(3.239.56.184) 您好!臺灣時間:2021/05/13 12:01
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果

詳目顯示:::

: 
twitterline
研究生:陳毅鴻
研究生(外文):Yi-HungChen
論文名稱:使用同儕網路支援數位廣播系統的封包修補
論文名稱(外文):Using Peer to Peer Networks to Support Packet Loss Repair for Digital Broadcasting System
指導教授:謝錫堃謝錫堃引用關係
指導教授(外文):Ce-Kuen Shieh
學位類別:碩士
校院名稱:國立成功大學
系所名稱:電腦與通信工程研究所
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:2013
畢業學年度:101
語文別:英文
論文頁數:37
中文關鍵詞:同儕網路分散式雜湊表數位視訊廣播
外文關鍵詞:Peer-to-peerDistributed Hash TableDVB-T
相關次數:
  • 被引用被引用:0
  • 點閱點閱:134
  • 評分評分:系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔
  • 下載下載:6
  • 收藏至我的研究室書目清單書目收藏:0
由於現在有越來越多的人在車上收看數位廣播的串流影片,但是在車上收看因為移動的關係,所以常常會經過訊號接受不佳或者是受到建築物遮蔽而影響收訊的區域。因為訊號接受不佳而產生封包遺失的問題,當發生封包遺失那麼使用者的收看品質就會受到影響。我們希望讓使用者透過加入同儕網路而可以取回掉落的封包,因為只透過網路取回少部分的封包而不是整個串流影片,所以也可以降低網路的負擔。目前已經有很多方法在處理封包修補的問題,當中也很不少提出透過同儕網路來實現,我們參考並分析他們的策略並提出一套有效的封包儲存機制。
在本篇論文中,我們提出了一套階層式儲存機制,使用者可以透過同儕網路取回掉的封包,但也必須負責存取部分串流影片。我們的機制是控制影片封包的儲存份數,而儲存的份數是參考現在使用者數的多少來決定。這樣可以降低某些封包複製的份數過多,而某些複製份數太少的問題。如此一來就可以減少不必要的儲存以及降低使用者的負擔。
Due to more and more viewers using DVB-T to watch live streaming in vehicle, watching live streaming in vehicle will cross weak signal strength areas or signal blocked by high building. Packet loss problem occurs when the signal strength is weak and affects the video quality. Viewers will join the p2p networks for packet loss repair. Because the source of video streaming is from DVB-T and just request for lost packet from p2p network, our solution can reduce the usage of network bandwidth. In recently years, there are many strategies researching into packet loss repair problem. Using p2p network as the repair system is a hot issue. We reference and analyze their strategies, and then propose an efficient caching mechanism.
In this thesis, we propose a Hierarchical Caching Mechanism that viewers should join the p2p network and cache partial of video streaming. They can repair the lost packet from the p2p network. In our mechanism, we can dynamic control chunk replications according to the number of peers in the p2p network. It is used to avoid number of some video chunks’ replication is high and some low.
Figures VI
Tables VII
Chapter1 Introduction 1
Chapter 2 Background and Related Work 5
2.1 Digital Video Broadcasting 5
2.2 P2PSIP RELOAD 7
2.3 Related Work 9
Chapter 3 Proposed Mechanism 13
3.1 User Scenario 13
3.2 System Overview 14
3.3 Hierarchical Caching Mechanism 15
3.3.1 Root Server 17
3.3.2 Caching Selector 19
3.4 Chunk Retrieval 20
Chapter 4 Implementation 21
4.1 Manager Peer Architecture 21
4.1.1 Operations of Manager Peers 23
4.2 Peer Architecture 27
Chapter 5 Performance Evaluation 30
5.1 Experiment Configuration 30
5.2 Experiment Result 31
Chapter 6 Conclusion and Future Work 35
References 36
[1]Ulrich H. Reimers, “DVB—The Family of International Standards for Digital Video Broadcasting, Proceedings of the IEEE 2006.
[2]Uwe Ladebusch and Claudia A. Liss, “Terrestrial DVB (DVB-T): A Broadcast Technology for Stationary Portable and Mobile Use, Proceedings of the IEEE 2006.
[3]Zhi Li, Xiaoqing Zhu, Ali C. Begen and Bernd Girod, “Peer-Assisted Packet Loss Repair for IPTV Video Multicast, Proc. ACM Multimedia 2009.
[4]Jian J.Ma and Xi Tu Cheng, “System and Method for using a Peer-to-Peer Mechanism to Repair Broadcast Data in Wireless Digital Broadcast Networks, US Patent 2008.
[5]Yung-Tsung Weng, Ce-Kuen Shieh, Tzu-Chi Huang and Yu-Ben Miao, “Using P2P Networks to Repair Packet Losses in Digital Video Broadcasting Systems, IEEE 17th International Conference on Parallel and Distributed Systems (ICPADS), 2011.
[6]Jeonghun Noh and Sachin Deshpande, “Pseudo-DHT: Distributed Search Algorithm For P2P Video Streaming, Tenth IEEE Internation Symposium on Multimedia, 2008.
[7]Sachin Deshpande and Jeonghun Noh, “P2TSS: Time-Shifted and Live Streaming of Video in Peer-to-Peer Systems, IEEE International Symposium on Multimedia, 2008.
[8]Jeonghun Noh and Sachin Deshpande, “Distributed search methods for time-shifted and live peer-to-peer video streaming, US2009/0116640.
[9]Resource LOcation And Discovery (RELOAD) Base Protocol draft-ietf-p2psip-base-22, http://tools.ietf.org/html/draft-ietf-p2psip-base-22
[10]A SIP Usage for RELOAD draft-ietf-p2psip-sip-08, http://tools.ietf.org/html/draft-ietf-p2psip-sip-08
[11]Morris R, Liben-Nowell D., Karger D.R., Kaashoek M.F., Dabek, F. and Balakrishnan H., “Chord: a scalable peer-to-peer lookup protocol for Internet applications, IEEE/ACM Transactions on Networking, 2003.
[12]Y. Guo, K. Suh, J. Kurose, and D. Towsley, “P2Cast: Peer-to-Peer Patching Scheme for VoD Service, Proc. 12th Int’l Conf. World Wide Web (WWW), 2003.
[13]T. Do, K. Hua, and M. Tantaoui, “P2VoD: Providing Fault Tolerant video-on-Demand Streaming in Peer-to-Peer Environment, Proc. IEEE Int’l Conf. Comm. (ICC), 2004.
[14]Official Digital Video Broadcasting website, http://www.dvb.org/
[15]US Secure Hash Algorithm 1 (SHA1), http://tools.ietf.org/html/rfc3174
[16]Chord (peer-to-peer), http://en.wikipedia.org/wiki/Chord_(peer-to-peer)
[17]Industrial Technology Research Institute of Taiwan, http://www.itri.org.tw/
連結至畢業學校之論文網頁點我開啟連結
註: 此連結為研究生畢業學校所提供,不一定有電子全文可供下載,若連結有誤,請點選上方之〝勘誤回報〞功能,我們會盡快修正,謝謝!
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top
系統版面圖檔 系統版面圖檔