Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (9): 2249-2253.

• 软件、算法与仿真 • 上一篇    下一篇

预留轮询策略队列调度方案的建模和分析

陈海宴1,2, 田乃硕3, 徐秀丽3   

  1. 1. 东北大学秦皇岛分校, 河北, 秦皇岛, 066004;
    2. 燕山大学信息科学与工程学院, 河北, 秦皇岛, 066004;
    3. 燕山大学理学院, 河北, 秦皇岛, 066004
  • 收稿日期:2008-08-12 修回日期:2008-11-12 出版日期:2009-09-20 发布日期:2010-01-03
  • 作者简介:陈海宴(1966- ),男,副教授,博士,主要研究方向为通信系统、排队论.E-mail:chenhy736@sina.com
  • 基金资助:
    国家自然科学基金(10671170)资助课题

Analysis and modeling for queue scheduling with polling and reservation strategy

CHEN Hai-yan1,2, TIAN Nai-shuo3, XU Xiu-li3   

  1. 1. Northeastern Univ. Qinhuangdao Branch, Qinhuangdao 066004, China;
    2. Coll. of Information Science and Engineering, Yanshan Univ., Qinhuangdao 066004, China;
    3. Coll. of Science, Yanshan Univ., Qinhuangdao 066004, China
  • Received:2008-08-12 Revised:2008-11-12 Online:2009-09-20 Published:2010-01-03

摘要: 设计了网络中间节点(网关和路由器)的预留轮询策略队列调度方案。对不同服务质量(qualities of service,QoS)要求的延迟敏感型和非延迟敏感型混合业务,通过调度不同业务间链路传输速率,使不同业务得到不同等级的服务;建立了混合业务预留轮询策略的队列调度三维马尔可夫排队模型,使用拟生灭过程和矩阵几何解的方法对该模型进行分析,得到了系统的主要性能指标:第一类非延迟敏感型业务和第二类延迟敏感型业务的平均队长、等待时间和吞吐量。给出了第二类延迟敏感型业务的阻塞概率等结果。

Abstract: A queue scheduling with polling and reservation strategy for the network node is designed.Because the delay sensitive traffic and the non-delay sensitive traffic need the different qualities of service(QoS),they will gain the different services through scheduling appropriate transmission rates.A three-dimensional Markov queue model is proposed to investigate the queue scheduling.The queue is analyzed by using a method of matrix-geometric solution.The performance index are derived,including the mean queue length,mean waiting time and throughput of both the delay sensitive traffic and the non-delay sensitive traffic,and the blocking probability of the delay sensitive traffic is also obtained.

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