跳到主要內容

臺灣博碩士論文加值系統

(3.235.227.117) 您好!臺灣時間:2021/07/28 01:43
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:林奕成
研究生(外文):Yi-Cheng Lin
論文名稱:利用修改過之SCTP維護多媒體品質
論文名稱(外文):The quality maintenance of real-time multimedia streaming using the modified SCTP
指導教授:蘇銓清
指導教授(外文):Chuan-Ching Sue
學位類別:碩士
校院名稱:國立成功大學
系所名稱:資訊工程學系碩博士班
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:2009
畢業學年度:97
語文別:中文
論文頁數:43
中文關鍵詞:串流控制傳輸協定多媒體串流多宿主
外文關鍵詞:Multi-homingSCTPMultimedia Streaming
相關次數:
  • 被引用被引用:0
  • 點閱點閱:157
  • 評分評分:
  • 下載下載:26
  • 收藏至我的研究室書目清單書目收藏:0
多媒體串流一般是透過傳輸層協定來傳遞,像是TCP或UDP,跟UDP協定做比較,TCP協定雖然可以保證資料的可靠性,但為了確保資料的完整性,所以增加了整體傳輸的時間。IETF(Internet Engineering Task Force)在2000年制定了一個新的傳輸層的通訊協定稱做SCTP (Stream Control Transmission Protocol),跟TCP協定一樣具有可靠的特性,但其又具有多宿主(multi-homing)的特性,SCTP改善了關連(association)的可靠度,當主要的傳輸路徑發生錯誤時可將資料切換到其它的路徑上傳遞。此外,SCTP在2004年提出了不完全可靠度傳輸(partial reliable)的延伸,稱為PR-SCTP,此協定可以設定訊息傳遞的存活時間,因此更適合用來傳遞即時的多媒體串流。
本論文提出結合多宿主和PR-SCTP的特性,當兩個端點間有多條路徑的情況下,會選擇一條當作主要的傳輸路徑和一條當作修復路徑來傳遞備援的資料。因為我們所傳遞的多媒體串流是MPEG-4的格式,所以備援的資料內容是對於影像撥放較重要的I-frame;最後,本研究主要是利用網路模擬工具NS-2,來比較我們的方法和原始的PR-SCTP傳遞多媒體串流的PSNR值,從模擬結果可以看出,我們的方法可以改善主要路徑上的封包遺失而導致影片品質下降的現象以及當主要路徑斷線的時候,可以藉由修復路徑上的備援資料來維持影片的品質。
Multimedia streaming is generally transmitted by the transport layer protocol, e.g., TCP and UDP. Compared to UDP, TCP protocol guarantees the reliability of data but increases overall transmission time to make sure the integrity of data. In 2000, IETF sets up a new transport layer protocol called SCTP. With the same reliability as TCP and the characteristics of multi-homing, SCTP enhances the stability of connection by switching data to other transmission paths when errors or losses occur in the main path. In addition, the partial reliable extension called PR-SCTP is added into SCTP in 2004, which is capable of setting the TTL(time to live) of data transmission. Therefore, it is more appropriate for real-time multimedia transmission.
The proposed mechanism combining the characteristics of multi-homing and PR- SCTP will choose a main transmission path and a repairing one to send back- up data when several paths are built between two endpoints. Because the format used in multimedia streaming is MPEG-4, the content of back-up data is just I-frame, which is most important for video playing. At last, the network simulation tool NS-2 is used to compare the proposed method with that of original PR-SCTP in multimedia transmission in terms of the PSNR values. From the simulation results, the loss of packets in main path will not lead to the decline of video quality and the lost data in the broken main path is successfully restored by the back-up data in the repair path, thus the quality of video is retained.
中文摘要 iii
Abstract iv
致 謝 vi
表目錄 viii
圖目錄 ix
第一章 簡介 1
1.1背景 1
1.2研究動機與目的 1
1.3論文組織架構 2
第二章 技術背景與相關文獻 3
2.1相關技術背景 3
2.1.1 SCTP介紹 3
2.1.1.1 SCTP特性 5
2.1.1.2 SCTP的資料傳輸 8
2.1.1.3 SCTP的路徑管理和錯誤偵測 13
2.1.2 PR-SCTP介紹 14
2.1.3 MPEG特性 16
2.2相關文獻探討 17
第三章 以維持串流品質為導向的串流控制傳輸協定 19
3.1提出的Frame Redundancy Stream Control Transport Protocols 19
3.2 FR-SCTP傳送端 20
3.3 FR-SCTP接收端 23
3.4 發送封包的時間點上 25
3.5 當主要傳輸路徑斷線後 27
第四章 模擬與分析 29
4.1 ns-2的介紹 29
4.2 Evalvid 30
4.3 模擬環境 31
4.4效能評估 34
4.4.1當網路在不同遺失率時 34
4.4.2調整Data Chunk大小 37
4.4.3當主要傳輸路徑斷線情況下 38
第五章 結論與未來工作 41
參考文獻 42
[1] D. Wu, Y. Hou, W. Zhu, Y.-Q. Zhang, and J. Peha, "Streaming Video over the Internet: Approaches and Directions" , IEEE Transactions on Circuits and Systems for Video Technology, March 2001.
[2] S. Blake et al., "An Architecture for Differentiated Services," IETF RFC 2475, Dec. 1998.
[3] International Telecommunications Union Study Group 17, URL: http://www.itu.int/ITU-T/studygroups/com17/index.asp, May 2003.
[4] DSL Forum Report, Global DSL Subscribers Now Total 73.4 Million, Website - http://www.dslforum.org
[5] R. Doverspike et al., "Designing a Reliable IPTV Network", IEEE Internet Computing, vol. 13, pp. 15-22, 2009
[6] Z. Lifen, S. Yanlei and L. Ju, "The Performance Study of Transmitting MPEG4 over SCTP", in the proc. of IEEE Int. Conf. Neural Networks & Signal Processing, pp. 1639-1642, December 2003.
[7] IETF RFC 2960: Stream Control Transmission Protocol (2000)
[8] D. Chiu and R. Jain, "Analysis of the Increase and Decrease Algorithms for Congestion Avoidance in Computer Networks", Computer Networks and ISDN Systems, vol. 1 no. 2, pp. 1-14, 1989.
[9] Stewart, R., Ramalho, M., Xie, Q., et al.: Stream Control Transmission Protocol (SCTP) Partial Reliability Extension. IETF RFC 3758 (2004)
[10] ISO CD11172-2: Coding of Moving Pictures and Associated Audio for Digital Storage Media at up to 1.5 Mbits/s, Nov. 1991. MPEG.
[11] Caro, A, Amer, P, Stewart, R, "Rethinking End-to-End Failover with Transport Layer Multihoming", Annals of Telecommunications 2006
[12] Grace, K.H., Pecelli, D., Amelia, J.D.: Improving Multi-homed SCTP Mobile Communication Performance. Technical Papers, The MITRE Corporation (2006)
[13] Qiao, Y., Fallon, E., Murphy, L., et al.: Performance Analysis of Multi-homed Transport Protocols with Network Failure Tolerance. IET Communications 5(2), 336–345 (2007)
[14] H. Wang, Y. Jin and W. Wang, "The performance Comparison of PRSCTP, TCP and UDP for MPEG-4 Multimedia Traffic in Mobile Network", in the proc. Of ICCT 2003, pp. 403-406.
[15] M. Molteni and M. Villari "Using SCTP with Partial Reliability for MPEG-4 Multimedia Streaming", BSDCon Europe 2002
[16] XU, C. et al. Comparative study of real-time multimedia transmission over multi-homing transport protocols. In: 11th IFIP/IEEE International Conference on Management of Multimedia and Mobile Networks and Services (MMNS), 2008. Springer LNCS (Lecture Notes in Computer Science), p. 64–76.
[17] J. Iyengar, K. Shah, P. Amer, and R. Stewart, "Concurrent multipath transfer using SCTP multihoming", presented at the SPECTS’04 Conf., San Jose, CA, Jul. 2004.
[18] The Network Simulation -ns-2 http://www.isi.edu/nsnam/ns/index.html
[19] J. Klaue, B. Rathke, and A. Wolisz, "Evalvid—a framework for video transmission and quality evaluation", in Proc. 13th Int. Conf. Modeling Techniques and Tools for Computer Performance Evaluation, Urbana, IL, Sep. 2003.
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
無相關期刊