博碩士論文 etd-0714111-143329 詳細資訊


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姓名 黃琮期(Cong-qi Huang) 電子郵件信箱 E-mail 資料不公開
畢業系所 電機工程學系研究所(Electrical Engineering)
畢業學位 碩士(Master) 畢業時期 99學年第2學期
論文名稱(中) 多波束基地台之無線區域網路中適合多媒體串流之媒介存取控制 
論文名稱(英) Medium Access Control for Multimedia Streaming over Wireless LANs with Multi-Beam Access Point
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    紙本論文:5 年後公開 (2016-07-14 公開)

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    論文語文/頁數 中文/107
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    摘要(中) 隨著無線區域網路的普及與影音編碼技術的提昇,隨時隨地提供高品質的多媒體影音串流服務勢必廣受歡迎。由於多媒體影音串流的資料具有連續性、長時間與即時性,因此無線區域網路必須要有一套具有服務品質(quality-of-service)保證且提供高產率(throughput)的媒介存取控制(medium access control,簡寫成MAC)機制。從這個角度來看,無線區域網路裡頭配置有多波束(multi-beam)的基地台(access point,簡寫成AP)便成為很吸引人的解決方案之一,因為多波束基地台可以發揮空間再利用率(spatial reuse),將throughput大幅提昇。由於目前無線區域網路的國際標準IEEE 802.11不支援服務品質保證的功能,IEEE又增訂了802.11e國際標準,以支援多媒體資料的傳輸。然而若802.11/802.11e不做任何修改便直接套用至具多波束基地台的無線區域網路中,將面臨到許多問題。由於目前已知文獻皆透過修改802.11的DCF(distributed coordination function)機制來支援多波束的基地台,因此不具有服務品質保證的功能。
    本論文以802.11e的HCCA(hybrid channel control access)為基礎,提出一套新的媒介存取控制協定,稱為MPCF(multi-beam AP-assisted point coordination function),不但適合具多波束基地台的無線區域網路,而且還提供non-reversal prioritization、time-bounded reservation、admission control、power management與cross-layer rate adaptation功能,以支援多媒體影音串流的服務。而且MPCF與傳統的802.11(即DCF)完全相容,能兼顧市場價值。模擬實驗結果顯示,就多媒體即時影音傳輸的表現來看,MPCF遠優於目前文獻已知支援multi-beam AP的MAC協定。
    摘要(英) With the proliferation of mobile devices and the advance of audio/video coding technologies, there is an increasing demand to provide quality-of-service (QoS) guarantees for multimedia applications. A WLAN (wireless local are network) typically consists of an access point (AP) and a finite set of mobile stations. Since the AP is generally more powerful and less physical constraint than mobile stations, it is of great interest to consider the use of sectorized multi-beam antennas at the AP to boost the network throughput by exploiting the benefit of spatial reuse.
    IEEE 802.11 is current the de facto standard for WLANs. However, if we directly apply 802.11 to the WLAN with multi-beam AP without any modification, we will encounter many challenging problems. Although existing solutions modify the 802.11 DCF (distributed coordination function) to solve these problems, yet DCF does not provide any QoS support.
    On the basis of 802.11e HCCA (hybrid channel control access), in this thesis, we propose a novel MAC protocol, named MPCF (multi-beam AP-assisted point coordination function), which is not only backward compatible with DCF, but also supports QoS functionalities, including non-reversal prioritization, time-bounded reservation, admission control, and cross-layer rate adaptation for multimedia streaming.
    Simulation results show that, in terms of throughput, frame delay dropped rate, and energy throughput, MPCF significantly outperforms existing protocols even in imperfect beam-forming and mobility environments.
    關鍵字(中)
  • 媒介存取控制
  • 無線區域網路
  • IEEE 802.11e
  • 服務品質保證
  • 跨層設計
  • 多波束基地台
  • 關鍵字(英)
  • cross-layer design
  • IEEE 802.11e
  • wireless local area network
  • multi-beam access point
  • medium access control
  • 論文目次 論文審定書 i
    誌謝 ii
    中文摘要 iii
    英文摘要 iv
    圖次 vii
    表次 ix
    第一章 緒論 1
    1.1 挑戰 2
    1.2 文獻回顧 4
    1.3 貢獻 6
    第二章 MPCF協定 9
    2.1 無線區域網路架構 9
    2.2 Superframe結構 9
    2.3 Prioritization Procedure 11
    2.4 Collision Resolution Procedure 14
    2.5 Polling Procedure and Energy-Conserving Scheduling 18
    2.6 Rate Adaptation Procedure 23
    2.7 Runtime Admission Control 27
    2.8 Beam-Location Related Problems的處理 30
    第三章 模擬器設計與實作 32
    3.1 模擬程式的撰寫 32
    3.2 MPCF模擬程式流程 37
    3.3 比較對象模擬程式流程 50
    3.4 Imperfect beam-forming判斷 58
    3.5 Mobility model 59
    3.6 模擬程式執行結果 64
    第四章 模擬實驗結果 67
    4.1 實驗參數設定 67
    4.2 Wireless channel環境設定 68
    4.3 Antenna model設定 69
    4.4 實驗結果 70
    第五章 結論 92
    參考文獻 93
    附錄 96
    參考文獻 [1] Adaptive Multi-Rate (AMR) Compression, Wikipedia. [Online] http://en.wikipedia.org/wiki/Adaptive_Multi-Rate_Wideband
    [2] Olufunmilola Awoniyi and Fouad A. Tobagi, “Effect of Fading on the Performance of VoIP in IEEE 802.11a WLANs,” IEEE Communications Society, Vol. 6, pp. 3712-3717, June 2004.
    [3] Zi-Tsan Chou, C.-C. Hsu, and S.-N. Hsu, “UPCF: A New Point Coordination Function With QoS and Power Management for Multimedia over Wireless LANs,” IEEE/ACM Transactions on Networking, Vol. 14, No. 4, pp. 807-820, August 2006.
    [4] T. Cormen, C. Leiserson, R. Rivest, and Clifford Stein, Introduction to Algorithms, Second Edition, McGraw-Hill, 2003.
    [5] Matthew S. Gast, 802.11 Wireless Networks: The Definitive Guide, O'Reilly Inc., 2002.
    [6] C.-W. Huang, M. Loiacono, J. Rosca, and J.-N. Hwang, “Distributed Cross Layer Congestion Control for Real-Time Video over WLAN,” IEEE International Conference on Communications, May 2008.
    [7] IEEE Standard 802.11, Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications. IEEE, November 1999.
    [8] IEEE Standard 802.11e, Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, Amendment 8: Medium Access Control (MAC) Quality of Service Enhancements. IEEE, November 2005.
    [9] B. Kim, S. Kim, Y. Fang, and T. F. Wong, “Two-Step Multipolling MAC Protocol for Wireless LANs,” IEEE Journal on Selected Areas in Communications, Vol. 23, No. 6, pp. 1276-1286, June 2005.
    [10] Byung-Seo Kim, Yuguang Fang, Tan F. Wong, and Younggoo Kwon, “Throughput Enhancement Through Dynamic Fragmentation in Wireless LANs,” IEEE Transactions on Vehicular Technology, Vol. 54, No. 4, pp. 1415-1425, July 2005.
    [11] Wen-Hsing Kuo, Wanjiun Liao, and Tehuang Liu, “Adaptive Resource Allocation for Layer-Encoded IPTV Multicasting in IEEE 802.16 WiMAX Wireless Networks,” IEEE Transactions on Multimedia, Vol. 13, No. 1, pp. 116-124, February 2011.
    [12] A. M. Law and W. David Kelton, Simulation Modeling and Analysis, 3rd Edition, McGrraw-Hill Book Company Inc., 2000.
    [13] J. Li, “Scalable Audio Coding,” Multimedia over IP and Wireless Networks, Chapter 6, pp. 159-183, Academic Press Inc., 2007.
    [14] Qixiang Pang, Victor C. M. Leung, and Soung Chang Liew, “An Enhanced Autorate Algorithm for Wireless Local Area Networks Employing Loss Differentiation,” IEEE Transactions on Vehicular Technology, Vol. 57, No. 1, pp. 521-531, January 2008.
    [15] B. Pesquet-Popescu, S. Li, and M. van der Schaar, “Scalable Video Coding for Adaptive Streaming Applications,” Multimedia over IP and Wireless Networks, Chapter 5, pp. 117-158, Academic Press Inc., 2007.
    [16] Michael L. Pinedo, Scheduling: Theory, Algorithms, and Systems, 3rd Edition, Springer, 2008.
    [17] The Scalable Video Coding Amendment of the H.264/AVC Standard. [Online] HUhttp://ip.hhi.de/imagecom_G1/savce/index.htmU
    [18] M. van der Schaar, Y. Andreopoulos, and Z. Hu, “Optimized Scalable Video Streaming over IEEE 802.11a/e HCCA Wireless Networks under Delay Constraints,” IEEE Transactions on Mobile Computing, Vol. 5, No. 6, pp. 755-768, June 2006.
    [19] H. Schwarz, D. Marpe, and T. Wiegand, “Overview of the Scalable Video Coding Extension of the H.264/AVC Standard,” IEEE Trans. on Circuits and Systems for Video Technology, Vol. 17, No. 9, pp. 1103-1120, September 2007.
    [20] A. Silberschatz and P. B. Galvin, Operating System Concepts, 4th Edition, Addison-Wesley, 1994.
    [21] Z. Tang, X. Xing, and F. Jiang, “Providing Balanced and Enhanced Transmission for WLANs with Multi-beam Access Point,” IEEE Communication Networks and Services Research Conference, pp. 242-248, 2008.
    [22] J. Villalón, P. Cuenca, L. Orozco-Barbosa, Y. Seok, and T. Turletti, “Cross-Layer Architecture for Adaptive Video Multicast Streaming over Multirate Wireless LANs,” IEEE Journal on Selected Areas in Communications, Vol. 25, No. 4, pp. 699-711, MAY 2007.
    [23] J. Wang, Y. Fang, and D. Wu, “Enhancing the Performance of Medium Access Control for WLANs with Multi-beam Access Point,” IEEE Trans. on Wireless Communications, Vol. 6, No. 2, pp. 556-565, February 2007.
    [24] Wi-Fi Alliance. [Online] http://www.wi-fi.org
    [25] Wi-Fi System Interoperability Test Plan. December 2002. [Online] HUhttp://www.vocollect.com/us/proucts/11b_test_matrix.pdfU
    口試委員
  • 許蒼嶺 - 召集委員
  • 黃婉甄 - 委員
  • 周孜燦 - 指導教授
  • 口試日期 2011-07-06 繳交日期 2011-07-14

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