This paper deals with adaptive synchronization of chaos in the presence of time-varying communication-delays. We consider two bidirectionally coupled systems that seek to synchronize through a signal that each system sends to the other one and is transmitted with an unknown time-varying delay. We show that an appropriate adaptive strategy can be devised that is successful in dynamically identif...

We present a real-time feedback control strategy to optimize the dynamic performance of a computer communication network. In previous studies closely related to this topic, feedback delay, arising from communication delay, was shown to degrade system performance. Considering this negative impact of delay, we propose a new control law which predicts the traffic in advance and exercises control b...

This paper investigates the impact of electric vehicle (EV) aggregator with communication time delay on stability regions and margins a single-area load frequency control (LFC) system. Primarily, graphical method characterizing boundary locus is implemented. For given delay, computes all stabilizing pro-portional-integral (PI) controller gains, which constitutes region in parameter space PI con...

Design of communication protocols for real time estimation and control is an important problem in cyberphysical systems. Control performance is dependent on both the throughput and the delay characteristics of the communication network. We consider the problem of estimation and control of a linear time-invariant process across a communication channel that stochastically introduces both a time-v...

Time delay plays a critical role in the performance of real-time Networked Control Systems (NCS). It can destabilise the NCS as it deteriorates the performance and stability of networked control systems. Communication networks inevitably introduce delays in NCS. Therefore, it is necessary to compensate the time delay. The time taken by the system depends upon the characteristics of the network ...

This paper focuses on the delay induced Hopf bifurcation in a dual model of Internet congestion control algorithms which can be modeled as a time-delay system described by a one-order delay differential equation (DDE). By choosing communication delay as the bifurcation parameter, we demonstrate that the system loses its stability and a Hopf bifurcation occurs when communication delay passes thr...

In this paper, two controllers are proposed for bilateral teleoperation systems with communication time delay. The first one guarantees the tracking of slave-master outputs, while the second one guarantees the transparency. Communication time delay appears in the control loop of the second controller, and finite spectrum assignment method is used to design this controller such that the resultin...

We investigate synchronization in the presence of delay time modulation for application to communication. We have observed that the robust synchronization is established by a common delay signal and its threshold is presented using Lyapunov exponents analysis. The influence of the delay time modulation in chaotic oscillators is also discussed.