In a server-proxy-client 3-tier networking architecture that is executed in the wireless mobile network, proxies should be dynamically assigned to serve mobile hosts according to geographical dependency and the network situation. The goal of proxy handoff is to allow a mobile host still can receive packets from the corresponding server when its served proxy is switched from the currently used one to the other one. When proxy handoff occurs, a proper proxy should be selected based on the proxyload balance concern and wireless network situation concern. In this thesis, a 3-tier Multimedia Mobile Transmission Platform, called MMTP, is proposed to solve the proxy handoff problem in the IPv6-based wireless mobile network. In MMTP, a proxy handoff scheme, which is based on the application layer anycast technique, is proposed. A proper proxy is selected from a number of candidate proxies that are derived using the application layer technique. Analysis of executing proxy handoff and the load distribution of proxies for the IPv6-based MMTP are also even in this thesis.

[1] A. Balachandran, G. Voelker, P. Bahl, and P. Rangan, “Characterizing User Behavior and Network Performance in a Public Wireless LAN,” Proceedings of SIGMETRICS, pp. 195–205, June 2002.

[2] S. Banerjee and A. Agrawala, “Estimating Available Capacity of a Network Connection,”Proceedings of IEEE International Conference on Networks, pp. 181–186, Sept. 2001.

[3] S. Bhattacharjee, M. Ammar, E. Zegura, V. Shah, and Z. Fei, “Application-layer Anycasting,” Proceedings of the IEEE INFOCOM, VOL. 3, NO. 3, pp. 1388–1396, Apr. 1997.

[4] C. Castelluccia, “HMIPv6: A Hierarchical Mobile IPv6 Proposal,” ACM SIGMOBILE Mobile Computing and Communications Review, VOL. 4, NO. 1, pp. 48–59, 2000.

[5] S. Deering and R. Hinden, “Internet Protocol, Version 6 (IPv6),” RFC 2460, Dec.1998.

[6] M. Endler and V. Nagamuta, “General Approaches for Implementing Seamless Handover,”Proceedings of the 2th ACM International Workshop on Principles of Mobile Computing, pp. 17–24, Oct. 2002.

[7] S. Hadjiefthymiades, V. Matthaiou, and L. Merakos, “Supporting the WWW in Wireless Communications Through Mobile Agents,” Mobile Networks and Applications, VOL. 7, NO. 4, pp. 305–313, 2002.

[8] S. Hadjiefthymiades and L. Merakos, “Using Proxy Cache Relocation to Accelerate Web Browsing in Wireless/Mobile Communications,” Proceedings of the 10th International Conference on World Wide Web, pp. 26–35, May 2001.

[9] F. Hao, E. Zegura, and M. Ammar, “QoS Routing for Anycast Communications: Motivation and an Architecture for DiffServ Networks,” IEEE Communications Magazine, VOL. 40, NO. 6, pp. 48–56, June 2002.

[10] R. Hinden and S. Deering, “IP Version 6 Addressing Architecture,” RFC 1884, ec.1995.

[11] E. Katz, M. Butler, and R. McGrath, “A Scalable HTTP Server:The NCSA Prototype,”Computers Networks and ISDN Systems, VOL. 27, pp. 155–164, Aug. 1994.

[12] K. Kim, H. Lee, and K. Chung, “A Distributed Proxy Server System for Wireless Mobile Web Service,” Proceedings of the 15th International Conference on Information Networking, pp. 749–754, May 2001.

[13] R. Koodli, “Fast Handovers for Mobile IPv6,” Internet draft, Mar. 2002.

[14] T. Koodli, E. Nordmark, and W. Simpson, “Neighbor Discovery for IP Version 6 (IPv6),” RFC 2461, Dec. 1998.

[15] D. Kotz and K. Essien, “Analysis of a Campus-wide Wireless Network,” Proceedings of MOBICOM, pp. 107–118, Sept. 2002.

[16] C. Lee and R. Steele, “Effect of Soft and Softer Handoffs on CDMA System Capacity,”IEEE Transactions on Vehicular Technology, VOL. 47, pp. 830–841, Aug. 1998.

[17] P. McCann, “Mobile IPv6 Fast Handovers for 802.11 Networks,” Internet draft, Oct. 2002.

[18] A. Mishra, M. Shin, and W. Arbaugh, “An Empirical Analysis of the IEEE 802.11 MAC Layer Handoff Process,” Technical Report of University of Maryland Department of Computer Science, NO. CS-TR-4395, Sept. 2002.

[19] S. Pack and Y. Choi, “Pre-Authenticated Fast Handoff in a Public Wireless LAN based on IEEE 802.1x Model,” IFIP TC6 Personal Wireless Communications, Oct. 2002.

[20] C. Partridge, T. Mendez, and W. Milliken, “Host Anycasting Service,” RFC 1546, Nov. 1993.

[21] C. Perkins, “IP Mobility Support for IPv4,” RFC 3220, Jan. 2002.

[22] C. E. Perkins, “Mobile IP and the IETF,” ACM SIGMOBILE Mobile Computing and Communications Review, VOL. 4, NO. 3, pp. 6–11, 2000.

[23] R. Prakash and V. Veeravalli, “Accurate Performance Analysis of Hard Handoff Algorithms,” Proceedings of the 9th IEEE International Symposium on Personal,Indoor, and Mobile Radio Communications (PIMRC), pp. 360–364, Sept. 1998.

[24] J. Seitz, K. Cheverst, N. Davies, M. Ebner, and A. Friday, “Management of Proxy Objects Providing Multimedia Applications in the Mobile Environment,” Proceedings of the 6th IFIP/IEEE International Symposium on Integrated Network Management, pp. 915 –928, May 1999.

[25] S. Tekinay and B. Jabbari, “Handover and channel assignment in mobile cellular networks,” IEEE Communications Magazine, VOL. 29, NO. 11, pp. 42–46, Nov. 1991.

[26] S. Thomson and T. Narten, “IPv6 Stateless Address Autoconfiguration,” RFC4262, Dec. 1998.

[27] J. Wu, H. Liu, and Y. Lung, “An Adaptive Multirate IEEE 802.11 Wireless LAN,”Proceedings of the 15th International Conference on Information Networking, p. 411,Jan. 2001.

[28] E. W. Zegura, M. H. Ammar, Z. Fei, and S. Bhattacharjee, “Application-Layer Anycasting: a Server Selection Architecture and Use in a Replicated Web Service,”IEEE/ACM Transactions on Networking (TON), VOL. 8, NO. 4, pp. 455–466, 2000.

[29] E. Zegura, M. Ammar, Z. Fei, and S. Bhattacharjee, “Application-layer Anycasting:a Server Selection Architecture and Use in a Replicated Web Service,” IEEE/ACM Transactions on Networking, VOL. 8, NO. 4, pp. 455–466, Aug. 2000.