| 多业务流媒体服务系统的自适应服务组合算法 |
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| 引用本文： | 朱里越,杨坚,胡晗,奚宏生. 多业务流媒体服务系统的自适应服务组合算法[J]. 小型微型计算机系统, 2010, 31(9) |
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| 作者姓名： | 朱里越 杨坚 胡晗 奚宏生 |
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| 作者单位： | 中国科学技术大学,网络传播系统与控制联合实验室,网络传播系统与控制安徽省重点实验室,安徽,合肥,230027 |
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| 基金项目： | 国家自然科学基金项目，国家"八六三"高技术研究发展计划项目，国家"八六三"计划项目 |
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| 摘 要： | 服务组合可以将网络上多种异构服务重新组合,形成新的业务.本文在流媒体应用中,采用三层服务组合架构,通过检测用户点播行为的改变,触发流媒体服务组合自适应调整,以最小化用户整体点播延迟为目标,在保证用户QoS的同时,最大化利用服务器现有的资源,从而扩充服务器服务能力,降低用户点播的拒绝率.试验仿真结果表明流媒体服务集群系统性能得到了大幅度的提高.
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| 关 键 词： | 服务组合 用户行为 服务迁移 流媒体服务 多业务系统 |
Adaptive Service Composition Algorithm for Multi-service System on Media Streaming |
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| ZHU Li-yue,YANG Jian,HU Han,XI Hong-sheng. Adaptive Service Composition Algorithm for Multi-service System on Media Streaming[J]. Mini-micro Systems, 2010, 31(9) |
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| Authors: | ZHU Li-yue YANG Jian HU Han XI Hong-sheng |
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| Affiliation: | ZHU Li-yue,YANG Jian,HU Han,XI Hong-sheng(University of Science and Technology of China,Network Communication System Network Communication and Control,Joint Laboratory of Anhui Province Key Laboratory of Systems and Control,Hefei 230027,China) |
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| Abstract: | Services composition can be a variety of heterogeneous network services will be reorganize to form a new business.This paper discusses the service composition in the streaming media application.A three layers model is adopted to describe the service composition in streaming media system.The algorithm tests the user demand behavioral change to minimize the delay of all user demand.Streaming media service composition adjusts user paths of services,which will expanding the server Service ability to maximize us... |
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| Keywords: | service composition user behavior service migrate media streaming service multi-service system |
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