近年來的網路通訊技術朝著ALL IP Network的方向發展，透過IP協定將大多數的通訊網路整合成一個可以彼此連通的通訊網路，提供使用者可以自由選擇不同無線通訊技術的裝置連結至網際網路。除此之外，新一代的無線通訊技術所能提供的連線頻寬及通訊品質也較以往的通訊技術來得更加優秀，因此有越來越多的使用者選擇使用無線通訊技術連結至網際網路，進而也改變了人們對於網路存取的習慣，除了不再被限制在固定的場所連結網路，更衍生出對於漫遊在不同無線網路之間需求。

如何確保連線不同無線網路之間漫遊中斷以及服務品質的保證則是目前最受關注的議題。本文提出一個階層式預先資源預留的機制，採用階層式行動網路區域註冊及預先資源預留策略。當行動節點在無線網路進行通訊時，透過階層式區域註冊，降低訊息交換及資源預留所造成的網路資源所造成的資源浪費，進而提高網路資源使用效率；並預先於即將可能進入的無線網路中進行預先資源預留，將在原網路的服務品質保證延續至新的網路之中，進而達到具服務品質保證的無接縫無線網路。

The network communication technology has been focus on "ALL IP Network" in this few years. Most communication networks have been integrated into the interconnected network via IP protocol. The new generation wireless technology can provide bandwidth and communication quality better than the previous. More and more users adopt wireless communication technology to connect to Internet. There would be no need to restrict users to stay in somewhere for communication requirements. People could roam anywhere, anytime and any device.

The most important issue is to ensure the smooth roaming and QoS guarantee in the different wireless networks. This paper has proposed a method of hierarchical advance resource reservations - (Seamless Wireless Resource Reservation Protocol, SW_RSVP). SW_RSVP utilized hierarchical region registration of mobile network and advance resource reservations policy. By hierarchical registering, the mobile nodes could communicate with each others. It will lower the cost of message exchange and resource reservations. A mobile node could reserve network resource before it accesses them. Also, the QoS guarantees can be extended to different networks to achieve a seamless wireless network environment.

Finally, we will give some bright simulation results to prove the SW_RSVP works well.

第一章　緒論 1
1.1 研究背景及動機 1
1.2 研究目的 3
第二章　文獻探討 4
2.1 Internet Protocol Version 6 5
2.1.1 IPv6的改進 6
2.1.2 IPv6 General Header format 7
2.1.3 IPv6 Extension Headers Format 11
2.1.4 IPv4 Header differences with IPv6 Header 15
2.1.5 IPv6 Address 16
2.2 Mobile IP 17
2.2.1 Mobile IPv4 17
2.2.2 Mobile IPv6 23
2.3 資源保留協定(Resource Reservation Protocol, RSVP) 26
2.3.1 RSVP Tunnel 30
2.3.2 行動資源保留協定Mobile Resource Reservation Protocol 31
2.3.3 階層式行動資源保留協定Hierarchical MRSVP 33
2.3.4 Pointer Forwarding 36
第三章　研究方法 37
3.1 SW_RSVP系統架構 40
3.2 SW_RSVP控制訊息 43
3.2.1 控制訊息之定義 43
3.2.2 控制訊息之描述 47
3.3 SW_RSVP執行機制 48
3.3.1行動節點上預先資源保留之機制 49
3.3.2閘道外部代理人/通訊節點上預先資源保留之機制 51
3.4 SW_RSVP執行流程 53
3.4.1 建立Passive RSVP流程 53
3.4.2 區域換手流程 59
3.4.3 跨區域換手流程 65
第四章　效能分析 71
4.1 資源保留成本分析 73
4.2 服務品質保證延伸時間分析 77
第五章　結論 81
第六章 未來工作 82
參考文獻 83

1.Anup Kumar Talukdar, B. R. Badrinath, Arup Acharya, MRSVP: a resource reservation protocol for an integrated services network with mobile hosts, Wireless Networks, 7(1) (2001) 5-19.
2.A. Terzis, J. Krawczyk, J. Wroclawski, L. Zhang, RSVP Operation Over IP Tunnels, IETF RFC 2746, (2000).
3.C. Perkins, IP Mobility supportforIPv4, IETF RFC 3344, (2002).
4.Cheng Wei Lee, Li Ming Chen, Meng Chang Chen, Yeali Sunny Sun, A Framework of Handoffs in Wireless Overlay Networks Based on Mobile IPv6, Selected Areas in Communications, 23(11) (2005) 2118-2128.
5.Chien-Chao Tseng, Gwo-Chuan Lee, Ren-Shiou Liu, Tsan-Pin Wang, HMRSVP: a hierarchical mobile RSVP protocol, Wireless Networks, 9(2) (2001) 467-472.
6.Chuda Liu, Depei Qian, Yi Liu, Yanping Li, Caiyuan Wang, RSVP Context Extraction in IP Mobility Environments, Vehicular Technology Conference, (2006) 756-760.
7.D. Johnson, C. Perkins, J. Arkko, Mobility support in IPv6, IETF RFC 3775, (2004).
8.E. Fogelstroem, A. Jonsson, Ericsson, C. Perkins, Mobile IPv4 Regional Registration, IETF RFC 4857, (2007).
9.Gwo-Chuan Lee, Tsan-Pin Wang, Chien-Chao Tseng, Resource reservation with pointer forwarding schemes for the mobile RSVP, IEEE Communications Letters, 5(7) (2001) 298-300.
10.Hongseok Jeon, Jonghwa Yi, Performance Analysis of Mobile RSVP and Hierarchical Mobile RSVP, Asia-Pacific Conference Communications, (2006) 1-5.
11.Hui-Juan Yao, Geng-Sheng Kuo, An Integrated QoS-Aware Mobility Architecture for Seamless Handover in IEEE 802.16e Mobile BWA Networks, Military Communications Conference, (2006) 1-7.
12.Jui-Tang Wang, Jen-Shun Yang, Chien-Chao Tseng, An intelligent agent-based mobile resource reservation scheme, Parallel and Distributed Systems, (2005) 737-742.
13.Kae Hsiang Kwong, Pang Leang Hiew, A Seamless Handover Scheme for RSVP over 3G Networks, Wireless Pervasive Computing, (2006) 1-5.
14.Nen-Chung Wang, Jyh-Woei Jiang, Extending RSVP for QOS Support in Heterogeneous Wireless Networks, International Conference Communication systems, (2006) 1-5.
15.Perkins. C.E., Mobile IP, Communications Magazine, 40(5) 2003 66-82.
16.R. Braden, L. Zhang, S. Berson, S. Herzog, and S . Jamin, Resource reSerValion Protocol (RSVP) version 1: functional specification, IETF RFC 2205, (1997).
17.S. Deering, R. Hinden , Internet Protocol, Version 6 (IPv6) Specification, IETF RFC 2460, (1998).
18.Sarantis Paskalis, Alexandros Kaloxylos, Evangelos Zervas, Lazaros Merakos, An efficient RSVP-Mobile IP Interworking Scheme, Mobile Networks and Applications, 8 (3) (2003) 197-207.
19.Shenoy. N., Montalvo. R., A Framework for Seamless Roaming across Cellular and Wireless Local Area Networks, Wireless Communications, 12(3) (2005) 50-57.
20.Wooseong Kim, Hongseok Jeon, Advanced Resource Reservation using PAR-SIP for Real-time Multimedia Communication, Vehicular Technology Conference, (2006) 324-328.
21.Xio Gao, Gang Wu, Miki. T., End-to-End QoS Provisioning in Mobile Heterogeneous Networks, Wireless Communications, 11(3) (2004) 24-34.
22.Ye Min-hua, Liu Yu, Zhang Hui-min, The Mobile IP Handoff between Hybrid Networks, Personal Indoor and Mobile Radio Communications, 1 (2002) 265-269.
23.Ye Min-Hua, Zhang Ying, Zhang Hui-Min, Liu Yu, A modified HMRSVP scheme, Vehicular Technology Conference, (2003) 2779-2782.
24.Yilin Song, Yi Sun; Min Liu, Dutkiewicz, E., Comparative analysis of resource reservation cost for different RSVP extension schemes in mobile environments, Communications and Information Technologies, (2007) 1331-1336.