Multi-Red Controller for Router Fault Accommodation

A real time router fault accommodation

“…Therefore to maintain its stability in the TCP/AQM network, this kind of fault should be accommodated in real time. Internet congestion control as FTC problem is discussed in [13] using Multi-RED (random early detection) controller configuration but the work lacks in determining the parameters of controller in real time. The fault scenarios and the parameters of controllers required to maintain the stability of queue length is known a priori.…”

“…Now, in real time if any of the faulty mode occurs the correct controller is selected from the controller bank. This switching control can also be seen in [13] but no supervisor or reconfiguration mechanism is installed in the whole process. Here using the concept of canonical controller every unknown faulty mode is characterized in the region S R .…”

“…The problem of internet congestion is tackled in [11] from the linear control theoretic point of view and from non-linear control in [12]. Recently, few work is done on internet congestion as a FTC problem [13], [14]. From these backgrounds, this paper provides a synthesis of linear canonical controller for a given desired behavior without having the knowledge of exact mathematical model of the system.…”