Department of Electrical Engineering and Automation

Distributed and Networked Control Systems

We are now witnessing an explosion in networked systems: everything is connected and massive amounts of devices are required to be coordinated.
Aalto-yliopisto, liput / kuvaaja: Aino Huovio

Scientific breakthroughs enable new technology whereas at the same time, technology makes it into transformative applications (see, for example, the Internet and wireless communication systems). It is evident that the advancement of smart devices with impressive sensing, computing and control capabilities makes it possible for our cities, transportation systems, factories and living environments to become more intelligent, energy-efficient, safe and secure.  We are now witnessing an explosion in networked systems: everything is connected and massive amounts of devices are required to be coordinated. However, the overall system is distributed and a service should be delivered cooperatively, rather than by a unique provider that knows and owns all data. Many researchers and practitioners are interested in understanding the complexity and possible solution approaches, since distributed systems apply to different areas and applications and are anticipated to play a central role in the near future. 

In applications that can be characterized as distributed systems, dynamical systems are controlled or communicate and interact with other dynamical systems via a network of sensors and actuators transmitting and receiving information over a digital communication network. Real communication channels suffer from various problems (such as limited capacity, bit errors, erasures and random delays) that can affect the stability and/or performance of the whole system. Given the multidisciplinary nature of distributed systems, many studies are necessarily restricted to contributions that solve problems partially, ignoring important aspects of such systems due to modular approaches to the problem. In order to be able to deal with distributed systems, we need to better understand information, and the interplay between information and decisions. However, communication and control/decision making have traditionally been treated separately whereas recent emerging applications necessitate a more holistic approach, since communication and control are no longer independent. 

The main objective of this line or research is to develop the framework on how to treat the interplay between communications and control to solve distributed control and optimization problems arising in distributed systems and in Cyber-Physical Systems (CPS), in general. 

The group is led by Professor Themistoklis Charalambous

Latest publications

Generalizations of Nonanticipative Rate Distortion Function to Multivariate Nonstationary Gaussian Autoregressive Processes

Charalambos D. Charalambous, Christos Kourtellaris, Themistoklis Charalambous, Jan H. Van Schuppen 2019 Proceedings of the 58th IEEE Conference on Decision and Control, CDC 2019

Laplacian-based matrix design for finite-time average consensus in digraphs

Themistoklis Charalambous, Christoforos N. Hadjicostis 2019 2018 IEEE Conference on Decision and Control, CDC 2018

Privacy-Preserving Average Consensus over Digraphs in the Presence of Time Delays

Themistoklis Charalambous, Nikolas E. Manitara, Christoforos N. Hadjicostis 2019 Proceedings of the 57th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2019

Relay-pair selection in buffer-aided successive opportunistic relaying using a multi-antenna source

Themistoklis Charalambous, Su Min Kim, Nikolaos Nomikos, Mats Bengtsson, Mikael Johansson 2019 Ad Hoc Networks

Robust trajectory planning of autonomous vehicles at intersections with communication impairments

Neha Chohan, Mohammad A. Nazari, Henk Wymeersch, Themistoklis Charalambous 2019 Proceedings of the 57th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2019

Timer-based distributed channel access for control over unknown unreliable time-varying communication channels

Tahmoores Farjam, Themistoklis Charalambous, Henk Wymeersch 2019 Proceedings of the 18th European Control Conference, ECC 2019

Timer-based distributed channel access in networked control systems over known and unknown gilbert-elliott channels

Tahmoores Farjam, Themistoklis Charalambous, Henk Wymeersch 2019 Proceedings of the 18th European Control Conference, ECC 2019

On the stability of the Foschini-Miljanic algorithm with uncertainty over channel gains

Giannis Moutsinas, Themistoklis Charalambous, Weisi Guo 2019 Proceedings of the 18th European Control Conference, ECC 2019

Hybrid NOMA/OMA With Buffer-Aided Relay Selection in Cooperative Networks

Nikolaos Nomikos, Themistoklis Charalambous, Demosthenes Vouyioukas, George K. Karagiannidis, Risto Wichman 2019 IEEE Journal of Selected Topics in Signal Processing

A Distributed Mode Selection Scheme for Full-Duplex Device-to-Device Communication

Demia Della Penda, Risto Wichman, Themistoklis Charalambous, Gabor Fodor, Mikael Johansson 2019 IEEE Transactions on Vehicular Technology
More information on our research in the Research database.
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