This part provides the theoretical background for our analysis. Very first, we examine the product which we use in the simulation. The design is a close approximation of a solitary actual-lifestyle router we use in our testbed ecosystem. Both, the product and unit we use are centered on the one packets queue. The 2nd component of the part presents the strategy of calculation the response of (textrmPI^lambda textrmD^mu) controller utilised as AQM system.
The description of the AQM queue was presented in29 as an example of an IoT gateway. In general, we product the process incorporating the AQM system as the queue with the controller decides about the packet acceptance or rejection. Graphical illustration of the model we use is presented in Fig. 1.
In the offered design, there are two key parameters. The (lambda) is