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研究生:周承良
研究生(外文):Cheng-liang Zhou
論文名稱:多人虛擬環境中以使用者感受為導向之網路服務
論文名稱(外文):User-centric Network Service in a Multi-user Virtual Environment
指導教授:李秀惠李秀惠引用關係
指導教授(外文):Hsiu-Hui Li
學位類別:碩士
校院名稱:國立臺灣大學
系所名稱:資訊工程學研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2004
畢業學年度:92
語文別:中文
論文頁數:72
中文關鍵詞:多人虛擬環境系統
外文關鍵詞:MVE
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在多人虛擬環境(MVE) 中縮減網路訊息傳輸量一直是釵h研究關心的議題,而本篇論文從『使用者感受』的角度來檢視在此環境中如何篩選不必要的訊息傳遞,目標是盡量讓系統當中的使用者滿意。在本篇論文中將會提出一套評估使用者滿意度的基本模型,模型中評估滿意度的指標是以使用者在系統中活動的狀態以及其硬體的能力為參考。我們也實作一套控制系統依據此模型來減少網路訊息傳輸量,並且在不同的環境下對此系統做實驗及觀察。最後我們會針對實驗數據作分析和討論,然後提出一些現有的問題及未來的工作。
Multi-user virtual environment (MVE) is a popular topic attracting much research focus in recent years. Reducing the amount of information transmitted over the network for such an environment is a crucial task for good system performance. This thesis focuses on how to screen unnecessary information transmission in such a system from a user''s point of view. We will try to satisfy as many users as possible with a just-enough strategy. We propose a set of network service models to assess user''s satisfaction according to the user''s activity and hardware capability. We have implemented a control system with these models to reduce the amount of network transmission and conducted experiments to observe the system performances under different exeprimental settings. Finally, we analyze the results of the experimental data and discuss them with our possible future extensions.
Abstract Ⅰ
中文摘要 Ⅱ
第一章. 簡介 1
1.1 研究動機 1
1.1.1 多人虛擬實境系統中的問題 2
1.2 研究目的 4
1.3 論文結構 5
第二章. 相關研究 6
2.1 多人虛擬環境系統分析介紹 6
2.2 多人虛擬環境系統中的通訊連線 7
2.2.1 整體連線架構模型 7
2.2.2 網路傳輸相關 8
2.3 通訊連線相關問題的解決方案 9
2.4 系統分類整理 12
2.5 Qos (Quality of Service) 基本概念介紹 13
第三章. 問題探討與系統規劃 15
3.1 多人虛擬環境系統(multi-user virtual environment) 問題探討 15
3.1.1 何謂完美系統? 15
3.1.2 不完美卻令人滿意的系統 16
3.2 滿意度與服務品質之關聯性及服務品質調整方式 16
3.2.1 探討滿意度與系統所給予服務之關聯性 16
3.2.2 思考服務品質調整方式 19
3.3 規劃一套能針對使用者感受和能力以及server 的現況提供不同品質服務的系統 21
第四章. 系統設計及實作 25
4.1 《IMCTRL 》整體系統設計 25
4.1.1 系統執行方式設計 25
4.1.2 各個模組弁鈳]計 28
4.1.3 訊息格式及雜項弁鈳]計 35
4.2 滿意度模型、服務調整策略及公式 36
4.2.1 滿意度模型的制定 36
4.2.2 client 服務參數初始值與Server 升降級機制 40
第五章. 實驗討論與分析 45
5.1 實驗開始 45
5.1.1 實驗環境 45
5.1.2 實驗方式與結果 48
5.2 實驗討論 64
5.2.1 實驗結果討論 64
5.2.2 系統目前問題探討 65
六. 結論與未來工作 67
6.1 結論 67
6.2 未來工作 67
參考文獻 69
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