08 Jun

IEEE seminar by Dr. Dinh-Thuy Phan Huy

On behalf of the IEEE joint VT/COM/IT Sweden Chapter Board, we are delighted to share with you the information about an IEEE Seminar by Dr. Dinh-Thuy Phan Huy from Orange Labs, France.

Speaker: Dr. Dinh-Thuy PHAN HUY, Orange Labs, France.

Title: Energy-Free Communication

Time: Friday, June 12, 2020, 15:00-16:00

Please contact the Local host (Tommy Svensson at tommy.svensson@chalmers.se) to obtain the Zoom link to connect.

Abstract: First, imagine a tag with the size and the cost of a stamp that broadcasts its message (a simple identity, for instance) without any battery and without propagating any new Radio Frequency (RF) wave: an “Energy-Free Communication” (EFC) tag sending messages thanks to 100%-recycled energy. Then, consider a device (a smartphone, for instance) that detects surrounding tags. Likewise, think of a network that detects tags surrounding devices. Finally, imagine the services that could arise in such environment. Is this just a dream? No! Today (2019), several research labs (including Orange Labs) in the world are designing and prototyping technology enablers for these tags. In this talk, we evaluate the potential opportunities and challenges for the beyond 5G wireless networks to make use of such technical breakthrough. (1) We first explain the so-called “ambient backscattering” principle; a key foundation for EFC. In short, a tag sends a binary message by being transparent to RF waves (when sending “0” bit) or by reflecting RF waves (when sending “1” bit). It is powered by ambient sources of energy (solar, motion, RF, etc.). An RF reader receives the message by detecting changes in the level of received RF power. (2) We then review current global research that has been published on the topic so far. (3) We also present prototypes developed by the SpatialModulation project led by Orange. (4) We then identify potential applications based on such EFC-aware networks and tags, as well as business development perspectives that are likely to give birth to the massive deployment of more sustainable Internet-of-Thing (IoT) services. (5) We finally list the challenges that are raised by this new technology, and that should be investigated in the coming years.

Bio: Dr. Dinh-Thuy PHAN HUY received the degree in engineering from Supelec, in 2001, and the Ph.D. degree in electronics and telecommunications from the National Institute of Applied Sciences of Rennes, France, in 2015. In 2001, she joined France Telecom R&D (now Orange Labs Networks), Châtillon, France. She led the national French collaborative research projects TRIMARAN (2011-2014) and SpatialModulation (2016-2019).
She participated to the following 5G PPP projects: METIS, Fantastic 5G, mmMAGIC and 5GCAR. She holds more than 40 patents and has published more than 20 papers.
She is the recipient of several awards in France: “Prix Impact Economique des Rencontres du Numérique 2016” from the French National Research Agency, “Grand Prix de l’Electronique du General Ferrié 2018” from the French Society of Electricity, Electronics and Information and Communication Technologies and the “Prix Irène Joliot Curie 2018 – category Femme-Recherche-Entreprise” from the French Ministry of Education and Research. Her research interests include wireless communications and beamforming, spatial modulation, predictor antenna, backscattering and intelligent reflecting surfaces.



22 Oct

IEEE Seminar by Professor Armand Makowski

On behalf of the IEEE joint VT/COM/IT Sweden Chapter Board, we are delighted to share with you the information about an IEEE Seminar by Professor Armand Makowski, University of Maryland, College Park, USA.

Time: Tuesday, August 27, 2019, at 16:45
Location: Lecture room Q2, floor 2, Malvinas väg 10 (Q-House),
KTH main campus, 114 28 Stockholm, Sweden. (Link to map)

Title: Degree distribution in large (homogeneous) networks: A little theory and a counterexample


In random graph models, the degree distribution of individual nodes should be contrasted with the (empirical) degree distribution of the graph, i.e., the usual fractions of nodes with given degree. A general framework is introduced to discuss conditions under which these two degree distributions coincide asymptotically when the number of nodes become unboundedly large.

Somewhat surprisingly, we show that this assumption may fail to hold, even in strongly homogeneous random networks. A counterexample can be found in the class of random threshold graphs. An interesting implication of this finding is that random threshold graphs cannot be used as a substitute for the Barabasi-Albert model, a claim made in the literature.

This is joint work with graduate student Siddarth Pal (now at Raytheon BBN).


Armand M. Makowski received the Licence en Sciences Mathematiques from the Universite Libre de Bruxelles in 1975, the M.S. degree in Engineering-Systems Science from U.C.L.A. in 1976 and the Ph.D. degree in Applied Mathematics from the University of Kentucky in 1981. In August 1981, he joined the faculty of the University of Maryland College Park, where he is Professor of Electrical and Computer Engineering. He has held a joint appointment with the Institute for Systems Research since its establishment in 1985. He is currently on leave with the National Science Foundation as Program Director with the Communication and Information Foundation (CISE/CCF/CIF). Armand Makowski was a C.R.B. Fellow of the Belgian-American Educational Foundation (BAEF) for the academic year 1975-76; he is also a 1984 recipient of the NSF Presidential Young Investigator Award. He became an IEEE Fellow in 2006, and received a Lady Davis Trust Fellowship for the academic year 2014-2015. His research interests lie in applying advanced methods from the theory of stochastic processes to the modeling, design and performance evaluation of engineering systems, with particular emphasis on communication systems and networks.

Presentation slides:  IEEE_Sweden_Armand_Makowski