2.4 Interoperability with Mobile IP..............................................................................21
3. Mobile IP for Multihop Wireless LANs........................................................................23
3.1 Overview of Our System..............................................................................23
3.2 Issues........................................................................................................25
3.2.1 Routing Problem........................................................................................................25
3.2.2 Construction of Hierarchical Tree..............................................................................26
3.3 System Architecture...................................................................................................28
3.3.1 Mechanism of Sending Packets..............................................................................29
3.3.2 Mechanism of Receiving Packets..............................................................................30
3.3.3 Registration Procedure..............................................................................31
3.3.4 Communication........................................................................................................32
4. Implementation........................................................................................................34
4.1 System Setup........................................................................................................34
4.1.1 Environment........................................................................................................34
4.1.2 System Parameters........................................................................................................36
4.2 System Elements........................................................................................................37
4.2.1 Home Agent........................................................................................................38
4.2.2 Foreign Agent........................................................................................................39
4.2.3 Advertiser........................................................................................................41
4.2.4 Mobile Client........................................................................................................41
4.3 The Problems in the Implementation..............................................................................44
4.3.1 Foreign Agent Creates "direct route"..............................................................................45
4.3.2 Relay Registration Request Message..............................................................................45
4.3.3 Bridge............................................................................................................................45
4.3.4 Modify Agent Advertisement Message..........................................................................46
5. Conclustion........................................................................................................................47
Bibliography...........................................................................................................................48

[1] J. B. Postel ed., "Internet Protocol",RFC 791,Sept. 1981.
[2] C. E. Perkins ed. "Ipv4 Mobility Support",RFC 2002,Oct. 1996.
[3] http://www.ietf.org
[4] D. B. Johnson and C. E. Perkins ed. "Routing Optimization in Mobile IP",draft-ietf-mobileip-optim-07.txt,Nov. 1997.
[5] F. Ferguson, K. Uehara, H. Sunahara, and J. Murai, "VIP: A protocol providing host mobility," Commun. ACM, vol.37, no.8, pp.67-75, Aug. 1994.
[6] A. Dixit and V. Gupta, "Mobile-IP for Linux(ver 1.00)", available at http://anchor.cs.binghamton.edu/~mobileip
[7] C. C. Ho, "Design and Implementation of a Seamless Mobile Networking System with Wireless Lans" 國立交通大學資訊工程系碩士論文 Jun. 1997.
[8] T. S. Huang, "Mobile IP with Route Optimization for Windows," 國立交通大學資訊科學研究所碩士論文, Jun. 1997.
[9] J. Jubin and J. Tornow, "The DARPA Packet Radio Network Protocols," Proc. IEEE, vol. 75, no. 1, 1987, pp. 21-32.
[10] Elizabaeth M. Royer and C-K. Toh, "A Review of Current Routing Protocols for Ad Hoc Mobile Wireless Networks," IEEE Pers. Commun., Apr. 1999, pp. 46-55.
[11] L. R. Ford Jr. and D. R. Fulkerson, Flows in Networks, Princeton Univ. Press, 1962.
[12] C. E. Perkins and P. Bhagwat, "Highly Dynamic Destination-Sequenced Distance-Vector Routing (DSDV) for Mobile Computers," SIGCOMM Conf. Proc., Oct. 1994, pp. 234-44.
[13] S. Murthy and J. J. Garcia-Luna-Aceves, "A Routing Protocol for Packet Radio Networks," MOBICOM Conf. Proc., Nov. 1995.
[14] S. Murthy and J. J. Garcia-Luna-Aceves, "An Efficient Routing Protocol for Wireless Networks," ACM Mobile Networks and App. J., Special Issue on Routing in Mobile Communication Networks, Oct. 1996, pp. 183-97.
[15] C. C. Chiang, "Routing in Clustered Multihop, Mobile Wireless Networks with Fading Channel," Proc. IEEE SICON '97, Apr. 1997, pp. 197-211.
[16] D. B. Johnson and D. A. Maltz, "Protocols for Adaptive Wireless and Mobile Networking," IEEE Pers. Commun., vol. 3, no. 1, Feb. 1996.
[17] D. B. Johnson and D. A. Maltz, "Dynamic Source Routing in Ad-Hoc Wireless Networks," Mobile Computing, T. Lmielinski and H. Korth, Eds., Kluwer, 1996, pp. 153-81.
[18] M. S. Corson and A. Ephremides, "A Distributed Routing Algorithm for Mobile Wireless Networks," ACM/Baltzer Wireless Networks J., vol. 1, no. 1, Feb. 1995, pp. 61-81.
[19] C-K. Toh, "A Novel Distributed Routing Protocol To Support Ad-Hoc Mobile Computing," Proc. 1996 IEEE 15th Annual Int'l. Phoenix Conf. Comp. And Commun., Mar. 1996, pp. 480-86.
[20] C. E. Perkins and E. M. Royer, "Ad-hoc On-Demand Distance Vector Routing," Proc. 2nd IEEE Wksp. Mobile Comp. Sys. And Apps., Feb. 1999, pp. 90-100.
[21] V. D. Park and M. S. Corson, "A Highly Adaptive Distributed Routing Algorithm for Mobile Wireless Networks," Proc. INFOCOM '97, Apr. 1997.
[22] R. Dube et al., "Signal Stability based Adaptive Routing (SSA) for Ad-Hoc Mobile Networks," IEEE Pers. Commun., Feb. 1997, pp. 36-45.
[23] D. E. Deering ed. "ICMP Router Dicsovery Messages", RFC 1256, Sept. 1991.
[24] J. B. Postel ed. "Internet Control Message Protocol",RFC 792, Sept. 1981.
[25] J. Postel. "User Datagram Protocol," RFC 768,Aug.1980.
[26] D. L. Rivest, "The MD5 Message-Digital Algorithm," RFC 1321,Apr. 1992.
[27] R. Dorms, "Dynamic Host Configuration Protocol",RFC 1541,Oct. 1993.
[28] W. Simpson,ed. "Point-to-Point Protocol,"RFC 1332. July 1994.
[29] D. C. Plummer, "An Ethernet Address Resolution Protocol: Or Converting Network,Protocol Address to 48bits Ethernet Address for Transmission on Ethernet Hardware," RFC 826,Nov. 1982.
[30] C. E. Perkins, "IP Encapsulation within IP," RFC 2003,May 1996.
[31] G. Malkin, "RIP Version 2 Carrying Additional Information," RFC 1723, 1994.
[32] J. Moy, "OSPF Version 2," RFC 1583, 1994.
[33] Elizabaeth M. Royer and C-K. Toh, "A Review of Current Routing Protocols for Ad Hoc Mobile Wireless Networks," IEEE Pers. Commun., Apr. 1999, pp. 46-55.
[34] Toshiaki TANAKA et al., "Nomadic Computing Environment Employing Wired and Wireless Networks," IEICE Trans. Commun., Aug. 1998, pp. 1565-73.

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