In computer communication networks, the dynamics of buffer occupancy, y, are modeled as where c is the capacity of the outgoing link (which is a constant) and q is the rate of admission of the incoming traffic. we wish to control the rate of admission so that the occupancy of the buffer is maintained at a desired level, y y. to accomplish this, we define the dynamics of q as follows: gu where u is the control input. (a) what is the transfer function of this system (i. e., plant)? (b) design the simplest controller so that the buffer occupancy of the closed-loop system is maintained at the desired level, y d desired