I am trying to model a network for performance evaluation on a wireless system with interference cancellation. Then I stumbled upon a question that I needed to answer before I can proceed. Can interference cancellation be likened to the use of earplugs? For instance, if receivers in the network are interference cancellation-enabled i.e they can cancel interference from the transmitters in the network. Does canceling interference imply that the interference within the network as a whole has reduced OR does it mean that "the receivers now have earplugs ON" i.e. although there is interference present within the system they have been able to systematically prevent such interference from "disturbing" their reception. This would be useful for instance in a cognitive network where devices of another class might "want" to harvest such interference.