一种基于多M/M/m/m+M排队系统的分散型云计算建模方法
A Performance Modeling of Decentralized Cloud Computing Based on Multiple M/M/m/m+M Queuing Systems
查看参考文献13篇
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文摘
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基于Erlang-A同Erlang-C相结合的排队系统模型,由多云域组成的分散型云计算被抽象为多排队系统.基于丢弃率参数实现了对延迟敏感服务请求的准入控制,等待的服务请求以一定的丢弃概率被溢出.将丢弃概率引入Riordan公式,在Hayward近似中提出基于空间随机过程的汇聚溢出流渐进峰度因子,利用等效随机理论研究了溢出流丢失问题.通过仿真实验验证了基于丢弃率准入控制下多排队系统的性能提升. |
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其他语种文摘
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Based on Erlang-A and Erlang-C,a decentralized cloud computing system composed of multiple cloud domains is simplified to multiple queuing systems.The admission control of delay-sensitive service requests can be implemented based on abandonment rate,since waiting service requests are overflowed at a certain abandonment probability.The abandonment probability is introduced into Riordan Formula,while the asymptotic peakedness factor of aggregate overflow based on spatial stochastic process is introduced into Hayward's approximation.The overflow loss performance is studied using equivalent random theory.The performance improvementof the multiple queuing systems is testified by the numerical simulation under admission control based on abandonment rate. |
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来源
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电子学报
,2014,42(10):2055-2059 【核心库】
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DOI
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10.3969/j.issn.0372-2112.2014.10.029
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关键词
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云计算
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多云域
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丢失性能
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溢出负载
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丢弃率
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地址
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中国科学院沈阳自动化研究所, 中国科学院网络化控制系统重点实验室, 辽宁, 沈阳, 110016
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0372-2112 |
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学科
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自动化技术、计算机技术 |
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基金
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国家自然科学基金
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国家863计划
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中国科学院战略性先导科技专项
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文献收藏号
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CSCD:5299275
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