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广西师范大学学报(自然科学版) ›› 2021, Vol. 39 ›› Issue (5): 147-157.doi: 10.16088/j.issn.1001-6600.2020111201
文鹏, 王亚青, 唐胜达*
WEN Peng, WANG Yaqing, TANG Shengda*
摘要: 基于随机流体模型(stochastic fluid model, SFM)框架, 提出一种新的IP 网络动态视频流系统的SFM 模型, 分析视频流系统卡顿发生概率与初始缓冲时延之间关系, 从而确定最优缓冲阈值的设置。首先推导视频流系统3个首达时(first passage times, FPTs)的 Laplace-Stieltjes(LST)变换矩阵, 在此基础上得到卡顿发生概率和初始缓冲时延高于给定容忍时间概率; 基于此, 给出最佳缓冲阈值的算法设计; 最后利用数值结果验证解析结论。
中图分类号:
[1] 周个妹, 刘泽斌. 基于云服务的P2P流媒体技术在远程教学视频传输中的应用[J]. 中国教育信息化, 2016(6): 91-94. [2] 宋瑛瑛, 刘文婧. 移动终端气象流媒体服务的研究与设计[J]. 计算机系统应用, 2014, 23(9):26-31. [3] 白钢华, 李王辉. 网络视频流识别技术研究[J]. 信息安全与技术, 2014, 5(10): 62-64. [4] PEREIRA R, PEREIRA E G. Video streaming: Overview and challenges in the internet of things[M]. Pervasive Computing: Next Generation Platforms for Intelligent Data Collection.London: Academic Press, 2016: 417-444. [5] 程婕, 耿岩. 移动视频业务卡顿现象评估方法研究与演进[J]. 邮电设计技术, 2017(12): 11-15. [6] HOßFELD T, EGGER S, SCHATZ R, et al. Initial delay vs. interruptions: Between the devil and the deep blue sea[C] // 2012 Fourth International Workshop on Quality of Multimedia Experience. Melbourne: IEEE, 2012: 1-6. [7] SCHWIND A, MIDOGLU C, ALAY Ö, et al. Dissecting the performance of YouTube video streaming in mobile networks[J]. International Journal of Network Management, 2020, 30(3): e2058. [8] VEILLON V, DENNINNART C, SALEHI M A. F-FDN: Federation of fog computing systems for low latency video streaming[C] // 2019 IEEE 3rd International Conference on Fog and Edge Computing (ICFEC). Larnaca: IEEE, 2019: 1-9. [9] GUO Y S, YU F R, AN J P, et al. Buffer-aware streaming in small scale wireless networks: A deep reinforcement learning approach[J]. IEEE Transactions on Vehicular Technology, 2019, 68(7): 6891-6902. [10] 孙盛杰, 廖宇力, 虞衍聪. 流媒体连续性与实时性的有效平衡机制[J]. 广西师范大学学报(自然科学版), 2012, 30(2): 29-34. [11] BARMAN N, MARTINI M. QoE modeling for HTTP adaptive video streaming-A survey and open challenges[J]. IEEE Access, 2019, 7:30831-30859. [12] BOXMA O, ZWART B. Fluid flow models in performance analysis[J]. Computer Communications, 2018, 131: 22-25. [13] BOSMAN J, van der MEI R, NÚÑEZ-QUEIJA R. A fluid model analysis of streaming media in the presence of time-varying bandwidth[C] // 2012 24th International Teletraffic Congress (ITC 24). Krakow: IEEE, 2012: 1-8. [14] MARTIN F I V, ALINS-DELGADO J J, AGUILAR-IGARTUA M, et al. Modelling an adaptive-rate video-streaming service using markov-rewards models[C] // First International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks. Dallas: IEEE, 2004: 92-99. [15] BEAN N G, O′REILLY M M. A stochastic two-dimensional fluid model[J]. Stochastic Models, 2013, 29(1): 31-63. [16] AHN S, RAMASWAMI V. Efficient algorithms for transient analysis of stochastic fluid flow models[J]. Journal of Applied Probability, 2005, 42(2): 531-549. [17] AHN S, RAMASWAMI V. Transient analysis of fluid models via elementary level-crossing arguments[J]. Stochastic Models, 2006, 22(1): 129-147. [18] RAMASWAMI V. Passage times in fluid models with application to risk processes[J]. Methodology and Computing in Applied Probability, 2006, 8(4): 497-515. [19] ABATE J, WHITT W. Numerical inversion of Laplace transforms of probability distributions[J]. ORSA Journal on Computing, 1995, 7(1): 36-43. [20] BEAN N G, O′REILLY M M, TAYLOR P G. Hitting probabilities and hitting times for stochastic fluid flows[J]. Stochastic Processes and Their Applications, 2005, 115(9): 1530-1556. |
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