I. Introduction
The cooperative control of multiagent systems has attracted considerable attention from researchers in various fields due to its widespread applications, such as in flocking, cooperative unmanned air vehicles, formation control, and distributed sensor networks [1]–[4]. In the cooperative control of multiagent systems, the consensus problem is a critical issue, which means that all agents reach an agreement with respect to certain quantities of interest through interaction among agents. For the consensus problem of multiagent systems, other interesting works also exist, such as consensus problems in the presence of DOS attacks [5] and finite/fixed-time consensus problems [6]–[8].