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最近30年来,离散滑模控制(DSMC)被加以研究.在现有离散滑模控制的文献中,不但有完善的理论,并且有应用的实例.计算机通信网络(涵盖有线和无线情形)的发展给控制专家提出了具有挑战性的问题.此类系统的响应很快,因此要求控制器必须能快速反应.同时,此类系统中的数据包和路由采用固有的切换方式.因此,在该网络系统中采用与其固有切换类似的滑动模态控制成为一个有趣的问题.本文应用离散滑模控制方法来解决通信网络的拥塞控制问题.在过去几年中,许多反馈控制方法被用来解决通信网络的许多问题,如流量控制,拥塞控制和功率控制.本文提出了一种新的应用滑动模态控制来实现通信网络拥塞控制的方法.由于计算机通信网络处理的是数字数据且在本质上是离散的,因此其是一类离散时间系统,因而可应用离散滑模控制.在该系统中,比特率保持恒定不变,通过调整缓冲区的长度来控制拥塞.出于模拟与分析的目的,缓冲区的最大长度被设为250bit.本文展示了离散滑模控制能够实现通讯网络不同特性的控制.
In the last 30 years, discrete sliding mode control (DSMC) has been studied.In the existing literature of discrete sliding mode control, there are not only well-developed theories but also applied examples.Development of computer communication networks (both wired and wireless) This poses challenging problems for control experts, who respond quickly enough to require controllers to react quickly, while the inherent switching of packets and routes in such systems, It is an interesting problem to adopt sliding mode control similar to its inherent switching in the system.In this paper, discrete sliding mode control is used to solve the congestion control problem of communication networks.In the past few years, many feedback control methods have been used to solve the problem of communication network Such as flow control, congestion control and power control.This paper presents a new method of applying sliding mode control to achieve congestion control of communication networks.As computer communication networks handle digital data and are essentially discrete , So it is a type of discrete time system, which can be applied to discrete sliding mode control in the system, the bit rate remains constant, Adjusting the length of the buffer to control congestion. For the purposes of simulation and analysis, the maximum length of the buffer is set to 250bit. This article shows discrete sliding mode control enables control of different characteristics of the communication network.