| 基于动态流感知的接纳控制策略研究 |
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| 引用本文： | 邱恭安,张顺颐,王攀.基于动态流感知的接纳控制策略研究[J].南京邮电大学学报(自然科学版),2008,28(3). |
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| 作者姓名： | 邱恭安 张顺颐 王攀 |
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| 作者单位： | 南京邮电大学信息网络技术研究所,江苏南京,210003 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 流感知接纳控制使用调度机制测量的优先队列队长和公平速率作为链路状态信息实现隐式接纳判决.在对动态流感知进行分析的基础上,定义了优先队列的拥塞指数.在不同拥塞指数条件下,提出分别使用与流峰值速率相关的接纳概率对多业务进行区分接入判决,通过拒绝高速弹性流的接入达到对低速实时流的性能保护.推导了实时流阻塞率和弹性流平均吞吐量的理论公式.仿真结果显示相对于基于测量的接纳控制算法,提出策略具有较低的阻塞率和更好的平均吞吐量性能.
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| 关 键 词： | 动态流感知 动态接纳控制 多业务网络 |
Dynamic Flow Awareness Based Admission Control Scheme |
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| QIU Gong-an,ZHANG Shun-yi,WANG Pan.Dynamic Flow Awareness Based Admission Control Scheme[J].Journal of Nanjing University of Posts and Telecommunications,2008,28(3). |
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| Authors: | QIU Gong-an ZHANG Shun-yi WANG Pan |
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| Institution: | QIU Gong-an,ZHANG Shun-yi,WANG Pan Institute of Information Networks Technology,Nanjing University of Posts , Telecommunications,Nanjing 210003,China |
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| Abstract: | Flow-aware admission control performs implicit admission decisions using the link state parameters,i.e.priority queue length and fair rate measured by scheduling scheme.First of all,congestion index of priority queue is explicitly defined based on the analysis of dynamic flow-awareness.For the varying congestion index,admissions for services are differentiated by corresponding decisions with admission probability determined by the peak rate of flows.Thus the performance of real-time streaming flows can be g... |
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| Keywords: | dynamic flow-awareness dynamic admission control multi-service networks |
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