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该文针对计算机高速互联网中最大服务交通流即能控交通流的拥塞调节问题,提出了一种基于网络节点输出速率调节的非线性拥塞控制机制并对其进行了稳定性和鲁棒性分析。克服了传统的基于输入端控制需要信源端和传输通道多重支持的约束。在单个节点的业务流模型基础上,将信源输入视为系统的扰动,通过调节输出速率来控制节点队列稳定。运用OPNET仿真软件对其进行了不同输入和工作条件下的仿真,结果显示,在所设计的非线性模糊PID队列控制机制下,队列稳定性好且具有较好的鲁棒性和抗干扰性。
In this paper, we propose a new congestion control mechanism based on output rate of network nodes, which is the largest service traffic flow in computer high speed internet, that is traffic flow control. This paper presents a stability and robustness analysis of the nonlinear congestion control mechanism. Overcomes the traditional constraint of multiple support of source end and transmission channel based on input control. Based on the traffic model of a single node, the input of the source is regarded as the disturbance of the system, and the node queue is controlled by adjusting the output rate. The OPNET simulation software was used to simulate it under different input and working conditions. The results show that the proposed algorithm has good stability and good robustness and anti-interference under the non-linear fuzzy PID control mechanism.