臺灣博碩士論文加值系統

無線通訊技術在近年來的發展突飛猛進，各種通訊協定陸續制定，應用在不同的環境，讓人們可以隨時隨地享受溝通的樂趣。因此，整合各種通訊協定之特性以達到網路環境效能的提升，以滿足使用者不同的需求。
本文在WiMAX與Wi-Fi異質性Two tier網路架構下，提出幾種行動管理機制，使用者可以任意的在WiMAX與Wi-Fi區域漫遊，考量WiMAX與Wi-Fi系統之頻寬與阻絕率、斷話率，並針對傳輸資料的類型加以區別，做適當的行動管理，讓不同類型之使用者能得到適合的服務，兼顧費用與服務品質，以達到使用者最佳的效益。

Wireless communication technology has been in progress rapidly in the recent years. Each kind of communication protocols applied in the different environment was established one after another. People can enjoy the pleasure of communication every time and every where. Therefore, we integrate the characteristics of each communication protocol to promote efficient network to satisfy different kinds of user’s requirement.
This thesis is discussed under WiMAX and Wi-Fi heterogeneous two tier network architecture, and we propose several mobility management schemes. Users can roam in the area of WiMAX and Wi-Fi . We consider the network performance in terms of bandwidth , blocking and dropping probability in WiMAX and Wi-Fi systems. According to the above conditions, we propose a proper mobility management scheme. Therefore, different kinds of users can obtain the suitable service, with respect to the cost and quality to get best benefit.

第一章 導論.................................................1
1.1 前言.................................................2
1.2 WiMAX與Wi-Fi之由來...................................2
1.3 研究動機.............................................4
1.4 論文架構.............................................5
第二章 背景及相關研究.......................................6
2.1 WiMAX與Wi-Fi的PHY與MAC之差異.........................6
2.1.1 802.16與802.11 PHY的比較.....................6
2.1.2 802.16與802.11 MAC的比較.....................8
2.2 802.16e.............................................12
2.3 802.11g.............................................15
2.4 巨微細胞（Two tier）環境............................18
2.5 802.11 RTS/CTS 協定.................................19
2.6 802.11可得頻寬估算法則.............................21
第三章 系統架構............................................24
3.1 前言...................................................24
3.2 系統架構環境介紹.......................................25
3.3 機制與流程.............................................28
3.3.1 機制一........................................28
3.3.2 機制二........................................30
3.3.3 機制三........................................31
第四章 模擬結果與數據分析..................................34
4.1 前言...................................................34
4.2 數據討論...............................................36
4.2.1 第一部分:MN遭遇handoff次數比較................36
4.2.2 第二部份:Blocking、Dropping probability 比較..39
4.3 數據分析總結...........................................52
第五章 結論................................................53
5.1 結論...................................................53
5.2 未來研究方向...........................................53
參考文獻...................................................55

[1] IEEE Standard, “802.11e Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications. Amendment: Medium Access Control(MAC) Quality of Service (QoS) Enhancements,＂ Jan 2005.
[2] IEEE Standard,＂ 802.11 Part 11 : Wireless LAN Medium Access Control (MAC) and Physical Layer(PHY) specification＂, June 1997
[3] IEEE Standard ,“IEEE 802.11g， Part 11: Wireless LAN Medium Access Control(MAC) and Physical Layer(PHY) specifications
＂, IEEE Std 802.11g™-2003
[4] “IEEE 806.16e，Part 16: Air Interface for Fixed and Mobile
Broadband Wireless Access Systems＂， IEEE P802.16e/D12, October 2005
[5] Chuanxiong Guo, Zihua Guo, Qian Zhang, Wenwu Zhu,“A Seamless and Proactive End-to-End Mobility Solution for Roaming Across Heterogeneous Wireless Networks＂, Selected Areas in Communications, IEEE Journal JUNE 2004
[6] Qian Zhang, Chuanxiong Guo, Zihua Guo, and Wenwu Zhu,＂ Efficient Mobility Management for Vertical Handoff between WWAN and WLAN＂, IEEE Communications Magazine ， November 2003
[7] Cisco Systems, Inc.， “Capacity, Coverage, and Deployment Considerations for IEEE 802.11g ＂,White Paper 2003
[8] Wei Song, Hai Jiang, Weihua Zhuang, and Xuemin (Sherman) Shen, University of Waterloo,＂Resource Management for QoS Support in Cellular/WLAN Interworking＂ IEEE Network ， September/October 2005
[9] IEEE Standard “Wireless LAN Medium Access Control (MAC) and Physical Layer(PHY) specification＂， IEEE Std 802.11-1997
[10] Lila Dimopoulou, Georgios Leoleis, and Iakovos S. Venieris，＂ Fast Handover Support in a WLAN Environment: Challenges and Perspectives＂， IEEE Network ， May/June 2005
[11] Jing Nie, JiangChuan.Wen, Qi Dong, Zheng Zhou，＂ A Seamless Handoff in IEEE 802.16a and IEEE 802.1 In Hybrid Networks＂， Communications, Circuits and Systems, 2005. Proceedings. 2005 International Conference on， IEEE 2005.
[12] Antonio Iera , Antonella Molinaro ,Enrico Natalizio, and Salvatore Marano,＂ Call Management Based on the Mobile Terminal-Peak Velocity: Virtues and Limitations in a Two tier Cellular System＂， IEEE Transactions on vehicular technology, VOL. 52, NO. 4, JULY 2003
[13] Riaz Inayat, Reiji Aibara, Kouji Nishimura,＂ A Seamless Handoff for Dual-interfaced Mobile Devices in Hybrid Wireless Access Networks＂， Proceedings of the 18th International Conference on Advanced Information Networking and Application ，2004 IEEE
[14] Farhan Siddiqui, Sherali Zeadally,＂ Mobility management across hybrid wireless networks:Trends and challenges＂, Computer Communications,9 September 2005