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研究生： 李柏青
Po-ching Li
論文名稱： 在 IEEE 802.11e 無線網路傳輸可調性視訊之跨層機制設計
Improving Scalable Video Transmission over IEEE 802.11e through a Cross-layer Architecture
指導教授： 陳省隆
Hsing-lung Chen
口試委員: 吳乾彌
Chen-mie Wu
陳郁堂
Yie-tarng Chen
莊博任
Po jen Chuang
學位類別： 碩士
Master
系所名稱： 電資學院 - 電子工程系
Department of Electronic and Computer Engineering
論文出版年： 2007
畢業學年度： 95
語文別： 中文
論文頁數： 30
中文關鍵詞： 可調性視訊編碼 、IEEE 802.11e 、可調性視訊傳輸
外文關鍵詞： cross-layer design
相關次數： 點閱：213  下載：1 
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    • Joint Video Team (JVT) 針對 H.264/AVC提出了可調性視訊編碼 (Scalable Video Coding, SVC) 的修正草案，H.264/SVC。經過H.264/SVC 編碼後的視訊，可分成與 H.264/AVC 相容的基礎層與具備可調性的增強層。可調性視訊能讓不同的用戶端，依據本身的狀況或網路的頻寬獲得所需的視訊品質。

    本篇論文針對 H.264/SVC在 IEEE 802.11e 傳輸的情況進行探討，並提出結合網路摘要層 (Network Abstraction Layer) 與 IEEE 802.11e 媒介存取控制層的跨層傳輸機制 (Cross-layer Arch.)，依據可調性視訊封包的重要性提供差異性服務。網路模擬器 Qualnet 4.0 模擬的結果，證明我們所提出的方法可提供較佳的視訊品質。

    The scalable extension of H.264/AVC, called H.264/SVC, is a current standardization project of Joint Video Team (JVT). An encoded SVC bitstream consists of an H.264/AVC-compatible base layer and one or more scalable enhance layers. In order to meet requirements of various clients, some scalable enhance layers can be truncated.

    This thesis focuses on the investigation of H.264/SVC transmission over IEEE 802.11e through a cross-layer architecture. The cross-layer architecture, which interacts Network Abstraction Layer and IEEE 802.11e MAC layer, provides differentiation services according to the importance of scalable video packets. The simulations are conducted with Qualnet 4.0. The simulation results show that our approach provides better video quality.

    第一章 緒論 1 1.1 研究背景 1 1.2 研究動機與目標 3 1.3 論文架構 4 第二章 相關研究 5 2.1 H.264/MPEG-4 SVC可調性修正草案 5 2.2 IEEE 802.11e 無線網路 8 2.3 跨層視訊傳輸 10 第三章 跨層可調性視訊傳輸機制 11 3.1 SVC 視訊編碼層與網路摘要層 11 3.2 IEEE 802.11e 媒介存取層 14 3.3 對應演算法 (Mapping Algorithm) 15 第四章 模擬結果與數據分析 16 4.1 可調性視訊傳輸模擬架構 16 4.2 模擬環境與參數設定 18 4.3 模擬結果與分析 20 第五章 結論與未來展望 27

    [1] IEEE Std. 802.11g 2003, Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, Supp. IEEE Std. 802.11g, 2003.
    [2] Draft Std. 802.11n, Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: Amendment: Enhancements for Higher Throughput, IEEE Draft Std. P802.11n/D2.00, Feb. 2007.
    [3] ITU-T and ISO/IEC JTC 1, “Advanced Video Coding for Generic Audiovisual Services”, ITU-T Recommendation H.264 and ISO/IEC 14496-10 (MPEG4-AVC), Version 1: May 2003, Version 2: Jan. 2004, Version 3: Sep. 2004, Version 4: July 2005.
    [4] J. Ostermann, J. Bormans, P. List, D. Marpe, M. Narroschke, F. Pereira, T. Stockhammer, and T. Wedi, “Video coding with H.264/AVC: tools, performance, and complexity”, IEEE Circuits and Systems Magazine, vol. 4, no. 1, pp. 7-28, 2004.
    [5] ITU-T and ISO/IEC JTC 1, “Generic Coding of Moving Pictures and Associated Audio Information – Part 2: Video”, ITU-T Recommendation H.262 and ISO/IEC 13818-2 (MPEG-2 Video), Nov. 1994.
    [6] J. Golston, D. Member, and A. Rao, “Video Compression: System Trade-Offs with H.264, VC-1 and Other Advanced CODECs”, TEXAS INSTRUMENTS White Paper, Aug.2006.
    [7] ITU-T, “Video coding for low bit rate communication”, ITU-T Recommendation H.263, Version 1: Nov. 1995, Version: Jan. 1998, Version 3: Nov. 2000.
    [8] ISO/IEC JTC 1, “Coding of audio-visual object – Part 2: Visual”, ISO/IEC 14492-2 (MPEG-4 Visual), Version 1: Apr. 1999, Version 2: Feb. 2000, Version 3: May. 2004
    [9] T. Wiegand, G. Sullivan, J. Reichel, H. Schwarz, M. Wien (eds.), “Joint Draft 9 of SVC Amendment”, Marrakech, Morocco, Jan. 2007.

    [10] H. Schwarz, D. Marpe, and T. Wiegand, “SNR-Scalable Extension of H.264/AVC”, IEEE ICIP 2004, Singapore, Oct. 2004.
    [11] H. Schwarz, D. Marpe, T. Schierl, and T. Wiegand, “Combined Scalability Support for the Scalable Extension of H.264/AVC”, IEEE ICME 2005, Amsterdam, The Netherlands, July 2005.
    [12] H. Schwarz, D. Marpe, and T. Wiegand, “Overview of the Scalable H.264/MPEG4-AVC Extension”, IEEE ICIP 2006, Atlanta, GA, USA, Oct. 2006.
    [13] JSVM 8 Reference Software, JVT-U202, Hangzhou, China, Oct. 2006.
    [14] Qualnet 4.0. http://www.scalable-networks.com.
    [15] IEEE Std. 802.11e-2005, Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications. Amendment 8: Medium Access Control (MAC) Quality of Service Enhancements, IEEE Std 802.11e, Sep. 2005.
    [16] M. van Der Schaar and S. N. Sai, “Cross-layer Wireless Multimedia Transmission: Challenges, Principles, and New Paradigms”, IEEE Wireless Communications [see also IEEE Personal Communications], Vol. 12, no. 4, pp. 50-58, 2005.
    [17] A. Ksentini, M. Naimi, and A. Gueroui, “Toward an Improvement of H.264 Video Transmission over IEEE 802.11e through a Cross-layer Architecture”, IEEE Communications Magazine, Vol. 44, no. 1, pp. 107-114, 2006.
    [18] A. Ksentini, A. Gueroui, and M. Naimi, “Improving H.264 Video Transmission in 802.11e EDCA”, IEEE ICCCN 2005, San Diego, USA 2005.
    [19] Y. K. Wang, M. M. Hannuksela, S. Pateux, A. Eleftheriadis, “System and Transport Interface of Emerging SVC Standard”, Joint Video Team (JVT), Doc. JVT-U151, Hangzhou, China, Oct. 2006.
    [20] G. Liebl, T. Schierl, T. Wiegand, and T. Stockhammer, “Advanced wireless multiuser video streaming using the scalable video coding extensions of H.264/MPEG4-AVC”, Multimedia and Expo 2006, Vol., Iss., July 2006.
    [21] C. Ying, X. Kai, Z. Feng, P. Purvin, and B. Jill, “Frame loss error concealment for SVC”, Journal of Zhejiang University, Vol. 7, Apr. 2006.

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