Active Queue Management Algorithm Based on Dynamic Output Feedback Control

GE Long; SUN Jin-sheng; WANG Zhi-quan

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Active Queue Management Algorithm Based on Dynamic Output Feedback Control

更新时间：2025-07-16

- Active Queue Management Algorithm Based on Dynamic Output Feedback Control
- Acta Electronica Sinica Vol. 38, Issue 12, Pages: 2816-2821(2010)
- 作者机构：
  
  1. 南京理工大学自动化学院,江苏,南京,210094
  2. 常熟市科学技术局,江苏常熟,215500
  3. 南京理工大学自动化学院江苏南京,210094
  4. 常熟市科学技术局江苏常熟,215500
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP393
- Published：2010
- 稿件说明：
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GE Long, SUN Jin-sheng, WANG Zhi-quan. Active Queue Management Algorithm Based on Dynamic Output Feedback Control[J]. Acta Electronica Sinica, 2010, 38(12): 2816-2821.
DOI：

GE Long, SUN Jin-sheng, WANG Zhi-quan. Active Queue Management Algorithm Based on Dynamic Output Feedback Control[J]. Acta Electronica Sinica, 2010, 38(12): 2816-2821. DOI：

摘要

针对网络拥塞控制的不确定时滞特性

提出了一种基于动态输出反馈控制(DOFC)的主动队列管理(AQM)算法.建立了TCP/AQM系统的时滞有界模型

给出了判定闭环AQM系统稳定的充分性条件

以及基于线性矩阵不等式的动态输出反馈控制器参数设计方法.仿真结果表明

该算法在大时滞的网络环境中

能迅速地将队列长度收敛到目标长度附近

且在特征参数变化的网络环境中具有较强的鲁棒性.

Abstract

Considering the uncertain time-delay characteristic of network congestion control

a novel Active Queue Management (AQM) algorithm based on Dynamic Output Feedback Control (DOFC) is proposed.The model of TCP/AQM is converted into a linear system with bounded time-delay

sufficient condition to judge the stability of the closed-loop system is deduced

and approach to design the parameter of DOFC based on linear matrix inequality is recommended.Simulation results show that the proposed algorithm is able to stabilize the queue length to the target value quickly in condition that network configuration parameters are large delay

and is more robust in dynamic network environment with uncertain characteristic parameters.

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