438 citations · 1k across the 57 of their papers we have counts for
10 papers · 1 filter
Optimal control of linear systems with limited control actions: threshold-based event-triggered control
Burak Demirel, Euhanna Ghadimi, Daniel E. Quevedo +1
We consider a finite-horizon linear-quadratic optimal control problem where only a limited number of control messages are allowed for sending from the controller to the actuator. T…
Stability Analysis of Monotone Systems via Max-separable Lyapunov Functions
Hamid Reza Feyzmahdavian, Bart Besselink, Mikael Johansson
We analyze stability properties of monotone nonlinear systems via max-separable Lyapunov functions, motivated by the following observations: first, recent results have shown that a…
On the trade-off between control performance and communication cost in event-triggered control
Burak Demirel, Vijay Gupta, Daniel E. Quevedo +1
We consider a stochastic system where the communication between the controller and the actuator is triggered by a threshold-based rule. The communication is performed across an unr…
Sub-homogeneous positive monotone systems are insensitive to heterogeneous time-varying delays
Hamid Reza Feyzmahdavian, Themistoklis Charalambous, Mikael Johansson
We show that a sub-homogeneous positive monotone system with bounded heterogeneous time-varying delays is globally asymptotically stable if and only if the corresponding delay-free…
Asymptotic Stability and Decay Rates of Homogeneous Positive Systems With Bounded and Unbounded Delays
Hamid Reza Feyzmahdavian, Themistoklis Charalambous, Mikael Johansson
There are several results on the stability of nonlinear positive systems in the presence of time delays. However, most of them assume that the delays are constant. This paper consi…
Exponential Stability of Homogeneous Positive Systems of Degree One With Time-Varying Delays
Hamid Reza Feyzmahdavian, Themistoklis Charalambous, Mikael Johansson
While the asymptotic stability of positive linear systems in the presence of bounded time delays has been thoroughly investigated, the theory for nonlinear positive systems is cons…
Randomized Consensus with Attractive and Repulsive Links
Guodong Shi, Alexandre Proutiere, Mikael Johansson +1
We study convergence properties of a randomized consensus algorithm over a graph with both attractive and repulsive links. At each time instant, a node is randomly selected to inte…
Deterministic and Stochastic Approaches to Supervisory Control Design for Networked Systems with Time-Varying Communication Delays
Burak Demirel, Corentin Briat, Mikael Johansson
This paper proposes a supervisory control structure for networked systems with time-varying delays. The control structure, in which a supervisor triggers the most appropriate contr…
A Regularized Saddle-Point Algorithm for Networked Optimization with Resource Allocation Constraints
Andrea Simonetto, Tamas Keviczky, Mikael Johansson
We propose a regularized saddle-point algorithm for convex networked optimization problems with resource allocation constraints. Standard distributed gradient methods suffer from s…
Distributed Output-Feedback LQG Control with Delayed Information Sharing
Hamid Reza Feyzmahdavian, Ather Gattami, Mikael Johansson
This paper develops a controller synthesis method for distributed LQG control problems under output-feedback. We consider a system consisting of three interconnected linear subsyst…