摘要
随着Internet技术的持续发展,Internet发生严重拥塞的危险性更加令人关注,而有效的拥塞控制机制是保证Internet稳定运行的关键因素之一。该文提出了一种基于多级网络节点的单神经元自适应PID闭环控制机制并对其进行了相关性能的分析。在多级网络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输入和工作条件下的仿真,结果显示,在所设计的基于概率丢弃策略的闭环控制机制下,各级节点队列稳定性好且具有较好的鲁棒性。
With the constant development of Intemet, the possibility of severe Internet congestion collapse receives much more concern. Efficient congestion control mechanism is one of the key elements to the stability of Internet. To solve the congestion problems, a PID control mechanism based on single nerve cell self-adaptive control algorithm is proposed and analyzed. Simulation that runs on the OPNET software is carried out on multilevel node traffic model. Simulation results show that the proposed mechanism works well in terms of stability of the all levels queue size and system robustness.
出处
《计算机工程》
CAS
CSCD
北大核心
2008年第1期125-127,共3页
Computer Engineering
基金
北京市教委基金资助重点项目(KM200310009033)
北京市现场总线及自动化重点实验室开放课题基金资助项目(200300015)
关键词
概率丢弃
多级网络
队列闭环控制
probability dropping
multilevel network
closed loop control of queue
