  In this article, we propose a very efficient technique to enhance the
dynamical robustness for a network of mean-field coupled oscillators
experiencing aging transition. In particular, we present a control mechanism
based on delayed negative self-feedback, which can effectively enhance
dynamical activities in a mean-field coupled network of active and inactive
oscillators. Even for a small value of delay, robustness gets enhanced to a
significant level. In our proposed scheme, the enhancing effect is more
pronounced for strong coupling. To our surprise even if all the oscillators
perturbed to equilibrium mode delayed negative self-feedback able to restore
oscillatory activities in the network for strong coupling strength. We
demonstrate that our proposed mechanism is independent of coupling topology.
For a globally coupled network, we provide numerical and analytical treatment
to verify our claim. Also, for global coupling to establish the generality of
our scheme, we validate our results for both Stuart-Landau limit cycle
oscillators and chaotic Rossler oscillators. To show that our scheme is
independent of network topology, we also provide numerical results for the
local mean-field coupled complex network.
