东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2012, Vol. 33 ›› Issue (11): 1521-1524.DOI: -

• 论著 •    下一篇

TCP网络的非线性自适应滑模控制

叶成荫;井元伟;   

  1. 东北大学信息科学与工程学院;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-01-25
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(61104074);;

Nonlinear adaptive sliding mode control for TCP networks

Ye, Cheng-Yin (1); Jing, Yuan-Wei (1)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-01-25
  • Contact: Ye, C.-Y.
  • About author:-
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摘要： 针对TCP网络存在网络参数高度变化和UDP流的情况,提出了两种非线性自适应滑模控制算法.考虑到系统不确定的上界很难获得,针对系统不确定的上界设计了一种自适应滑模控制器.由于使用了符号函数,该算法不能有效地抑制抖振.为此,设计了一种直接对不确定进行自适应的滑模控制器.仿真结果表明,对不确定的上界自适应的滑模控制器优于对上界自适应的滑模控制器,对上界自适应的滑模控制器优于PI控制器.

关键词: TCP网络, 拥塞控制, 非线性, 自适应滑模控制

Abstract: For the TCP network in the presence of highly variable network parameters and UDP flows, two nonlinear adaptive sliding mode control algorithms were presented. Because the upper bound of the system uncertainties could not easily be obtained, an adaptive sliding mode controller was presented based on the upper bound of the system uncertainties. However, the chattering could not be eliminated effectively with this algorithm because of the using of sign function. So, an adaptive sliding mode controller was presented to directly adapt the system uncertainties. Simulation results demonstrated that the adaptive sliding mode controller for the system uncertainties is superior to that for the upper bound, and the adaptive sliding mode controller for the upper bound is superior to PI controller.

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