臺灣博碩士論文加值系統

IoT環境中包含許多會移動的物件，諸如：人、動物、車輛、大眾運輸、無人偵察機等等。為能使這些具有移動性的節點在移動時能夠持續存取網路資源，需要一個有效率的移動性管理方法（Mobility Management Scheme）。近年來，PMIPv6（Proxy Mobile IPv6）已成為IoT環境中解決移動性管理問題的要角。目前已經有許多研究將PMIPv6使用在醫療照護、智慧型運輸系統、智慧家庭等應用中。PMIPv6其Network-Based的特性使得移動節點不需參與以及了解移動性管理協定的詳細運作過程，藉而減少移動節點控制訊息的發送與電力消耗。由於這個特性，使得PMIPv6更適合使用在未來移動節點資源受限的環境中。然而PMIPv6本身屬於Local Mobility，限制了移動節點僅能在單一的PMIPv6 Domain中移動，這個問題無法滿足IoT提供無所不在（Ubiquitous）服務的需求。因此IETF所提出PMIP-MIP Interaction，針對PMIPv6無法提供Global Mobility進行改善。然而PMIP-MIP Interaction雖然可支援Global Mobility，但其卻存在控制訊息過多的缺點。此外由於IoT環境中可能存在許多由人或交通工具為中心而一起移動的群組節點，PMIPv6與PMIP-MIP Interaction皆尚未考慮這項議題。因此本文提出一個Network-Based、Global Mobility與支援Group Mobility的方法，並與一些著名的移動性管理方法進行效能分析。分析結果顯示，本文提出的方法可減少換手延遲時間、降低控制訊息發送量，進而減少移動節點的電力消耗，因此更適合使用在未來IoT資源受限的移動裝置上。

There are numerous mobile objects in the future IoT environment, such as human being, animals, vehicles, and public transportations. It is critical to design an efficient mobility management scheme to provide the mobile nodes with seamless network usage. In the recent years, PMIPv6 (Proxy Mobile IPv6) has become a key role to solve the problem of mobility management in IoT. There have been many researches apply PMIPv6 in ITS (Intelligent Transportation System), healthcare, and smart home applications. The most significant feature of PMIPv6 is network-based mobility management that make mobile nodes do not need to involve and aware of the mobility management process. Consequently, the number of control messages and power consumption of the mobile nodes are remarkably reduced. With this feature, PMIPv6 is more suitable for the resource constrain environment. However, PMIPv6 is designed based-on local mobility management that limits the mobile nodes moving around different PMIPv6 domains. This problem is detrimental to supply ubiquitous services in IoT. In spite of PMIP-MIP Interaction which proposed by IETF attempts to solve the local mobility problem of PMIPv6, it causes many unnecessary control messages. Moreover, in ITS, a group of mobile nodes may move together with the human or transportations. Therefore, this thesis proposed a network-based mobility management which supports global mobility and group mobility. As shown in the performance analysis, the mobility management scheme proposed in this thesis can shorten handover delay, lessen control messages, and reduce energy consumption.

摘　要 I
Abstract II
目　錄 III
圖　目　錄 V
表　目　錄 VIII
第一章　緒論 1
第二章　相關研究 3
2.1. 主機為基礎與網路為基礎的移動性管理方法 3
2.2. 區域與全域移動性 3
2.3. 群組移動性 4
2.4. 相關移動性網路管理協定 5
2.4.1. Mobile IP 5
2.4.2. Mobile IP + NEMO 6
2.4.3. Proxy Mobile IPv6 7
2.4.4. Proxy Mobile IPv6 + NEMO 9
2.4.5. PMIP-MIP Interaction 10
2.5. 相關移動性網路管理方法之網路架構 13
2.5.1. Mobile IP 13
2.5.2. Mobile IP + NEMO 14
2.5.3. Proxy Mobile IPv6 14
2.5.4. Proxy Mobile IPv6 + NEMO 15
2.5.5. PMIP-MIP 15
第三章　研究方法 17
3.1. 使用場景 17
3.2. 本論文方法介紹 18
3.2.1. 系統模型 18
3.2.2. 網路架構 20
3.2.3. 訊息格式 23
3.2.4. 相關表格 24
3.2.5. 尋找移動節點機制 26
3.2.6. 使用者移動之換手機制 29
3.2.7. 列車移動之換手機制 32
第四章　效能分析 36
4.1. 實驗環境與參數設定 36
4.2. 列車移動之換手延遲時間 40
4.3. 換手控制訊息數量 50
4.4. 節點電力消耗量 56
4.5. 資料傳輸延遲時間 65
第五章　結論 68
參考文獻 69

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