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系統識別號 U0026-0812200914153796
論文名稱(中文) 應用在無線都會寬頻網路中之點對點多媒體傳輸技術
論文名稱(英文) A P2P-based IPTV Transmission Mechanism in WiMAX Networks
校院名稱 成功大學
系所名稱(中) 電腦與通信工程研究所
系所名稱(英) Institute of Computer & Communication
學年度 96
學期 2
出版年 97
研究生(中文) 楊皓宇
研究生(英文) Hao-yu Yang
學號 q3695102
學位類別 碩士
語文別 英文
論文頁數 28頁
口試委員 口試委員-焦惠津
口試委員-歐家和
指導教授-斯國峰
召集委員-林志敏
中文關鍵字 換手  無線都會寬頻網路  多媒體傳輸技術  點對點 
英文關鍵字 WiMAX  Handoff  Multicast  IPTV  P2P 
學科別分類
中文摘要 在無線都會寬頻網路系統中,使用者通常都不會固定的停留在某一地點,而是自由的移動,因此基地台需提供移動式的連接服務。針對這項特性,本論文提出了一個分散式的點對點多媒體傳輸技術,可以在無線都會寬頻網路的環境中,提供大量使用者欣賞多媒體節目。這項技術可以自動的排程一些移動性較低的使用者(稱為“種子”)來幫助系統傳輸,當有使用者因為故障或是換手造成中斷時,這項技術可以讓其他的使用者盡量維持在最好的觀賞品質,並且能盡快修復損失的效能。本論文使用了ns-2來驗證所提出的技術,實驗結果顯示包括影像品質以及系統穩定度都有很好的表現。
英文摘要 In a WiMAX system, users typically do not stay in fixed locations. They can move freely so the base stations providing connection service are changed sometimes. An
efficient and fault-tolerant scheme for supporting services is thus necessary. This thesis describes distributed P2P-based IPTV mechanism for scalable video streaming service in WiMAX systems. The mechanism can automatically schedule some nodes (seeds) that help for transmission based on the current topology. The mechanism is also able to
reconstruct connections if handoff or node failure occurs. The IPTV mechanism has been evaluated using ns-2 simulator. The results show that both quality of video streaming
and system reliability are improved.
論文目次 1 Introduction 1
2 Related Work 4
2.1 WiMAX 4
2.2 Previous Works 5
3 Mobility Model 7
4 Transmission Mechanism 11
4.1 Assumptions 11
4.2 System Model 12
4.2.1 Central Content Server 12
4.2.2 Seeds 13
4.2.3 Normal Nodes 13
4.2.4 System Overview 13
5 Performance Evaluation 17
5.1 Simulation Environment 17
5.2 Simulation Results 18
6 Conclusion and Future Work 23
6.1 Conclusion 23
6.2 Future Work 23
References 25
Vita 28
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