臺灣博碩士論文加值系統

本研究的目的是實現在雲端計算系統上設計一個即時性網路視訊電話Video/Voice over IP (VVoIP)的應用程式。PC或Notebook經由web介面方式且使用以Authentication、Authorization、Accounting (AAA)管理機制登入雲端計算系統，透過雲端計算系統的VVoIP程式與另一位上線使用者做網路視訊電話方式的連線通話。Android行動裝置的使用者則經由Android Market下載及安裝我們發佈雲端的VVoIP App後，在Adobe AIR App的環境下進行雲端網路視訊通話。它比P2P方式網路視訊電話更具有幾項優點，首先使用者通話前不需事先得知對方IP位址，其次它將可以實現跨平台的網路視訊電話，並且VVoIP應用程式採用Real Time Messaging Protocol(RTMP)通訊協定來達成及時性的傳輸服務。

The objective of this study is to realize a real-time Video/Voice over IP (VVoIP) application implemented by a cloud computing server. PC and notebook users can access the remote server through the web, and log into the cloud computing system via the AAA (Authentication, Authorization, Accounting) management system. This way, any user can carry out an on-line call with another user through VVoIP application running on the cloud computing server. Mobile Android users can download the cloud VVoIP App from Market/Play Store, and conduct the VVoIP call under the Adobe AIR App environment. This technique outperforms P2P method for many reasons. First, the user need not know the other person’s IP before making the VVoIP call. Also, it can achieve cross-platform VVoIP, and the application uses Real Time Messaging Protocol (RTMP) to achieve immediate transmission of services.

Chapter 1. Introduction 1
Chapter 2. Literature Review 6
　　2.1 Windows Live Messenger 8
　　2.2 Yahoo! Messenger 10
　　2.3 Skype 12
　　2.4 LINE 14
　　2.5 Viber 16
　　2.6 Tango Video Calls 17
　　2.7 Function comparison for different products 18
Chapter 3. Research Method 20
　　3.1 Deploy the cloud host－Proxmox Virtual Environment 20
　　3.2 Build the cloud VVoIP environment 21
　　　　3.2.1 Create virtual machine and install Ubuntu 10.04 OS 21
　　　　3.2.2 Establish application servers in virtual machine 23
　　　　3.2.3 Video/voice server－Adobe Flash Media Server 25
　　3.3 Communication architecture in server as well as client 26
　　3.4 Phone operation procedure within cloud VVoIP 28
　　3.5 Set-up of development environment and deploy VVoIP application 31
Chapter 4. Experimental Results and Discussion 32
　　4.1 Experimental environment 32
　　4.2 Experimental results 34
　　　　4.2.1 Phone test between PCs 35
　　　　4.2.2 Phone test between PC and mobile device 37
　　　　4.2.3 Phone test between mobile devices 39
　　　　4.2.4 Off-site quality test 41
　　　　4.2.5 Simultaneous connection stress test 43
　　　　4.2.6 Power consumption estimate at Android mobile phone 46
　　　　4.2.7 Power consumption estimate at Personal Computer 49
　　　　4.2.8 System performance analysis 52
Chapter 5. Conclusion 59
References 61

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