基于动态面滑模控制的主动队列管理算法  

Active Queue Management Algorithm Based on Dynamic Surface Sliding Mode Control

作　　者：吴瑶 王欣 夏巍 WU Yao;WANG Xin;XIA Wei(Design Institute of Communication Engineering,Shenyang 110000)

机构地区：[1]联参通信工程设计研究院,沈阳110000

出　　处：《舰船电子工程》2018年第3期68-71,共4页Ship Electronic Engineering

摘　　要：针对TCP网络中的拥塞问题,提出了一种基于动态面滑模控制的主动队列管理算法,该算法采用动态面的控制方法,利用一阶积分滤波器来计算虚拟控制的导数,解决了反步法对虚拟控制求导过程中引起的项数膨胀问题,对于TCP/IP网络中存在的模型不确定性、网络参数时变性,该算法具有很强的鲁棒性,仿真结果表明,该算法能够克服系统的不确定性干扰,使队列长度迅速稳定在期望值附近,有效避免拥塞现象的发生。For the phenomenon of congestion in the TCP network,a kind of active queue management algorithm is presented on the base of dynamic surface sliding mode control theory.A drawback with the backstepping technique is the problem of"explosion of complexity",the dynamic surface control technique is proposed to elimimate this problem by introlducing a first-order filter.This proposed approach is robust under the model uncertainty and parameter perturbation.The Simulink simulation prove that the designed controller can overcome the system uncertainty and make the queue length stabling near the expectations quickly,avoid the phenomenon of congestion effectively.

关 键 词：TCP网络 主动队列管理 动态面 滑模控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]