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一种高效率的零延迟VBR编码视频流调度算法 被引量：3

A high efficient scheduling algorithm for VBR-encoded video stream with zero delay
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摘要 如何有效使用网络带宽是网络视频点播系统的关键问题之一。可变码率编码VBR视频由于能提高视频压缩率而被广泛应用。支持用户零等待延迟的实时服务,且能减少服务器带宽消耗是点播服务算法的目标。分析了多种现有视频流调度方法的优劣,提出了ZDB-VBR算法来解决用户等待延迟问题,并最大限度地降低了服务器带宽消耗,提高了整个系统的效率。仿真实验表明了该方法在用户延迟、带宽消耗等方面的优越性。 In the network video services, one of the key techniques is to use storage and network re sources efficiently. The objective of algorithms is to support the real-time service of uses＇ zero waiting delay, and reduce the consumption of server＇s bandwidth. Several zero-delay stream scheduling algo- rithms are introduced, and the advantages and disadvantages of each scheduling methods are analyzed. ZDB-VBR algorithm is proposed to solve the users＇ waiting delay and reduce the consumption of server＇ s bandwidth maximally. It can improve the efficiency of the system. Simulation results prove the superi- ority of this method in dealing with user delay and bandwidth consuming
作者 王勇 张应刚 袁巢燕
机构地区 重庆理工大学计算机科学与工程学院
出处 《计算机工程与科学》 CSCD 北大核心 2013年第8期130-134,共5页 Computer Engineering & Science
基金 重庆市教委基金资助项目(KJ100821)
关键词 视频点播 流调度 可变码率 video on demand stream schedule variable bit rate
分类号 TP317.5 [自动化与计算机技术—计算机软件与理论]
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同被引文献26

  • 1CHUAH S P, CHEN Zben-zhong, TAN Y P. Distributed rate and power allocation for wireless video chats via pricing schemes [ C ]// Proc of IEEE International Conference on Multimedia and Expo. 2013:1-6.
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  • 6YANG Hai-yan, JING Xin-xing. Adaptive scalable video coding for wireless networks [ C ]//Proc of the 5 th IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications. 2013:496- 499.
  • 7LONG Yan, LI Hong-yan, MIAO Pan, et al. Scalable video coding based video transmission in MRMC networks: a cross-layer design perspective [ C ]//Proc of IEEE/CIC International Conference on Communications in China. 2013:763-767.
  • 8Ashraf A, Jokhio F, Deneke T, et aI. Stream-based admission control and scheduling for video transcoding in cloud computing [C]//2013 lath IEEE/ACM International Symposium on Clus- ter, Cloud and Grid Computing(CCGrid). IEEE, 2013 : 482-489.
  • 9Chu S L, Lo M J. Novel memory access scheduling algorithms for a surveillance system[J]. Appl. Math,2013,7(2):801-808.
  • 10Chen J, Mahindra R, Khojastepour M A, et al. A scheduling framework for adaptive video delivery over cellular networks [C]// Proceedings of the 19th Annual International Conference on Mobile Computing 8< Networking. ACM,2013:389-400.

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计算机工程与科学
2013年 第8期

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