  Finite-time stability of networked control systems under Denial of Service
(DoS) attacks are investigated in this paper, where the communication between
the plant and the controller is compromised at some time intervals. Toward this
goal, first an event-triggered mechanism based on the variation rate of the
Lyapunov function is proposed such that the closed-loop system remains
finite-time stable (FTS) and at the same time, the amount data exchange in the
network is reduced. Next, the vulnerability of the proposed event-triggered
finite-time controller in the presence of DoS attacks are evaluated and
sufficient conditions on the DoS duration and frequency are obtained to assure
the finite-time stability of the closed-loop system in the presence of DoS
attack where no assumption on the DoS attack in terms of following a certain
probabilistic or a well-structured periodic model is considered. Finally, the
efficiency of the proposed approach is demonstrated through a simulation study.
