Tree topologies, which construct spatial graphs with large characteristic path lengths and small clustering coefficients,are ubiquitous in deployments of wireless sensor networks. Small worlds are investigated in tree-based networks. Due to link additions, characteristic path lengths reduce rapidly and clustering coefficients increase greatly. A tree abstract, Cayley tree, is considered for the study of the navigation algorithm, which runs automatically in the small worlds of tree-based networks. In the further study, epidemics in the small worlds of tree-based wireless sen-sor networks on the large scale are studied, and the percolation threshold is calculated, at which the outbreak of the epidemictakes place. Compared with Cayley tree, there is a smaller percolation threshold suffering from the epidemic.
In this paper, a synchronization of discrete multi-agent systems with random network delays was studied. By em...
Lijing Dong 1,2 , Senchun Chai 1,2 , Baihai Zhang 1,2 1. School of Automation, Beijing Institute of Technology, Beijing, 1000812.Key Laboratory of Intelligent Control and Decision of Complex System,Beijing, 100081
We explore the tracking problem of a maneuvering target. Tracking agents with third-order kinematics can communicate with each other via wireless network. The communication network topology is arbitrary rather than switches among several fixed topologies. The information sharing and interaction among agents are position, velocity, and acceleration. Some sufficient conditions of tracking strategy have been proposed. Finally, a numerical example is employed to demonstrate the effectiveness of proposed tracking strategy.
Consensus problem of second-order leader-following multi-agent systems under arbitrary topology is investigated in this paper.Arbitrary topology means the variable topology shifts continuously rather than switches among several different structures.For ensuring the consensus of leader-following multi-agent systems,some sufficient conditions and controller design principles are deduced both for a double-integrator case and a nonlinear case.Certainly,numerical simulations are carried out to prove the feasibility and effectiveness of theory derivation,which vividly illustrates that the following agents can successfully track the leader agent.
Design and stability analysis of nonlinear networked control system with random network delay in both feedback...
Runqi Chai 1 , Lijing Dong 2,3 , Baihai Zhang 2,3 1. College of Science, North China University of Technology, Beijing, 100041 2. School of Automation, Beijing Institute of Technology, Beijing, 1000813.Key Laboratory of Intelligent Control and Decision of Complex System,Beijing, 100081
