Many current challenges in the context of real-time feedback control require that the communication medium must be shared between several sensors, controllers and actuators, and other (possibly unknown) applications. These challenges include the developments of cooperative adaptive cruise control (CACC) and regulation of large-scale (city-wide) systems such as water and power distribution systems. Sharing a communication channel naturally implies that network behaviour related to properties that are crucial to real-time feedback control, such as the data rate, will be uncertain.

The usage of wired and especially wireless communication networks in control systems offer many benefits such as the ease of maintenance and installation, large flexibility, the ability to distribute the control system and the possibility to measure in possibly harsh environments and on moving objects. However, it is generally known that the use of a shared communication network can introduce uncertainties that can degrade performance and can even threaten closed-loop stability. Specifically, several network-induced effects can be introduced in the closed-loop system:

the presence of a shared communication medium

varying sampling/transmission intervals

varying transmission delays

packet dropouts

quantization

Networked control theory, which studies the properties of control systems such as the one schematically depicted above is built upon the realization that there exist many relevant real-time feedback control applications where communication between sensors, actuators and controllers is not always perfect. So, performance limitations related to such imperfect communication need to be established before all the advantages of these so-called "networked control systems" (NCSs) can be harvested.

Although current advances in telecommunications are steadily expanding
the diameter and distance of the data pipe, the uncertainty of networked
traffic worries and deters control engineers from using this communication
medium for real-time feedback control applications. Trusty and reliable,
wired point-to-point communication is what control engineers conventionally rely
on. However, breaking free of the dependence on dedicated wiring for communication will solve many current challenges as well as open up many interesting possibilities, and, therefore forms a highly relevant research field.

2018 S.H.J. Heijmans, D. Nesic, R. Postoyan, W.P.M.H. Heemels 7th IFAC Workshop on Distributed Estimation and Control in Networked Systems (NECSYS) 2018, Groningen, The Netherlands

Multirate control for high accuracy and low cost: dual-stage experiments

2018 van Zundert, J. C. D., Oomen, T. A. E., Aangenent, W. H. T. M., Heemels, W. P. M. H. 4th DSPE Conference on Precision Mechatronics, DSPE2018, 4-5 September 2018, Sint Michielsgestel, The Netherlands.

Heterogeneous Multi-Agent Resource Allocation through Multi-Bidding with Applications to Precision Agriculture

2018 Cobbenhagen, R., Antunes, D., Van de Molengraft, R. Heemels, W.P.M.H. 7th IFAC Workshop on Distributed Estimation and Control in Networked Systems (NECSYS) 2018, Groningen, The Netherlands

Time-Regularized and Periodic Event-Triggered Control for Linear Systems

2018 D.P. Borgers, V.S. Dolk, G.E. Dullerud, A.R. Teel, W.P.M.H. Heemels in "Tarbouriech S., Girard A., Hetel L. (eds). Lecture Notes in Control and Information Sciences. Vol. 475. "Control Subject to Computational and Communication Constraints. "", Springer 475, p. 121-149

Event-triggered Control Systems under Denial-of-Service Attacks

2017 V.S. Dolk, P. Tesi, C. De Persis, W.P.M.H. Heemels IEEE Transactions on Control of Network Systems "(Full papers for Special Issue on Secure Control of Cyber Physical Systems)" 4(1), p. 93 - 105

Suboptimal Event-triggered Control over Unreliable Communication
Links with Experimental Validation

May, 2017 B. Asadi Khashooei, B. van Eekelen, D. J. Antunes and W. P. M. H. Heemels 3rd International Conference on Event-based Control, Communication and Signal Processing 2017, Madeira, Portugal

2017 A.T.J.R. Cobbenhagen, D.J. Antunes, M.J.G. van de Molengraft, W.P.M.H. Heemels IEEE Conference on Decision and Control (CDC) 2017, Melbourne, Australia

Performance analysis and controller improvement for linear systems with (m,k)-firm data losses

2016 E.P. van Horssen, A.R. Baghban Behrouzian, D. Goswami, D. Antunes, T. Basten, W.P.M.H. Heemels European Control Conference (ECC) 2016, Aalborg, DK, p. 2571-2577

Sample-drop firmness analysis of TDMA-scheduled control applications

2016 A.R.B. Behrouzian, D. Goswami, M. Geilen, M. Hendriks, H. Alizadeh Ara, E.P. van Horssen, W.P.M.H. Heemels, T. Basten IEEE Symposium on Industrial Embedded Systems (SIES), p. 1-8

Switching data-processing methods in a control loop: Trade-off between delay and probability of data acquisition

2016 E.P. van Horssen, D. Antunes, W.P.M.H. Heemels
6th IFAC Workshop on Distributed Estimation and Control in Networked Systems (NECSYS) 2016, Tokio, Japan

Solution Concepts and Analysis of Spatially Invariant Hybrid Systems:
Exploring Zeno and beyond

2016 S.H.J. Heijmans, D.P. Borgers, W.P.M.H. Heemels 10th IFAC Symposium on Nonlinear Control Systems (NOLCOS) 2016. Monterey, California, USA "IFAC Papers Online 49-18", p. 164-169

Numerical Evaluation of a Robust Self-Triggered MPC Algorithm

2016 F.D. Brunner, W.P.M.H. Heemels, F. Allgower 6th IFAC Workshop on Distributed Estimation and Control in Networked Systems (NECSYS) 2016, Tokio, Japan

Stability analysis of networked control systems with direct-feedthrough terms: Part I - The nonlinear case

2016 N. Noroozi, R. Postoyan, D. Nesic, S.H. J. Heijmans, W.P.M.H. Heemels IEEE Conference on Decision and Control (CDC), Las Vegas, NV, USA, 2016, p. 6820-6825

Experimental validation of an event-triggered policy for remote sensing and control with performance guarantees

2016 B. Van Eekelen, N.S. Rao, B. Asadi Khashooei, D. Antunes, W.P.M.H. Heemels Conference on Event-Based Control, Communication and Signal Processing (EBCCSP) 2016

Stability analysis of networked control systems with direct-feedthrough terms: Part II - The linear case

2016 S.H. J. Heijmans, R. Postoyan, N. Noroozi, D. Nesic, W.P.M.H. Heemels IEEE Conference on Decision and Control (CDC), Las Vegas, NV, USA, 2016, p. 5974-5979

Resource utilization and Quality-of-Control trade-off for a composable platform

2016 J. Valencia, E.P. van Horssen, D. Goswami; W.P.M.H. Heemels, K. Goossens Design, Automation & Test in Europe Conference & Exhibition (DATE), p. 654-659

On Observability in Networked Control Systems with Packet Losses

2015 R.M. Jungers, A. Kundu, W.P.M.H. Heemels Annual Allerton Conference on Communication, Control, and
Computing 2015, Urbana-Champaign, USA, p. 238-243

Communication Scheduling in Robust Self-Triggered MPC for Linear Discrete-Time Systems

2015 F.B. Brunner, T.M.P. Gommans, W.P.M.H. Heemels, F. Allgower IFAC Workshop on Distributed Estimation and Control in Networked Systems (NECSYS) 2015, Philadelphia, USA "(IFAC-PapersOnLine, Volume 48, Issue 22, 2015, Pages 132-137)", p. 132-137

Stability Analysis of Spatially Invariant Interconnected Systems with Networked Communication

2015 S.H.J. Heijmans, D.P. Borgers, W.P.M.H. Heemels IFAC Workshop on Distributed Estimation and Control in Networked Systems (NECSYS) 2015, Philadelphia, USA "(IFAC-PapersOnLine, Volume 48, Issue 22, 2015, Pages 221-226)", p. 221-226

Feedforward for Multi-Rate Motion Control: Enhanced Performance and Cost-Effectiveness

2015 J.C.D. van Zundert, J.L.C. Verhaegh, W.H.T.M. Aangenent, T. Oomen, D. Antunes and W.P.M.H. Heemels American Control Conference (ACC) 2015, Chicago, USA, p. 2831-2836

Controllability of Linear Systems Subject to Packet Losses

2015 R.M. Jungers and W.P.M.H. Heemels IFAC Conference on Analysis and Design of Hybrid Systems (ADHS) 2015, Atlanta, USA. "(IFAC-PapersOnLine, Volume 48, Issue 27, 2015)", p. 80-85

2015 W.P.M.H. Heemels, K.H. Johansson and P. Tabuada, in "Encyclopedia of Systems and Control (J. Baillieul and Samad, T. - Eds.) doi: 10.1007/978-1-4471-5058-9_97", Springer, p. 384-391

2015 W.P.M.H. Heemels, R. Postoyan, M.C.F. Donkers, A.R Teel, A. Anta, P. Tabuada, and D. Nesic in "Event-based control and signal processing, M. Miskowicz (Ed.)", CRC Press/ Taylor & Francis

Resource-aware control and dynamic scheduling in CPS

2015 W.P.M.H. Heemels in "Cyber-physical systems: Design, modelling and evaluation. 5th International workshop CyPHY 2015, Amsterdam, The Netherlands. ", Springer LNCS 9361, p. 1-7

Minimum Attention Control for Linear Systems: A Linear Programming Approach

June, 2014 M.C.F. Donkers, P. Tabuada, and W.P.M.H. Heemels Discrete Event Dynamic Systems Theory and Applications "Special Issue: Event-Based Control and Optimization" 24(2), p. 199-218

Stability Analysis of Networked and Quantized Linear Control Systems

November, 2013 S.J.L.M. van Loon, M.C.F. Donkers, N. van de Wouw, and W.P.M.H. Heemels Nonlinear Analysis: Hybrid Systems "Special Issue: IFAC Conference on Analysis and Design 2012" 10(C), p. 111-125

Stability analysis of nonlinear networked control systems with asynchronous communication: A small-gain approach

December, 2013 W.P.M.H. Heemels, D.P. Borgers, N. Van De Wouw, D. Nesic and A.R. Teel IEEE Conference on Decision and Control (CDC) 2013, Florence, Italy, p. 4631-4637

Periodic event-triggered control for nonlinear systems

December, 2013 R. Postoyan, A. Anta, W.P.M.H. Heemels, P. Tabuada and D. Nesic IEEE Conference on Decision and Control (CDC) 2013, Florence, Italy, p. 7397-7402

String Stability of Interconnected Vehicles Under Communication Constraints

December, 2012 S. Oncu, N. van De Wouw, W.P.M.H. Heemels and H. Nijmeijer IEEE Conference on Decision and Control (CDC) 2012, Hawaii, USA, p. 2459-2464

Stability Analysis of Networked Control Systems with Periodic Protocols and Uniform Quantizers

June, 2012 S.J.L.M. van Loon, M.C.F. Donkers, N. van de Wouw, and W.P.M.H. Heemels IFAC Conference on Analysis and Design of Hybrid Systems (ADHS) 2012, Eindhoven, The Netherlands, p. 186-191

Self-triggered MPC for constrained linear systems and quadratic costs

August, 2012 J.D.J. Barradas Berglind, T.M.P. Gommans and W.P.M.H. Heemels IFAC Conference on Nonlinear Model Predictive Control (NMPC) 2012, Noordwijkerhout, The Netherlands, p. 342-348

Proceedings of the 4th IFAC Conference on Analysis and Design of Hybrid Systems (ADHS12). Eindhoven, The Netherlands

June, 2012 W.P.M.H. Heemels, B. De Schutter, and M. Lazar (Eds.) International Federation of Automatic Control (IFAC) "Analysis and Design of Hybrid Systems book link"

Comparison of Overapproximation Methods for Stability Analysis of Networked Control Systems

April, 2010 W.P.M.H. Heemels, N. van de Wouw, R.H. Gielen, M.C.F. Donkers, L. Hetel, S. Olaru, M. Lazar, J. Daafouz and S.I. Niculescu Hybrid Systems: Computation and Control (HSCC) 2010, Stockholm, Sweden, p. 181-191

Alternative frequency-domain stability criteria for discrete-time networked systems with multiple delays

September, 2010 W.P.M.H. Heemels, R.J.E. Merry and T.A.E. Oomen IFAC Workshop on Distributed Estimation and Control in Networked Systems (NECSYS), Annecy, France, p. 73-78

A Model Predictive Control Approach for Stochastic Networked Control Systems

September, 2010 D. Bernardini, M.C.F. Donkers, A. Bemporad and W.P.M.H. Heemels IFAC Workshop on Distributed Estimation and Control in Networked Systems (NECSYS), Annecy, France, p. 7-12

Comparison of Stability Characterisations for Networked Control Systems

December, 2009 L. Hetel, M.B.G. Cloosterman, N. van de Wouw, W.P.M.H. Heemels, J. Daafouz and H. Nijmeijer IEEE Conference on Decision and Control (CDC) 2009, Shanghi, China, p. 7911-7916

Networked and Quantized Control Systems with Communication Delays

December, 2009 W.P.M.H. Heemels, D. Nesic, A.R. Teel and N. van de Wouw IEEE Conference on Decision and Control (CDC) 2009, Shanghi, China, p. 7929-7935

Stability Analysis of Networked Control Systems using a Switched Linear Systems Approach

2009 M.C.F. Donkers, L.L. Hetel, W.P.M.H. Heemels, N. van de Wouw and M. Steinbuch in "Lecture Notes in Computer Science, 12th International Conference on Hybrid Systems: Computation and Control 2009, San Francisco, USA", Springer 5469, p. 150-164

Stability of networked control systems with large delays

December, 2007 M.B.G. Cloosterman, N. van de Wouw, W.P.M.H. Heemels and H. Nijmeijer IEEE Conference on Decision and Control (CDC) 2007, New Orleans, USA, p. 5017-5022

Analysis and experimental validation of a sensor-based event-driven controller

June, 2007 J.H. Sandee, W.P.M.H. Heemels, S.B.F. Hulsenboom and P.P.J. van den Bosch American Control Conference (ACC) 2007, New York, USA, p. 2867-2874

Analysis and experimental validation of a sensor-based event-driven controller

2007 J.H. Sandee, W.P.M.H. Heemels, S.B.F. Hulsenboom and P.P.J. van den Bosch Philips Conference on Applications of Control Technology (PACT) 2007, Eindhoven, The Netherlands

2007 J.H. Sandee, W.P.M.H. Heemels and P.P.J. v.d. Bosch in "Lecture Notes in Computer Science. 10th International Workshop on Hybrid Systems: Computation and Control 2007, Pisa, Italy", Springer, p. 762-765

Robust stability of networked control systems with time-varying network-induced delays

December, 2006 M.B.G. Cloosterman, N. van de Wouw, W.P.M.H. Heemels and H. Nijmeijer IEEE Conference on Decision and Control (CDC) 2006, San Diego, USA, p. 4980-4985

Asynchronous measurement and control: a case study on motor synchronisation

1999 W.P.M.H. Heemels, R.J.A. Gorter, A. van Zijl, P.P.J. v.d. Bosch, S. Weiland, W.H.A. Hendrix and M.R. Vonder Control Engineering Practice 7(12), p. 1467-1482