| 具有最小时间加权平方误差积分的主动队列管理算法ISTE-PI |
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| 引用本文： | 汪浩,李晓明,严伟,黄明和. 具有最小时间加权平方误差积分的主动队列管理算法ISTE-PI[J]. 计算机学报, 2012, 35(5): 951-963 |
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| 作者姓名： | 汪浩 李晓明 严伟 黄明和 |
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| 作者单位： | 1. 江西师范大学软件学院 南昌330022
2. 北京大学信息科学技术学院光纤通信系统与网络国家重点实验室 北京100871 |
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| 基金项目： | 国家"九七三"重点基础研究发展规划项目基金，国家自然科学基金，江西省教育厅科技项目，江西师范大学博士启动基金，江西师范大学科研计划项目资助 |
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| 摘 要： | 针对现有基于控制论的主动队列管理(AQM)算法的不足,在不忽略TCP/AQM传递函数模型中时滞环节的条件下,将TCP短流和UDP流作为干扰信号引入AQM控制器的设计过程,并借助最小"时间加权平方误差积分(ISTE)"控制方法,设计了一个基于PI控制器的AQM算法ISTE-PI.与现有算法相比,ISTE-PI算法同时具备响应速度快、抗干扰能力强、能用于大时滞网络环境且鲁棒性好等特点.鉴于Internet网络流量由TCP长流、TCP短流和UDP流构成,且是大时滞网络,因此ISTE-PI算法能更好地适应Internet网络环境下的主动队列管理.
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| 关 键 词： | 拥塞控制 主动队列管理(AQM) 时间加权平方误差积分(ISTE) 大时滞网络 抗干扰 |
A Novel AQM Algorithm Based on the PI Controller with Minimum ISTE |
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| WANG Hao , LI Xiao-Ming , YAN Wei , HUANG Ming-He. A Novel AQM Algorithm Based on the PI Controller with Minimum ISTE[J]. Chinese Journal of Computers, 2012, 35(5): 951-963 |
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| Authors: | WANG Hao LI Xiao-Ming YAN Wei HUANG Ming-He |
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| Affiliation: | 1) 1)(School of Software,Jiangxi Normal University,Nanchang 330022) 2)(State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Electronics Engineering and Computer Science,Peking University,Beijing 100871) |
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| Abstract: | To overcome the weakness of existing AQM algorithms based on the control theory,a novel AQM algorithm called ISTE-PI is designed by not ignoring the time delay term in the TCP/AQM model,introducing short lived TCP flows and UDP flows as the disturbance and using the integral of time-weighted squared error optimization criteria.The ISTE-PI can be used in large delay networks and has the property of fast response,anit UDP flows disturbance and robustness.Since the Internet traffic consists of long lived TCP flows,short lived TCP flows and UDP flows with large time delay,the ISTE-PI algorithm can be better used in the Internet environment. |
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| Keywords: | congestion control active queue management(AQM) ISTE large delay network anti-disturbance |
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