GRASP Seminar Series: Spring 2006

March 24, 12:00 p.m., Wu & Chen Auditorium

Karl Johansson
Royal Institute of Technology, Stockholm

"Control over wireless networks: Research challenges and case studies"

Abstract: Information technology is being embedded into a growing range of physical systems linked together through communication networks. Control plays an important role not only in a large number of real-time applications with networked sensors and actuators, but also as an enabling technology that enhances performance and robustness of communication layers. In this talk we will discuss recent results on networked control at KTH linked to both these areas. The problem of control under unreliable and varying network conditions will be addressed. It will also be shown that new feedback control mechanisms can considerably improve the user experience and link utilization of wireless Internet. The presented work is joint with colleagues and students at KTH.

Biography: Karl H. Johansson received an M.S. and a Ph.D. in Electrical Engineering in 1992 and 1997, respectively, both from Lund University in Sweden. He held positions as Assistant Professor at Lund University, 1997-98 and as Visiting Research Fellow at UC-Berkeley, 1998-2000. Currently, he is Associate Professor at the School of Electrical Engineering, Royal Institute of Technology, Sweden, and holds a Senior Researcher Position at the Swedish Research Council. His research interests are in networked control systems, hybrid and embedded control, nonsmooth feedback, and control applications in automotive, automation and communication systems. He serves on the Executive Committees of the European research projects HYCON and RUNES, both on networked embedded systems. He is Associate Editor of Automatica. He was awarded an Individual Grant for the Advancement of Research Leaders from the Swedish Foundation for Strategic Research in 2005. He received the Young Author Prize from the International Federation of Automatic Control in 1996 and the Peccei Award from the International Institute of System Analysis, Austria, in 1993. He received Young Researcher Awards from Scania in 1996 and from Ericsson in 1998 and 1999.


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