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研究生:楊仁福
研究生(外文):Jen-Fu Yang
論文名稱:在差異化服務網路提供視訊群播異質化的服務品質:調和式差異化服務
論文名稱(外文):Provision of Video Multicast with Heterogeneous QoS in Differentiated Service Network : Harmonic DiffServ
指導教授:童曉儒
指導教授(外文):Sheau-Ru Tong
學位類別:碩士
校院名稱:國立屏東科技大學
系所名稱:資訊管理系
學門:電算機學門
學類:電算機一般學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:104
中文關鍵詞:異質化的服務品質和諧分割叢集映對
外文關鍵詞:Heterogeneous QoSharmonic partitionClusterMapping
相關次數:
  • 被引用被引用:1
  • 點閱點閱:233
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  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:3
本篇論文提出了一個改良式的差異化服務機制,稱為”調和式差異化服務(Harmonic DiffServ)”。其主要目的是針對目前網際網路使用群播技術傳送視訊資料時,能夠最有效率地提供用戶異質化的服務品質(Heterogeneous QoS)。在論文中我們提出了一個「和諧分割」的方法,配合目前網際網路上的群播路由協定,可以將DiffServ Domain 內的群播樹聚集成叢集(Cluster),並將這些叢集「映對」成目前DiffServ尚未定義的DSCP碼,做為分類封包的依據,以達成提供Heterogeneous QoS的目的。並提出「DSCP碼交換」方法,結合「和諧分割」方法可以更進一步地抑制DSCP碼的成長,而大幅提升所提機制的實用性。最後透過模擬實驗,證明我們所提出機制不僅可以達到如IntServ的頻寬利用效率,並擁有DiffServ所具有的網路擴充性。
1 緒論…………………………………………………………1
1.1 研究背景…………………………………………………1
1.2 研究動機…………………………………………………3
1.3 研究目的…………………………………………………4
1.4 研究方法與步驟…………………………………………5
1.5 論文架構…………………………………………………6
2 文獻探討……………………………………………………8
2.1 Multicast技術 …………………………………………8
2.2 調適速率(adaptive bit-rate)技術…………………14
2.2.1 Single-stream video multicast ………………14
2.2.2 Replicated-stream video multicast …………15
2.2.3 Layered video multicast ………………………17
2.2.3.1 RLM…………………………………………………18
2.2.3.2 LVM R………………………………………………20
2.3 整合式服務(Integrated Service—IntServ)………24
2.3.1 服務架構……………………………………………24
2.3.2 RSVP…………………………………………………26
2.3.3 Reservation Style ………………………………29
2.4 差異化服務(Differentiated Service—DiffServ) 30
2.4.1 DSCP的定義…………………………………………31
2.4.2 差異化服務架構……………………………………32
2.4.3 逐點傳送行為(Per Hop Behavior—PHB) ………36
2.4.3.1 快速傳送(Expedited Forwarding-EF)…………38
2.4.3.2 確保傳送(Assured Forwarding—AF) …………39
2.4.4 AH-LMS方法…………………………………………41
2.5 IntServ over DiffServ方法…………………………44
3 異質性服務品質(Heterogeneous QoS)問題之模型……47
3.1 在IntServ的架構提供異質性的服務品質……………48
3.2 分級編碼(Layer based Encoding-LE)………………51
3.3 框型編碼(Type based Encoding-TE) ………………53
4 解決方法.…………………………………………………56
4.1 叢集編碼(Cluster based Encoding—CE) …………56
4.2 Cluster based Encoding with Code Exchange-CE/CX65
5 模擬結果 …………………………………………………74
5.1 模擬步驟及模組說明 …………………………………74
5.2 實驗一:DiffServ與CE方法之頻寬比較 ……………81
5.3 實驗二:CE之DSCP成長趨勢分析………………………85
5.4 實驗三:CE與CX之DSCP數目比較………………………89
6 結論與未來研究方向 ……………………………………95
6.1 結論 ……………………………………………………95
6.2未來研究方向 …………………………………………97
7 參考文獻 …………………………………………………99
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[2] Bernet Y., R. Yavatkar, P. Ford, F. Baker, L. Zhang, K. Nichols, and M. Speer, “A Framework for Intergrated Services Operation over Diffserv Networks,” IETF RFC 2998.
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[4] Braden R., D. Clark, and S.Shenker, “Intergrated Services in the Internet Architecture : An Overview” ,RFC1633 , June 1994.
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[10] Ferrari D. and D.C. Verma,”Scheme for Real-Time Channel Establishment in Wide-Area Network”, IEEE JSAC, val.8, APR. 1990, PP. 368-379.
[11] Heinanen J., F. Baker, W. Weiss, and J. Wroclawski, “Assured Forwarding PHB Group”, IETF RFC 2597.
[12] http://www.cisco.com
[13] Jacobson V., K. Nichols, and K. Poduri, “An Expedited Forwarding PHB”, IETF RFC 2598.
[14] Lake S. B., D. Black, M. Carlson, E. Davies, Z. Wang, and W. Weiss, “An Architecture foe Differentiated Services”, IETF RFC 2475
[15] Lee Jun-Hwa, Mi-Ran Choi, Mi-Lee Cha, Sang-Ha Kim “A routing mechanism for guaranteeing heterogeneous QoS in the internet” Networks, 2001. Proceedings. Ninth IEEE International Conference on 2001, Page(s): 202 —207
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[17] Li X., S. Paul, and M. H. Ammar, “Layered Video Multicast with Retransmission(LVMR): Evaluation of Hierarchical Rate Control”, Proc. Of IEEE INFOCOM ’98, (Stanford, CA), March. 1998.
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[21] Nichols K. et al. ,”Difinition of the Differentiated Services Field(DS Field) in the IPv4 and IPv6 Headers”, RFC 2474 Dec. 1998.
[22] Pusateri T., “Distance Vector Multicast Routing Protocol”, Internet Draft, draft-ietf-idmr-dvmrp-v3-09.pdf, Obsoletes : RFC 1075, September 1999.
[23] Robinet J., Y. Au, and A. Banerjea, “Implementation of a Gateway for Hierarchically Encoded Video across ATM and IP Network”,Proc. Of High Performance Networking Wksp (HPN) ’98, (Vienna Austria), Sept. 1998.
[24] Sahasrabuddhe L. H. and B. Mukherjee ,University of California ”Multicast Routing Algorithms and Protocols : A Tutorial “ IEEE Network, Jan/Feb 2000.
[25] Shacham N.,” Multipoint Communication by Hierarchically Encoded Data”,Proc. of IEEE INFOCOM ’92, PP.2107-2114
[26] Shenker S., C. Partridge, and R. Guerin, “Specification of Guaranteed Quality of Service,” Internet RFC 2212, September 1997.
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[28] Tong Sheau-Ru, Yuan-Tse Yu and Chung-Ming Huang, “Efficient Resource Reservation based on Communication Paradigms for Multimedia Communications”, IEEE Conference on Multimedia and Expo on Aug 2001
[29] Waitzman D., C. Partridge, S. Deering, “Distance Vector Multicast Routing Protocol”, RFC 1075, November 1998.
[30] White P. P., “RSVP and Integrated Services in the Internet: A Tutorial,” IEEE Communications Magazine, pp. 100-106, May 1997
[31] Wroclawski J., “Specification of the Controlled-Load Network Element Service,” Internet RFC 2211, September 1997.
[32] Wu L., R. Sharma, and B. Smith, “Thin Stream : An Archtecture for Multicasting Layered Video”, Proc. Of NOSSDAV ’97,(St. Louis, Ml), May 1997.
[33] Xiao X. and L. M. Ni, Michigan State University, “Internet QoS : A Big Picture”, IEEE Network, March./April 1999, pp.8-18.
[34] Zhang L. et al.,”RSVP : A NEW Resource Reservation Protocol”, IEEE Network, vol., Sept./Oct. 1993, pp.8-18.
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