| QTNPOSS网络最大延时性能分析 |
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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[J].北京交通大学学报(自然科学版),2011,35(2). |
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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： | 北京交通大学计算机与信息技术学院,北京,100044;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 Hongkeb.Maximum transmission delay for QTNPOSS network[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,2011,35(2). |
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| Authors: | XIONG Kea QIU Zhengdinga ZHANG Yua GUO Yuchunb ZHANG Hongkeb |
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| Institution: | XIONG Kea,QIU Zhengdinga,ZHANG Yua,GUO Yuchunb,ZHANG Hongkeb(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... |
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| Keywords: | TNPOSS QTNPOSS end to end delay bound fractal leak bucket WFQ network calculus |
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