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研究生： 王弘毅
Hong-Yi Wang
論文名稱： GAP:基於軟體定義霧端輔助的車載網路即時內容傳輸方法
GAP: Seamless Real-time Content Delivery in SDFog Assisted VANET
指導教授： 黃琴雅
Chin-Ya Huang
口試委員:
學位類別： 碩士
Master
系所名稱： 資訊電機學院 - 電機工程學系
Department of Electrical Engineering
論文出版年： 2017
畢業學年度： 106
語文別： 中文
論文頁數： 134
中文關鍵詞： 軟體定義網路 、車載網路 、霧端運算 、內容傳輸 、移動性 、低延遲
外文關鍵詞： SDN, VANET, Fog Computing, Content Delivery, Mobility, Low latency
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    • 建置一支援各種即時串流服務的無線網路是近年來熱門的議題。本論文基於SDFog提出一個無縫內容資料傳輸方法GAP，來讓車子內的使用者在移動的過程中，能夠平順無缝持續享有優質的資訊服務，特別是即時視訊串流服務。

    To efficiently support real-time streaming is still a critical topic with the development of mobile technologies. To achieve this goal, we propose a seamless real-time content delivery method called GAP, based on the SDFog framework in this thesis. With GAP, mobile users in the moving vehicle can obtain better streaming quality.

    摘要 i Abstract ii 致謝 iii 目錄 iv 圖目錄 vii 表目錄 xi 第一章、緒論 1 1-1 研究背景 1 1-2 研究動機 2 第二章、文獻探討 7 2-1 雲端運算 7 2-2 霧端運算 9 2-3 車載網路 11 2-4 軟體定義網路 12 2-5 伺服器負載平衡 13 2-5-1 依序循環演算法(Round-Robin Algorithm) 14 2-5-2最少連線數演算法(Least Connections Algorithm) 14 2-5-3最小-最小演算法(Min-Min Algorithm)與最大-最小演算法(Max- Min Algorithm) 15 2-6傳播延遲的計算 15 2-7 移動管理 17 第三章、系統設計與假設 19 3-1 系統架構 19 3-2 系統的運作行為與流程 22 3-2-1系統的運作行為 22 3-2-2 系統的流程 23 3-3 系統環境設置與假設 25 第四章、GAP方法與系統整合實現 27 4-1 符號說明 27 4-2 控制器運作流程 28 4-3 控制器處理訊息方法 30 4-3-1 Greedy based Packet Scheduling Algorithm 30 4-3-2 ARP Broadcast Reduction Mechanism 35 4-3-3 Prediction based Handoff Support Mechanism 39 4-4 系統實現 42 4-4-1系統環境介紹 42 4-4-2系統場景介紹與模擬參數的設定 44 4-4-3系統實現成果 46 4-4-4 系統實現細節 57 第五章、實驗模擬結果與討論 59 5-1 實驗參數計算 59 5-2 實驗模擬環境與參數設定 60 5-3 模擬成果 62 5-3-1 控制器處理時間 62 5-3-2 移動性 63 5-3-3 霧端伺服器的負載 69 5-3-4 ABR機制的效能 82 5-3-5 PHS機制的效能 84 5-3-6綜合效能的評估 92 第六章、結論與未來目標 110 第七章、參考文獻 112 附錄一 117

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