Keynote speakers


Professor Francis C.M. Lau, The Hong Kong Polytechnic University, Hong Kong

Title: Chaotic Communications: The Past, The Present and The Future



A tiny difference can sometimes make significant changes. Such events that are occurring around us all the time are called chaos. Yet, chaos theory started only in the 1960s. In this presentation, we introduce chaotic phenomenon and its characteristics. We also discuss the benefits of using chaotic signals in transmitting messages and the development of different types of chaotic communication systems, one of which became one of the candidates for use in ultra-wideband communication systems. Finally, we provide future research directions in this area.



Francis C.M. Lau received the BEng(Hons) degree in electrical and electronic engineering and the PhD degree from King’s College London, University of London, UK. He is a Professor and Associate Head at the Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong. He is also a senior member of IEEE.

He is the co-author of Chaos-Based Digital Communication Systems (Heidelberg: Springer-Verlag, 2003) and Digital Communications with Chaos: Multiple Access Techniques and Performance Evaluation (Oxford: Elsevier, 2007). He is also a co-holder of three US patents, one pending US patent and one international patent. He has published over 220 papers. His main research interests include chaos-based digital communications, channel coding, cooperative networks, wireless sensor networks, applications of complex-network theories, and wireless communications.

He served as an associate editor for IEEE Transactions on Circuits and Systems II and IEEE Transactions on Circuits and Systems I in 2006–2007. He was also an associate editor of Dynamics of Continuous, Discrete and Impulsive Systems, Series B, a co-guest editor of Circuits, Systems and Signal Processing for the special issue “Applications of Chaos in Communications”, and an associate editor for IEICE Transactions (Special Section on Recent Progress in Nonlinear Theory and Its Applications). He has been a guest associate editor of International Journal and Bifurcation and Chaos since 2010 and an associate editor of IEEE Circuits and Systems Magazine since 2012.



Professor Suzanne LESECQ, CEA-LETI, MINATEC Campus, France

Title: Local (V,T) estimation in integrated circuits using a set of statistical tests



Mobile platforms need ever-increasing computational performances under stringent energy consumption limitation mainly due to the battery lifespan.  An  optimal  operating  point  is  obtained  thanks  to  a  compromise  between  performance  and  power consumption. For distributed architectures (e.g. MultiProcessor System on Chip), the supply voltage  and  the  operating  frequency  of  each  processing  element  are  dynamically  tuned  to reach efficient performance/power consumption trade-offs. To increase the performance of each “actuator”, the physical state (e.g.  the  current  supply  voltage  and  temperature)  of  the integrated  circuit  must  be  monitored  to  locally  adapt  the  control  parameters.  During this keynote, we will present a new estimation method based on statistical tests to estimate the supply  voltage  and  the  temperature  of  a  local  area  in  an  integrated  circuit.  Standard ring  oscillators  buried  in  the  chip provide the raw measurements that are fused to estimate the IC physical state. The  results  presented  here  have  been  developed  in  cooperation  between  the  CEA-LETI (Mrs E. Beigné, Mr. L. Vincent, Dr. S. Lesecq), Grenoble, France and the LIRMM, Montpellier, France (Dr. Ph. Maurines).



Suzanne LESECQ

Suzanne Lesecq defended a PhD in Process Control from the Grenoble Institute of Technology, France, in 1997. She has been appointed as Associate-Professor from 1998 to 2006 and full-time Professor from 2006 to 2009 at the University of Grenoble. There she was head of the Research team SA-IGA at the GIPSA-Lab (Grenoble Image - Signal Processing - Automatic  control Lab), and conducted research dedicated to Fault Detection and Isolation (FDI). She joined CEA-LETI in mid-2009 where she is conducting research on "Automatic control for computing", more precisely, related to control theory applied to MPSoC with application to power management, and motion capture based on data fusion techniques.



Professor Yasutaka Ogawa, Hokkaido University, Japan

Title: Development of Space-Domain Signal Processing for Wireless Communications



Multiple-input multiple-output (MIMO) systems have been extensively studied over the last decade because they provide high data-rate transmission without increasing the frequency bandwidth. They have already been in practical use in wireless local area networks (WLANs) and the long term evolution (LTE) of cellular networks. A MIMO system is one of the applications of space-domain signal processing. On the other hand, an adaptive antenna can suppress interference and realize a diversity effect. An adaptive antenna is a simpler application of space-domain signal processing.

In this talk, we will share the basic concept of the space-domain signal processing with the audience. Then, this presentation will introduce the space division multiple access (SDMA) for the Personal Handy-phone System (PHS) using the adaptive antenna. Furthermore, we will discuss some important features of MIMO systems.



Yasutaka Ogawa received the B.E., M.E. and Ph.D. degrees from Hokkaido University, Sapporo, Japan. Since 1979, he has been with Hokkaido University, where he is currently a professor of the Graduate School of Information Science and Technology. During 1992–1993, he was with ElectroScience Laboratory, the Ohio State University, U.S.A., as a visiting scholar, on leave from Hokkaido University.

His professional expertise encompasses super-resolution estimation techniques, applications of adaptive antennas for mobile communication, multiple-input multiple-output (MIMO) techniques, and measurement techniques. He proposed a basic and important technique for time-domain super-resolution estimation for electromagnetic wave measurement such as antenna gain measurement, scattering/diffraction measurement, and radar imaging. Also, his expertise and commitment to advancing the development of adaptive antennas contributed to the realization of space division multiple accesses (SDMA) in the Personal Handy-phone System (PHS).

He received the Yasujiro Niwa outstanding paper award in 1978, the young researchers’ award of Institute of Electronics, Information and Communication Engineers of Japan (IEICE) in 1982, the best paper award from IEICE in 2007, TELECOM system technology award from the Telecommunications Advancement Foundation of Japan in 2008, and the best magazine paper award in 2011 from IEICE Communications Society. He also received the Hokkaido University Commendation for excellent teaching in 2012.

He is a chairperson of the IEICE Hokkaido Section and the IEEE Sapporo Section. He is a Fellow of the IEICE and IEEE.



Professor Raymond Yeung, Institute of Network Coding, The Chinese University of Hong Kong
Title: Network Coding: An Overview
In recent years, network coding has generated much interest in information theory, coding theory, networking, wireless communications, cryptography, and computer science.  Consider a point-to-point communication network on which a number of information sources are to be mulitcast to certain sets of destination nodes.  The problem is to characterize the maximum possible throughputs.  Contrary to one's intuition, network coding theory reveals that it is in general not optimal to regard the information to be multicast as a "fluid" that can simply be routed or replicated.  Rather, by employing coding at the nodes, bandwidth can in general be saved.  In this talk, we will give an overview of the recent developments in the field and discuss how they can eventually lead to a new information infrastructure.

Raymond W. Yeung received the BS, MEng, and PhD degrees in electrical engineering from Cornell University. He joined AT&T Bell Laboratories in 1988. Since 1991, he has been with Department of Information Engineering at The Chinese University of Hong Kong, where he is currently a chair professor. Since 2010, he has also been serving as Co-Director of the Institute of Network Coding at CUHK.

He received the 2005 IEEE Information Theory Society Paper Award for his work on linear network coding. He also received the Friedrich Wilhelm Bessel Research Award from the Alexander von Humboldt Foundation in 2007 and was a recipient of the Croucher Senior Research Fellowship for 2000/01. He is the author of the books A First Course in Information Theory (Kluwer Academic/Plenum Publishers, 2002) and Information Theory and Network Coding (Springer 2008), which have been adopted by over 60 universities around the world.

Professor Yeung was the General Chair of the First Workshop on Network, Coding, and Applications (NetCod 2005) and a Technical Co-Chair of the 2006 IEEE International Symposium on Information Theory (ISIT 2006). He will be a General Co-Chair of ISIT 2015 to be held in Hong Kong. He is a Fellow of the IEEE and the Hong Kong Institution of Engineers.


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