计算机工程与应用 ›› 2010, Vol. 46 ›› Issue (4): 83-85.DOI: 10.3778/j.issn.1002-8331.2010.04.026

• 网络、通信、安全 • 上一篇    下一篇

改进的AQM在拥塞控制中的应用策略

魏星光1,刘 渊2   

  1. 1.江南大学 信息工程学院,江苏 无锡 214122
    2.江南大学 数字媒体创意中心,江苏 无锡 214122
  • 收稿日期:2008-09-11 修回日期:2008-11-28 出版日期:2010-02-01 发布日期:2010-02-01
  • 通讯作者: 魏星光

Strategy for congestion control based on improved AQM

WEI Xing-guang1,LIU Yuan2   

  1. 1.School of Information Engineering,Jiangnan University,Wuxi,Jiangsu 214122,China
    2.Creative Digital Media Research Center,Jiangnan University,Wuxi,Jiangsu 214122,China
  • Received:2008-09-11 Revised:2008-11-28 Online:2010-02-01 Published:2010-02-01
  • Contact: WEI Xing-guang

摘要: 随着计算机网络的持续快速发展,各种网络需求不断涌现,拥塞控制成为保证网络的稳定性和鲁棒性的重要因素,拥塞控制的发展要求网络本身也要参与其中。传统的端到端机制不能解决所有的拥塞问题,作为主动管理队列算法的REM原算法由于对RTT的不精确估计导致不能准确反应网络中拥塞状态。根据控制论中将链路价格化的方法,对REM算法的进行了改进,提出了新的拥塞控制机制。仿真实验表明,该方法能有效减少包的丢失,提高系统性能。

Abstract: With the rapid development of Internet,various applications based on the Internet have emerged.The congestion control becomes a most important protocol which improves the Internet’s stability and robustness.Its development requires network to manage itself.The traditional end to end strategy can not solve all congestion problems.As a result of imprecise estimate on RTT,original REM is not able to accurately reflect the congestion state.Based on the cybernetics and REM algorithm,an improved AQM algorithm and a congestion control strategy are proposed.The simulation result shows that the new one can effectively decrease the packet loss rate and improve network performance.

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