From the Trojan War to non-intrusive medical monitoring, from potato harvesting to machine tools, waves are omnipresent. If it is undeniable that some people are more sensitive than others to waves and that their effects are debated, in the field of very low consumption there are many applications that would not be able to operate without them.
During my presentation, we’ll see that it is possible to communicate quickly while consuming less than the leakage current of the batteries. The number of applications in which the battery is no longer necessary is constantly growing. Finally, healthcare is an area where waves are already and increasingly becoming important. This ranges from wearable medical devices to advanced cancer detection, not to mention medical monitoring of patients and elderly people without the need for them to wear devices.
- 17:15: Introduction by Prof. Rüdiger Urbanke, Dean of the School of Computer and Communication Sciences
- 17:30: Honorary Lecture of Prof. Jean-Dominique Decotignie - « A journey through the exciting world of waves »
- 18:25: Presentation of the Honorary Lesson Diploma by Mr. Matthias Gaümann, Vice President for Operations at EPFL
- 18:30: Aperitif
After studying electrical engineering at EPFL, Jean-Dominique Decotignie obtained a scholarship at the University of Tokyo where he started his PhD research on optical fibers. He finished his PhD at EPFL in the Laboratory of Electromagnetism and Acoustics directed by Professor Gardiol. He then joined the newly created Laboratory of Technical Informatics directed by Professor Nussbaumer. There he conducted research on industrial local area networks and more particularly on field buses, which earned him the title of Fellow of the IEEE. From 1988 to 1991, at EPFL, he directed the School Project "numerical control of machines" and then the Laboratory of Productics. These two entities group together 13 laboratories in 5 departments in the field that we would call "Industry 3.0" today. He was appointed adjunct professor in 1990 and assistant professor in 1992. He played a pioneering role in the Swiss participation in European projects (COMETT II, ESPRIT II and III) from 1987.
From 1992 to 1996, Jean-Dominique Decotignie was co-director of the Technical Computing Laboratory, whose director Henri Nussbaumer played a key role in the creation of the Communications Systems section. The members of this laboratory defended more than 10% of the EPFL theses in 1996. In 1995 and 1996, he took a sabbatical at the University of California at Berkeley, the University of Maryland at College Park, and the IBM La Gaude Study and Research Center in France.
In early 1997, he joined the Swiss Center for Electronics and Microtechnology (CSEM) in Neuchâtel where he created and managed the "real time and protocols" sector while remaining a adjunct professor and lecturer at EPFL. At CSEM, his team conducts research on communication networks subject to hard constraints such as response time, power consumption or reliability. Since 1999, it has focused on short-range wireless networks, playing a pioneering role in the Internet of Things. The protocols developed by the group are among the best according to international studies. From 1997 to 2019, the group has participated in more than 25 European projects and transferred its technology to numerous industrial partners. During this time, Jean-Dominique Decotignie continues to supervise theses and has widely participated in the scientific activity in his field through participation in the program committees of major conferences and as a reviewer for journals in the field.
In addition to his professional activity, Jean-Dominique Decotignie has served in various associations: Chairman of the IEEE Swiss Section, IEEE Region 8 (Europe) representative on the IEEE Board of Directors, Treasurer and Vice President of A3E2PL (predecessor of EPFL alumni), A3 Foundation. He is also the Vice-President of the municipal council of his commune, Cheseaux-sur-Lausanne.
In the case of an implanted medical device (IMD), it is important to design an implant which can be remotely powered by the external base station through (e.g.) near-field inductive coupling in order to avoid surgery to replace the battery. Moreover, the IMD needs to exchange key information with the external base station through radio frequency communication. First, the base station needs to send energy wirelessly to the IMD. This energy is stored in a load capacitor or is used to recharge a medical grade battery. Then, the sensor which is part of the IMD performs a measurement (e.g. measurement of the internal temperature) which is transformed in a digital signal thanks to an analog to digital converter. This digital signal modulates the carrier of the implanted transmitter to generate the modulated signal which is sent wirelessly to the receiver of the external base station. Therefore, wireless remote powering and wireless data communication will constitute the main objectives of this talk. Different practical examples will be presented (e.g. implanted brain interface, monitoring of a small rodent, etc).
Catherine Dehollain received the Master’s degree in electrical engineering and the Ph.D. degree from EPFL in 1982 and 1995, respectively. From 1982 to 1984, she was a Research Assistant at EPFL. In 1984, she joined the Motorola European Center for Research and Development, Switzerland, where she designed integrated circuits applied to telecommunications. In 1990, she joined EPFL as a Senior Assistant where she performed her PhD thesis on impedance broadband matching. Since 1995, she is responsible at EPFL of the RFIC Group dedicated to radio frequencies activities. From 2006 to 2014, she was a Maître d’Enseignement et de Recherche (MER) at EPFL. Since 2014, she has been Adjunct Professor at EPFL. She is an author or coauthor of 7 scientiﬁc books and of 200 scientiﬁc publications. Her research interests include biomedical remotely powered sensors, RFIDs, RF circuits, low power analog circuits, and electrical filters.