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提出了一种基于网络前端速率的单参数模糊自适应PID信元队列控制机制并对其进行了稳定性和鲁棒性分析。在3个节点的业务流模型基础上,运用OPNET仿真软件对其进行了不同工作条件下的仿真。结果显示,在所设计的单参数模糊自适应PID控制机制下,PID参数收敛较快,队列稳定性好且具有较好的抗扰性和鲁棒性。
A single parameter fuzzy self - adaptive PID queue control mechanism based on network front - end speed is proposed and its stability and robustness are analyzed. Based on the 3-node service flow model, the OPNET simulation software was used to simulate it under different working conditions. The results show that under the single-parameter fuzzy adaptive PID control scheme designed, the PID parameters converge quickly, the queue stability is good and the noise immunity and robustness are good.