438 citations · 1k across the 57 of their papers we have counts for
10 papers · 1 filter
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…
Emergent Behaviors over Signed Random Networks in Dynamical Environments
Guodong Shi, Alexandre Proutiere, Mikael Johansson +2
We study asymptotic dynamical patterns that emerge among a set of nodes that interact in a dynamically evolving signed random network. Node interactions take place at random on a s…
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…
Stochastic Online Shortest Path Routing: The Value of Feedback
M. Sadegh Talebi, Zhenhua Zou, Richard Combes +2
This paper studies online shortest path routing over multi-hop networks. Link costs or delays are time-varying and modeled by independent and identically distributed random process…
The Evolution of Beliefs over Signed Social Networks
Guodong Shi, Alexandre Proutiere, Mikael Johansson +2
We study the evolution of opinions (or beliefs) over a social network modeled as a signed graph. The sign attached to an edge in this graph characterizes whether the corresponding…
Benchmarking Practical RRM Algorithms for D2D Communications in LTE Advanced
Gabor Fodor, Marco Belleschi, Demia D. Penda +3
Device-to-device (D2D) communication integrated into cellular networks is a means to take advantage of the proximity of devices and allow for reusing cellular resources and thereby…
Optimal parameter selection for the alternating direction method of multipliers (ADMM): quadratic problems
Euhanna Ghadimi, André Teixeira, Iman Shames +1
The alternating direction method of multipliers (ADMM) has emerged as a powerful technique for large-scale structured optimization. Despite many recent results on the convergence p…
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…
Optimal scaling of the ADMM algorithm for distributed quadratic programming
André Teixeira, Euhanna Ghadimi, Iman Shames +2
This paper presents optimal scaling of the alternating directions method of multipliers (ADMM) algorithm for a class of distributed quadratic programming problems. The scaling corr…
A Buffer-aided Successive Opportunistic Relay Selection Scheme with Power Adaptation and Inter-Relay Interference Cancellation for Cooperative Diversity Systems
Nikolaos Nomikos, Themistoklis Charalambous, Ioannis Krikidis +3
In this paper we consider a simple cooperative network consisting of a source, a destination and a cluster of decode-and-forward half-duplex relays. At each time-slot, the source a…