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主动队列管理是一类重要的互联网拥塞控制策略。然而,要调节控制参数以达到性能目标是比较困难的,目前,许多研究工作致力于寻找简明有效的调节方法。提出了网络拥塞控制中主动队列管理的PI/PID控制器的一个简化模型,给出了控制器参数调节的经验公式。仿真结果表明,新的拥塞控制器简单易行,并具有系统响应时间短、网络流量吞吐率高等优点。
Active queue management is a type of important Internet congestion control strategy. However, it is difficult to adjust the control parameters to meet the performance goals. At present, many research efforts are devoted to finding a concise and effective adjustment method. A simplified model of PI / PID controller for active queue management in network congestion control is proposed, and an empirical formula for controller parameter adjustment is given. The simulation results show that the new congestion controller is simple and has the advantages of short system response time and high network traffic throughput.