| QTNPOSS网络最大延时性能分析（英文） |
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| 引用本文： | 熊轲,裘正定,张煜,郭宇春,张宏科.QTNPOSS网络最大延时性能分析（英文）[J].北方交通大学学报,2011(2):137-144. |
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| 作者姓名： | 熊轲 裘正定 张煜 郭宇春 张宏科 |
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| 作者单位： | [1]北京交通大学计算机与信息技术学院,北京100044 [2]北京交通大学电子信息与工程学院,北京100044 |
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| 基金项目： | National Basic Research Program of China“973 Program”（2007CB307101 2007CB307106）; Program of Introducing Talents of Discipline to Universities“111 Project”（B08002）; Cultivation Fund of the Key Scientific and Technical Innovation Project Ministry of Education of China（706005）; National Natural Science Funds（60772043） |
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| 摘 要： | 为增强TNPOSS网络的QoS性能,通过引入分形令牌桶（FLB）和加权公平队列调度（WFQ）,提出了QoS增强的TNOPSS（QTNPOSS）网络模型.在QTNPOSS中,网络多媒体流的数据包在到达网络节点时进行整形,而后通过WFQ输出.利用网络微积分工具,分析了QTNPOSS网络的最大端到端延时表达式.大量数值实验表明,多媒体流的长相关特性和WFQ的权重对QT-NPOSS网络的延时都有影响,其中WFQ权重对QTNPOSS网络端到端延时的影响更大.
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| 关 键 词： | TNPOSS QTNPOSS 端到端延时 分形令牌桶 加权公平队列 网络分积分 |
Maximum transmission delay for QTNPOSS network |
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| XIONG Kea,QIU Zhengdinga,ZHANG Yua,GUO Yuchunb,ZHANG Hongke.Maximum transmission delay for QTNPOSS network[J].Journal of Northern Jiaotong University,2011(2):137-144. |
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| Authors: | XIONG Kea QIU Zhengdinga ZHANG Yua GUO Yuchunb ZHANG Hongke |
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| Institution: | b(a.School of Computer and Information Technology,b.School of Electronics and Information Engineering,Beijing Jiaotong University,Beijing 100044,China) |
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| Abstract: | To enhance the QoS performance of TNPOSS network,this paper proposes a QoS-enhanced TNPOSS（QTNPOSS）network model by introducing Fractal Leak Bucket（FLB）shaper and Weighted Fair Queuing（WFQ）scheduler.In the QTNPOSS model,multimedia stream packets are shaped by FLBs at the input of a router and output by the WFQ queues.We analyze the maximum end-to-end（E2E）delay of QTNPOSS network using the network calculus.Extensive numerical experiments show that both the long-range dependence（LRD）property of the multimedia streams and the weight of the queues have impacts on the maximal E2E delay,and the WFQ weight influences the E2E delay bound more greatly than the LRD property does. |
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| Keywords: | TNPOSS QTNPOSS end to end delay bound fractal leak bucket WFQ network calculus |
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