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基于VBR視頻流量預測的動態(tài)帶寬分配滯回算法

劉亞偉,  荊濤,  蔣笑冰,  馮玉珉

劉亞偉, 荊濤, 蔣笑冰, 馮玉珉. 基于VBR視頻流量預測的動態(tài)帶寬分配滯回算法[J]. 電子與信息學報, 2005, 27(5): 762-766.
引用本文: 劉亞偉, 荊濤, 蔣笑冰, 馮玉珉. 基于VBR視頻流量預測的動態(tài)帶寬分配滯回算法[J]. 電子與信息學報, 2005, 27(5): 762-766.
Liu Ya-wei, Jing Tao, Jiang Xiao-bing, Feng Yu-min . A Hysteresis Algorithm for Dynamic Bandwidth Allocation Based on VBR Video Traffic Prediction[J]. Journal of Electronics & Information Technology, 2005, 27(5): 762-766.
Citation: Liu Ya-wei, Jing Tao, Jiang Xiao-bing, Feng Yu-min . A Hysteresis Algorithm for Dynamic Bandwidth Allocation Based on VBR Video Traffic Prediction[J]. Journal of Electronics & Information Technology, 2005, 27(5): 762-766.

基于VBR視頻流量預測的動態(tài)帶寬分配滯回算法

A Hysteresis Algorithm for Dynamic Bandwidth Allocation Based on VBR Video Traffic Prediction

  • 摘要: 研究表明VBR視頻流量具有較強的長時相關性和突發(fā)性,該文利用高階自回歸過程預測其流量,并進行概率分布轉換,同時提出了一種新的動態(tài)帶寬分配算法--滯回算法,與Chiruvolu(1998)提出的門限算法,及Iraqi(1999)提出的基于GOP場景檢測的帶寬分配方案相比,對緩存尺寸的需求、信元丟失率等性能有明顯提高。仿真表明,該算法能夠以較低的開銷(帶寬重分配次數(shù)百分比2%)同時兼顧了信元丟失率和帶寬利用率,而且只有在緩存隊長超過迂回門限時才觸發(fā)帶寬重分配過程,有利于在線實現(xiàn)。
    Abstract: With lots of studies, it is admitted that the variable bit rate video traffic exhibits high long range dependence and burstness. Its traffic is predicted by auto-regressive process with high order in this paper while the probablity distribution of traffic predicted is also transformed to that of real situation. And then a new dynamic bandwidth allocation algorithm named hysteresis algorithm is presented, by which performances of buffer size requirement and cell loss rate are both improved significantly compared with threshold algorithm presented by Chiruvolu (1998) and allocation scheme based on group of pirclures scene detection presented by Iraqi (1999). The proposed algorithm gives attention to both cell loss rate and utilization at the considerate low cost (reallocation frequency ^2%) according to a number of simulations. And the bandwidth reallocation process is only triggered when the queuing length of buffer surpasses the roundabout threshold so that it is easy for online realization.
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  • Sivaradje G, Dananjayan P. Effcient resource allocation scheme for real-time MPEG video traffic over ATM networks. The 8th International Conference on Communication Systems, Nov. 2002,Vol.2:747 - 751.[2]Iraqi Y, Boutaba R. A dynamic bandwidth allocation algorithm for MPEG video sources in wireless networks. Proceedings of the 3rd International Workshop on Discrete Algorithms and Methods for Mobile Computing and Communications, Seattle, Washington,United States, August 1999:86 - 92.[3]Lei H, Kumar S, Kuo C.-C. J. Adaptive resource allocation for multimedia services in wireless communication networks. 2001International Conference on Distributed Computing Systems Workshop, April 2001: 307 - 312.[4]Nagarajan K, Zhou G T. A new resource allocation scheme for gaussian traffic sources. 2000 IEEE International Conference on Acoustics, Speech, and Signal Processing, June 2000, Vol.5:2609 - 2612.[5]Chiruvolu G, Sankar R, Ranganathan N. Adaptive VBR video traffic management for higher utilization of ATM networks[J].ACM SIGCOMM Computer Communication Review.1998, 28(3):27-[6]Supangkat S H, Nugraha I G B B. Characteristic of variable- bitrate video frames duration over the ethernet network. Fifth AsiaPacific Conference on Communications and Fourth Optoelectronics and Communications Conference, October 1999,Vol. 1: 94 - 97.[7]Doulamis N D, Doulamis A D, Konstantoulakis G E, et al..Efficient modeling of VBR MPEG-1 coded video sources[J].IEEE Trans. on Circuits and Systems for Video Technology.2000, 10(1):93-[8]Garrett M W, Willinger W. Analysis, modeling and generation of self-similar VBR video traffic. Proc. ACM SIGCOMM94,London, U. K., August 1994: 269 - 280.[9]Krunz M M, Makowski A M. Modeling video traffic using M/G/ input process: a compromise between markovian and LRD models[J].IEEE J. on Selected Areas in Communications.1998, 16(5):733-[10]Liu D, Sra E I, Sun W. Nested auto-regressive progress for MPEG-encoded video traffic modeling[J].IEEE Trans. on Circuits and Systems for Video Technology.2001, 11 (2):169-
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  • 收稿日期:  2003-12-25
  • 修回日期:  2004-04-19
  • 刊出日期:  2005-05-19

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