An Effective Controller Design for Active Queue Management Scheme Assisting TCP Flows

In this study, a control theoretical approach is brought to design and examine different flow controllers for congestion control in communicating networks. First, an Effective controller is planned for explicit rate congestion control in individual chokepoint network. The controller ensures constancy Effectiveness with respect to ambiguous time varying multiple time delays in different channels brings the queue length of the chokepoint client to a desirable value asymptotically and fulfills a weighted fairness condition. The use of the outgoing link capability is further investigated to improve functioning. As well, a few variations on a linear model of Active Queue Management assisting TCP flows are used to design an Effective AQM controller and to examine the functioning and stableness of Multilevel ECN and Traffic load based AQM strategies.