Invited talks

We are updating this section.

Confirmed speakers in alphabetical order are:





Prof. Hanna BoguckaPoznan University of Technology (PUT), Poznan, Poland 

Title: Energy-Efficient Small Cells Deployment in TV White Spaces

Abstract: The transition from analogue to digital television (DTV) has resulted in new kinds of unused spectrum. Owing to the need to manage interference between transmitters of the DTV multi-frequency systems, the typical network plan creates pockets of unused spectrum which is interleaved in frequency and space; a common term for this spectrum is TV White Spaces (TVWS). Small cells (pico- and femtocells) in cellular networks are envisioned as a method of traffic offloading in densely populated areas. They are supposed to cover small areas up to 200 m (picocells) or in the order of 10 m (femtocells), and therefore transmission power requirements in small cells are also moderate or low. Small cells can share frequency channels with macro cells, however interference between small cells and a macrocell is an issue. Moreover, uncoordinated spectrum sharing between small cells may cause interference between them, what further degrades the quality of service and the benefit of small cells deployment. TVWS provide an opportunity for such a deployment due to the fact that small cells meant for densely populated areas require low power. This keynote will address the problem of using TVWS for extending the capacity of future heterogeneous wireless networks, such as LTE and LTE-A networks in small cell scenarios taking their energy-efficiency into account.

Short biographyProf. Hanna Bogucka received the Ph.D. degree and the Doctor Habilitus degree in Telecommunications from Poznan University of Technology (PUT), Poznan, Poland in 1995 and 2006 respectively. Currently, she holds a position of a professor and a Deputy‐Dean for Research at the Faculty of Electronics and Telecommunications at PUT. Prof. Hanna Bogucka is involved in research in the area of wireless communications: cognitive radio and energy-efficient wireless systems and networks. She has been involved in the projects funded by the Polish National Science Centre, Ministry of Science and Higher Education, and in consulting for the Polish Telecomunication operator. She has been involved in multiple European 5th – 7th Framework Programme projects dealing with novel wireless flexible transmission techniques.

Prof. Bogucka is the author of over 130 papers, published in major IEEE journals and magazines, European journals and in the proceedings of international conferences. She is also the author of one book and a number of book chapters focusing on green communications and cognitive radio.

She is the member of the Editorial Board of the journal "Advances in Electronics and Telecommunications," Publishing House of Poznan University of Technology and of the "Recent Advances in Communications and Networking Technology," Bentham Science Publishers. She is the member of the IEEE Kiyo Tomiyasu Award Committee and has been appointed IEEE Communications Society Director of the EAME Region (Europe, Africa, Middle East) for 2014-2015 term.





Prof. Luiz DaSilvaTrinity College, Ireland and Virginia Tech, USA

Title: Energy Efficiency through Resource Sharing in the Wireless Access 

Abstract: Resource sharing will play a key role in the evolution of wireless networks, as operators strive to meet ever increasing demands. It is clear some energy savings are achievable though infrastructure sharing among operators to take advantage of areas or time periods of low correlation in subscriber demand. We have recently analysed the potential for improved efficiencies from such sharing, using real demand data for cellular services from two mobile operators in Ireland. In this talk, we focus on the reassignment of user equipment across adjacent small cells to concurrently enable spatial multiplexing gains through multi-user MIMO and reductions in energy consumption through switching small cells to a sleep state. Our results show that, for both indoor and outdoor LTE scenarios, our proposed reassignments can achieve significant reductions in the required number of active small cell eNBs while simultaneously resulting in increased spectral efficiency.

Short biography: Prof. Luiz DaSilva holds the Stokes Professorship in Telecommunications in the department of Electronic and Electrical Engineering at Trinity College Dublin, where he is a co-Principal Investigator of CTVR, The Telecommunications Research Centre in Ireland. He is also a Professor in the Bradley Department of Electrical and Computer Engineering at Virginia Tech, where he has been a faculty member since 1998. Prof. DaSilva's research focuses on distributed and adaptive resource management in wireless networks, and in particular cognitive radio networks and the application of game theory to wireless networks. He is currently a principal investigator on research projects funded by the National Science Foundation, the Science Foundation Ireland, and the European Commission under Framework Programme 7. Recent research sponsors also include DARPA, the Office of Naval Research, Intel, and Microsoft Research. Prof. DaSilva has authored more than 150 peer-reviewed journal and conference papers and two books on wireless communications. He is a Senior Member of IEEE and in 2006 was named a College of Engineering Faculty Fellow at Virginia Tech.





Prof. Mérouane Debbah, Huawei, France

TitleOptimal Design of Energy-Efficient Multi-User MIMO Systems: Is Massive MIMO the Answer?

AbstractAssume that a multi-user multiple-input multiple-output (MIMO) system is designed from scratch to uniformly cover a given area with maximal energy efficiency (EE). What are the optimal number of antennas, active users, and transmit power? The aim of this paper is to answer this fundamental question. We consider jointly the uplink and downlink with different processing schemes at the base station and propose a new realistic power consumption model that reveals how the above parameters affect the EE. Closed-form expressions for the EE-optimal value of each parameter, when the other two are fixed, are provided for zero-forcing (ZF) processing in single-cell scenarios. These expressions prove how the parameters interact. For example, in sharp contrast to common belief, the transmit power is found to increase (not to decrease) with the number of antennas. This implies that energy-efficient systems can operate in high signal-to-noise-ratio regimes in which interference-suppressing signal processing is mandatory. Numerical and analytical results show that the maximal EE is achieved by a massive MIMO setup wherein hundreds of antennas are deployed to serve a relatively large number of users using ZF processing. The numerical results show the same behavior under imperfect channel state information and in symmetric multi-cell scenarios.

Short biography: Mérouane Debbah entered the Ecole Normale Supérieure de Cachan (France) in 1996 where he received his M.Sc and Ph.D. degrees respectively. He worked for Motorola Labs (Saclay, France) from 1999-2002 and the Vienna Research Center for Telecommunications (Vienna, Austria) until 2003.  From 2003 to 2007, he joined the Mobile Communications department of the Institut Eurecom (Sophia Antipolis, France) as an Assistant Professor. Since 2007, he is a Full Professor at Supelec (Gif-sur-Yvette, France). From 2007 to 2014, he was director of the Alcatel-Lucent Chair on Flexible Radio. Since 2014, he is Vice-President of the Huawei France R&D center and director of the Mathematical and Algorithmic Sciences Lab. His research interests are in information theory, signal processing and wireless communications. He is a senior area editor for IEEE Transactions on Signal Processing and an Associate Editor in Chief of the journal Random Matrix: Theory and Applications.  Mérouane Debbah is a recipient of the ERC grant MORE (Advanced Mathematical Tools for Complex Network Engineering). He is a WWRF fellow and a member of the academic senate of Paris-Saclay. He is the recipient of the Mario Boella award in 2005, the 2007 IEEE GLOBECOM best paper award, the Wi-Opt 2009 best paper award, the 2010 Newcom++ best paper award, the WUN CogCom Best Paper 2012 and 2013 Award, the 2014 WCNC best paper award as well as the Valuetools 2007, Valuetools 2008, CrownCom2009 , Valuetools 2012 and SAM 2014 best student paper awards.  In 2011, he received the IEEE Glavieux Prize Award and in 2012, the Qualcomm Innovation Prize Award.





Prof. Eryk DutkiewiczMacquarie University, Sydney, Australia

TitleResearch Challenges of Dynamic Spectrum Sharing for 5G Networks: How to Achieve Seamless Evolution?

Abstract: The high demand for wireless Internet is putting extreme pressure on better utilisation of the available radio spectrum. The expected spectrum “famine” requires highly efficient radio resource management schemes with low complexity and high responsiveness to the changing network conditions. Dynamic spectrum sharing (DSS) is regarded as an essential approach to regaining access to otherwise unused spectrum and it is considered an essential component in the development of 5G networks. DSS can be conducted at different time scales. Due to a potentially high cost of setting up the necessary infrastructure, initially the use of DSS may only be attractive to network operators over long time scales of months or years. This approach is currently taken in standards development activities as exemplified by the emergence of the Leased Spectrum Access concept. As the time scale of the operation of DSS decreases, the possibility for utilising more available spectrum holes increases. However, the shorter time scale brings with it challenges. Efficient decisions regarding the use of DSS require accurate knowledge of the spatial and temporal spectrum use in a geographical area of interest. This knowledge can be represented in Radio Environmental Maps (REMs) which need to be generated efficiently and accurately. As the deployment of DSS evolves from longer to shorter time scales of operation, an important design consideration is how to achieve this evolution in a seamless manner. In this presentation we give an overview of the DSS concept and its emergence in standards activities. We also present various approaches of REM generation for use with DSS and the architectural choices for achieving the seamless evolution of DSS.

Short biographyProf. Eryk Dutkiewicz has over 25 years of industrial and academic research experience. He obtained his Bachelor of Electrical and Electronic Engineering from the University of Adelaide, Australia in 1988, his Master of Science in Applied Mathematics from the University of Adelaide, Australia in 1992 and his PhD (Telecommunications) from the University of Wollongong, Australia in 1996. From 1999 to 2004 he worked at Motorola Laboratories in Sydney where he managed a wireless research laboratory. During that time he was also deeply involved in the development of the popular WiFi technology. Since returning to academia in 2004 he has worked closely with industry partners including Motorola, Freescale, and Intel on projects involving wireless sensor networks, 4G and 5G mobile communications networks and medical wireless body area networks. He is currently the Director of a multi-disciplinary research centre: the Macquarie University WiMed Research Centre ( that focuses on development of medical implant technologies. He is also the Director of the Wireless Communications and Networking Laboratory researching 5G technologies.

Prof. Dutkiewicz has held visiting professorial appointments at the Chinese Academy of Sciences, Shanghai Jiao Tong University, City University of Hong Kong and Coventry University in the UK. He is an author of over 170 research papers and several book chapters. His professional activities in recent years included participation on various International Steering Committees with the latest being IEEE ICC 2014 and IEEE WPMC 2014. He is the General Chair of BodyNets 2015 and IEEE VTC 2017-Spring in Sydney. 





Prof. Damien Ernst, University of Liège, Belgium

Title: The Global Grid

Abstract: In this talk, Damien Ernst will discuss the future of our electricity networks. He will explain through simple but rigorous arguments that in the near future, the race for renewable energy will cause the interconnection of electricity grids of the planet. They will form one single electrical grid - called The Global Grid - linking together the vast majority of consumers and electricity producers in the world. With The Global Grid, the electrical commodity will be exchanged internationally as it is the case now with oil or coal. Professor Ernst will also address the dangers associated with the globalization of the electric commodity, and the many challenges that Belgium and its electric industry will face in this global context. 

Short biography: Prof. Damien Ernst received the M.S. and Ph.D. degrees in engineering from the University of Liège, Liège, Belgium, in 1998 and 2003, respectively. He is currently an Associate Professor at the University of Liège, where he is affiliated with the Systems and Modeling Research Unit. He is also the holder of the EDF-Luminus Chair on Smart Grids. His research interests include power system control, Smart Grids to use trendy words, and reinforcement learning. He is the author of more than 150 research papers and two books. He has also received numerous awards for his work.





Prof. David Grace, University of York, UK

Title: 'Cognitive' 5G Small Cell Systems – How can Intelligence Save Energy?

Abstract5G wireless communication networks promise to support significant increases in data rates and capacity density, and it is likely that these will be achieved through extensive use of small-cells and ultra-small-cells. This will require a revolution in the way such systems are designed, as device and network energy consumption, and cost, will become ever more important constraints. Small cells bring with them new specific challenges of rapid change in the spatial and temporal traffic statistics, making it more difficult to predict behavior. Using work underway in the FP7 ABSOLUTE and other projects, this talk will explore the critical parameters, including energy models, and also show how the application of fully and partially distributed artificial intelligence through cognition can be used to significantly improve the energy efficiency and system performance. It will specifically examine the application of reinforcement learning and transfer learning on spectrum assignment and topology control for both the access and wireless backhaul segments. These will be placed in the context of specific scenarios, such as temporary events in a sports stadium, and small cells used in an urban setting. Finally, it will introduce future directions for research in this area.

Short biography: Prof. David Grace is Head of Communications and Signal Processing Research Group within the Department of Electronics at the University of York. He is also a Co-Director of the York - Zhejiang Lab on Cognitive Radio and Green Communications, and a Guest Professor at Zhejiang University.  He received his PhD from University of York in 1999, with the subject of his thesis being ‘Distributed Dynamic Channel Assignment for the Wireless Environment’. Current research interests include cognitive green radio, particularly applying distributed artificial intelligence to resource and topology management to improve overall energy efficiency; architectures for beyond 4G wireless networks; dynamic spectrum access and interference management. He is a one of the lead investigators on FP7 ABSOLUTE which is dealing with extending LTE-A for emergency/temporary events through application of cognitive techniques, and recently a co-investigator of the FP7 BuNGee project dealing with broadband next generation access. He is an author of over 180 papers, and author/editor of 2 books.  He currently chairs IEEE Technical Committee on Cognitive Networks and the Worldwide Universities Network Cognitive Communications Consortium (WUN CogCom), and is a member of COST IC0902. He is a founding member of the IEEE Committee on Green Communications and Computing.  In 2000, he jointly founded SkyLARC Technologies Ltd, and was one of its directors.





Prof. Aawatif HayarGREENTIC/ENSEM, University Hassan II Casablanca, Morocco

Title: Smart Cities: ICT R&D Challenges and Opportunities

Abstract: “Smart City” is a new concept based on ICT innovation aiming at following a global approach to tackle the new raising problems of the modern big cities. It provides a set of tools and paradigms for optimization of resources and sustainability of eco-friendly socio-economic development. This is achieved through using innovative ICT tools for interconnecting city systems such as transport, health, education, economy, environment and governance. It also aims at improving citizens daily life and facilitating citizen access to city services while giving them the opportunity, through better connectivity and eco-citizenship sensitization and promotion, to be key players in the development of their city.

In emerging countries, Smart city concept implementation is even more relevant and challenging than in developed countries. Indeed, higher rate of population growth is faced with limited resources which generate more societal challenges. Smart cities Low cost models need then to be considered. New way of optimizing and using city resources, in accordance with local existing infrastructure and human capacities, needs to be explored.  ICT innovation is one of the key tools in achieving such new approaches and concepts for designing result oriented smart governance, Low cost ubiquitous scalable infrastructures, IT-enabled energy efficient industry, fair and sustainable society.

Our presentation will highlight the role of IT in implementing and optimizing such new smart cities concepts and provides some insights in terms of research directions.

Short biographyProf. Aawatif HAYAR received the “Agrégation Génie Electrique” from Ecole Normale Supérieure de Cachan in 1992. She received the “Diplôme d'Etudes Approfondies” in Signal processing Image and Communications and the degree of Engineer in Communications Systems and Networks from ENSEEIHT de Toulouse in 1997. She received with honors the Ph.D. degree in Signal Processing and Communications from Institut National Polytechnique de Toulouse in 2001. She was research and teaching associate at EURECOM’s Mobile Communication Department from 2001 to 2010. Aawatif Hayar is currently with GREENTIC R&D Organization (Morocco) as General Secretary and expert in cognitive green ICT field. She has also joined in 2011 the engineering school ENSEM at the University Hassan II Casablanca in Morocco. Aawatif Hayar is also member of Casablanca “Avant-garde” City think-tank. Her research interests includes fields such as cognitive green communications systems, UWB systems, smart grids, smart cities, ICT for eco-friendly smart socio-economic development. Aawatif Hayar was a Guest Editor of Elsevier Phycom Journal Special issue on Cognitive Radio Algorithms and System Design in 2009 and General Co-chair of Crowncom2010 (France) dedicated to cognitive radio systems and IW2GN2011 (Morocco) dedicated to wireless green systems. She was co-organiser of GDR-ISIS Cognitive Radio workshop in France in 2011. Aawatif Hayar was also General co-chair of ICT 2013 Conference (Morocco). She is also expert at the European commission level for cognitive and UWB systems. Aawatif Hayar received with one of her PhD students the "best student paper" award at CogArt2010 and has a patent in cognitive radio field on “Process for sensing vacant bands over the spectrum bandwidth and apparatus for performing the same based on sub space and distributions analysis”.






Mr. Erik LutherSDR Marketing Product Manager at NIC Corporate

Title: Platform Approach to Design of Next Generation Wireless Systems 

Abstract: The growing number of wireless devices and scarcity of available spectrum is spurring unprecedented levels of research to design the next generation of wireless systems. Use of software defined radios (SDR) is emerging as a viable way to rapidly prototype custom protocols, analyze performance in real-world environments, and iterate on designs because it closely mirrors the functionality found in real wireless devices with the added flexibility of broader frequency coverage and re-programmable baseband processing. In this talk we discuss the importance of a platform approach to design next generation wireless systems. This approach allows design teams more efficiently utilize new, more advanced hardware and software while shortening time to results with deployment through reuse along the product development, validation, verification and deployment cycle. We cover several case studies in the design and prototyping of 5G wireless communications systems that include waveform development and prototyping a Massive MIMO testbed with the aim of meeting growing bandwidth requirements while improving coexistence and reducing overall power requirements.

Short biography: Mr. Erik Luther (KF5LTV), SDR Marketing Group Manager, leads the team responsible for marketing National Instruments and Ettus Research Software defined radio products. Since joining NI in 2002, Luther has held positions across applications engineering and product marketing focused on advancing NI design platforms, specifically making prototyping and experimentation more accessible for both research and education. Early in his career, Luther pioneered NI’s efforts to support universities with curriculum and textbooks, launching NI's independent textbook publishing arm NTS Press. His accomplishments include the publication of more than 50 textbooks and lab related materials on topics that include RF/communications, DSP, circuit design, and real-time control which have been utilized by more than 100,000 engineering students around the world. Luther is currently Chair for the IEEE ComSoc Resources for Education and Trainers working group focused on establishing teaching best practices and hands-on education resources.  Luther graduated from the University of Missouri, Columbia in 2003 with a bachelor's degree in Electrical Engineering.





Prof. Michela Meo, Politecnico di Torino, Italy

Title: Toward Sustainable Networking

Abstract: The recent staggering estimates of the huge energy consumption of the ICT has raised the awareness that new approaches for reducing energy consumption are needed in all the sectors of ICT, networking included. In particular, new solutions and design paradigms are needed for mobile access networks, whose large consumption derives from the networks being composed of many devices that consume relatively much. Some of the most promising techniques for reducing energy consumption in wireless access networks is dynamic stand-by of network equipment. This approach exploits the fact that during low-load periods, a fraction of the deployed equipment (such as cellular base stations or WiFi APs in dense wireless LANs) becomes unnecessary and can enter some low-consumption mode. In this talk, some of these approaches will be presented and their effectiveness will be discussed. Finally, we will motivate the need to shift the attention from energy efficiency to sustainability. Indeed, reducing energy consumption might not be enough to guarantee network sustainability, given the dramatic increase of the demand for services that is expected for the next 10 years.  We will present some scenarios in which the use of solar energy to power base stations of cellular networks is becoming increasingly interesting.

Short biographyProf. Michela Meo received the Laurea degree in electronic engineering in 1993, and the Ph.D. degree in electronic and telecommunications engineering in 1997, both from the Politecnico di Torino, Italy. Since November 2006, she is associate professor at the Politecnico di Torino.

She coauthored almost 200 papers, about 60 of which are in international journals. She edited several special issues of international journals, including IEEE Internet Computing, ACM Monet, Performance Evaluation, and Computer Networks. She was program co-chair of two editions of ACM MSWiM, general chair of another edition of ACM MSWiM and of IEEE Online GreenComm, program co-chair of the IEEE QoS-IP, IEEE MoVeNet 2007, and IEEE ISCC 2009, IEEE Online GreenComm 2012, IEEE Infocom Miniconference 2013, and she will chair the TPC of ITC 2015. She is associate editor of IEEE/ACM Transactions on Networking, and she chairs the Steering Committee of IEEE Online GreenComm.

Her research interests include the field of green networking, performance evaluation and modeling and traffic classification and characterization.





Dr. Alain AM MouradWireless Systems Specialist, InterDigital Europe, UK

Title: Contextualization and the Energy-Efficiency Challenge in 5G Wireless Networks

Abstract: The use of context information throughout various parts of future 5G systems is necessary to flexibly optimize against (often dynamically changing) KPIs such as energy efficiency, latency, spectral efficiency, and many others. However, making a networked infrastructure context-aware at a general level, providing context-aware operations at scale and at different layers of the overall system presents a number of significant challenges. One of these is making the contextual information available to the 5G system. While this problem is a focus of several on-going research activities, in this talk we assume that it has been solved, and that the necessary policy / configuration / optimization systems which process such contextual information are also available. We then explore how the 5G system can use smart contextualization to actually realize significant improvements in the energy efficiency 5G KPI. Specifically, we choose a selected set of 5G enabling radio technologies, such as full duplexing, intelligent RFFE, distributed-MIMO, and millimeter wave, and present context-dependent mechanisms for configuring and operating these technologies in order to maximize their energy efficiency yields.

Short biographyAlain AM Mourad holds a PhD degree (hons) in wireless communications from ENST Bretagne (FR) and an Engineering degree (hons) from the University of Rennes 1 (FR). Since Mar’14, he is with InterDigital Europe (UK) focusing on strategic engineering pertaining to the technology and business development for InterDigital future (Next-G) wireless systems solutions. Prior to InterDigital, he was with Samsung Electronics R&D (UK, Nov’07 – Feb’14) and Mitsubishi Electric R&D Centre Europe (FR, Mar’02 – Oct’07), where he was actively involved in pre-standardization research (including EU FP7/6/5 framework programmes) and standardization of recent wireless communication and broadcasting systems, namely 3GPP LTE, IEEE 802.16, DVB-T2/NGH/GSE, and ATSC 3.0. Dr Mourad has held various leadership and management roles in the industry (InterDigital Europe, Samsung Electronics, DVB Forum, EU FP7). He is author of over 50 patent applications (including 20++ granted patents) and over 30 peer-reviewed scientific publications, and was the recipient of Samsung Electronics R&D UK Inventor of the Year Award for two consecutive years, in 2012 and 2013.





Dr. Christine MorinINRIA Rennes, France

Title: Snooze: A Scalable Energy-Efficient IaaS Cloud Management System

Abstract: With increasing numbers of energy hungry data centers, energy conservation has now become a major design constraint for current and future Infrastructure-as-a-Service (IaaS) cloud providers. In order to efficiently manage such large-scale environments, three important properties have to be fulfilled by the management frameworks: (1) scalability, (2) fault-tolerance, and (3) energy-awareness. We will present Snooze, an open source scalable autonomic and energy-efficient virtual machine management system for IaaS clouds. One way to conserve energy is to transition idle servers into a lower power-state. Snooze implements virtual machine (VM) placement and dynamic VM scheduling algorithms to facilitate the creation of idle times. We will show experimental results demonstrating that the energy saving mechanisms allow Snooze to achieve substantial energy savings with only limited impact on application performance.

Short biographyDr. Christine Morin received her PhD degree in Computer Science from the University of Rennes I in 1990. She holds a senior research position at Inria and leads the Myriads project-team on the design and implementation of autonomous distributed systems. In 2006, she co-founded the Kerlabs spin-off exploiting the Kerrighed single system image technology for clusters resulting from her research activities. She coordinated the XtreemOS project on Grid computing and the Contrail project on Cloud computing funded by the European Commission. She is an affiliate at the Lawrence Berkeley National Laboratory in the Advanced Computing for Science group that hosted her for a 2-year sabbatical visit in 2011-2013. Her main research interests are in distributed systems, cloud, autonomic and green computing. She co-authored more than 100 papers published in international journals and conferences.





Prof. Loutfi Nuaymi, Telecom Bretagne, France

Title: CRAN, Cloud RAN, context and research issues

Abstract: The wireless trafic data rate is expected to continue to increase fastly in the following years. On the other hand, the density of base stations is very high in urban areas. It is also very difficult to add new BS sites in these areas. Since the operators revenues are not expected to increase equivalently, there is need for efficient but also cost-reducing solutions for wireless systems. In order to address these issues, the often-cited cloud paradigm is now proposed to be extended to RAN with the CRAN, Cloud RAN, concept. In this talk, we present the context and research issues of CRAN before a discussion and perspectives evaluation. The radio resource challenges and already-proposed solutions, in association with other innovative concept such as CoMP, Coordinated MultiPoint, Transmission and Reception in LTE are described. This is put in the perspective of 5G.

Short biography: Prof. Loutfi Nuaymi was born in Beirut in 1970. He is Associate Professor at Telecom Bretagne (previous name : ENST Bretagne), Rennes, France. He got his PhD in Telecommunication from the Ecole Nationale Supérieure des Télécommunications (ENST), now Telecom Paris Tech, Paris, France in 2001. His fields of interest are radio resource management and energy-efficiency in wireless networks: UMTS, WiFi, WiMAX and LTE. He is the author of ‘WiMAX’, published by Wiley (January 2007) and many journal and conference papers.





Prof. Sofie Pollin, KU Leuven, Belgium

Title: Energy-proportionality for scalable 5G communication

Abstract: The flexibility and ubiquity of wireless communication solutions has played an important role in the explosive growth in mobile radios used in laptops, smartphones and tablets. With the evolution towards wearable and cyber physical systems, mobile systems promise unprecedented opportunities for monitoring and controlling personal health, cities and the environment. Today, we notice that this promise is only partially fulfilled, and important spectrum, battery and flexibility bottlenecks hamper the full potential of the next generation wirelessly connected systems. 

As 5G research is starting, various innovative ideas are being proposed to promise the much desired power and spectrum-efficient systems. In this talk, an overview will be given of possible 5G directions, and how smart energy efficiency can be enabled in each of them.

Short biography: Prof. Sofie Pollin obtained her PhD degree at KU Leuven with honors in 2006. From 2006-2008 she continued her research on wireless communication, energy-efficient networks, cross-layer design, coexistence and cognitive radio at UC Berkeley. In November 2008 she returned to imec to become a principal scientist in the green radio team. Since 2012, she is tenure track assistant professor at the electrical engineering department at KU Leuven. Her research centers around Networked Systems that require networks that are ever more dense, heterogeneous, battery powered and spectrum constrained. Prof. Pollin is BAEF and Marie Curie fellow, and IEEE senior member. 





Dr. Sumei Sun, I2R, Singapore

Title: An Energy-Efficient Large-Scale Distributed Antenna System for Multiple Users

Abstract: In this talk, a large-scale distributed antenna system (L-DAS) with very large number of distributed antennas is introduced. A few major issues of the L-DAS design, such as energy consumption, computational complexity, and large feedback (signaling) overhead, are discussed, and the potential capability of L-DAS in energy efficiency (EE) is illuminated. Establishing a general power consumption model of an L-DAS, we formulate the EE maximization problem and tackle two design issues, namely, the computational complexity and the large amount of feedback (signaling) information. We propose a channel-gain-based antenna selection (AS) method and an interference-based user clustering (UC) method. The original problem is then split into multiple subproblems by a cluster, and each cluster’s precoding and power control are managed in parallel for high EE. Simulation results reveal that i) using all antennas for zero-forcing multiuser multiple-input multiple-output (MU-MIMO) is energy inefficient if there is non-negligible overhead power consumption on MU-MIMO processing, and ii) increasing the number of antennas does not necessarily result in a high EE. Furthermore, the results validate and underpin the EE merit of the proposed L-DAS complied with the AS, UC, precoding, and power control by comparing with non-clustering L-DAS and co-located antenna systems.

Short biography: Dr. Sumei SUN has been with the Institute for Infocomm Research since 1995. She was the Communication Systems and Signal Processing (CSSP) Technology Group Leader during 2000 to 2002, Modem Technology Laboratory Head during 2003 to 2006, and Head of Modulation & Coding Department since 2007. Her recent research interests include 5G transmission technologies, energy– and spectrum–efficient wireless communication systems, renewable energy management and cooperation in wireless systems and networks, heterogeneous networks, and wireless transceiver design.

Dr. Sun has authored and co–authored more than one hundred technical papers in prestigious IEEE journals and conferences. She is co–recipient of IEEE PIMRC'2005 Best Paper Award. She’s inventor and co-inventor of over twenty patents and patent applications, many of which have been licensed to industry with multi–million dollar licensing returns. For her achievement in technology invention and industry contribution, she and her team was honored with the Scientist-Entrepreneur Award from the Agency for Science, Technology, and Research (A*STAR) in 2008.

Dr. Sun has served in many IEEE conferences with different roles. In particular, she served as Co-Chair, Signal Processing for Communications Symposium, ICC 2015, Track Co-Chair of Mobile Networks, Applications, Services, IEEE Vehicular Technology Conference (VTC) 2014 Spring, Track Co-Chair of Transmission Technologies, IEEE VTC 2012 Spring, TPC Co-Chair of 14th (2014) and TPC Chair of 12th (2010) IEEE International Conference on Communications, General Co-Chair of 7th (2010) and 8th (2011) IEEE Vehicular Technology Society Asia Pacific Wireless Communications Symposium (APWCS), and Track Chair of Signal Processing for Communications, Asia-Pacific Signal and Information Processing Association Annual Summit and Conference 2010 (APSIPA ASC 2010). She’s been also actively contributing to IEEE publications and is serving now as an Editor of IEEE Transactions on Vehicular Technology, and Editor of IEEE Wireless Communication Letters. She received the “Top Associate Editor” recognition from IEEE Transactions on Vehicular Technology in 2012 and 2013, and “Top15 Outstanding Editors” recognition in2014. She has been selected as a Distinguished Lecturer in the IEEE Vehicular Technology Society’s Distinguished Lecture Program (DLP) 2014-2016.

She is also chairing the WiFi Data Offloading Task Force of Singapore’s Telecommunication Standard Advisory Committee, Infocomm Development Authority of Singapore, to pave the smooth path for a nation-wide heterogeneous network. In 2014, she was awarded “Distinguished Visiting Fellow” by the Royal Academy of Engineering, United Kingdom. 






Dr. Ahmed Zeddam, ITU-T SG5 Chairman, Orange, France

TitleOverview of the ITU-T SG5 activities

Abstract: This presentation looks into the work of the ITU-T Study Group 5 “Environment and climate change “as lead Study Group for electromagnetic environment and climate change. It includes a view at the current mandate of SG 5 and its working Parties. This presentation will focus on the SG5’s major achievements on environmental impact assessment and energy efficiency issues and will show efforts in improving its role as enabler for sustainable change.   

Short biography: Dr. Ahmed Zeddam received Doctor of Research degree in electronics and the Ph.D. degree in electromagnetic both from the University of Lille, France in 1980 and 1988, respectively. From 1979 to 1982, he was an assistant Professor of electronics at Lille I University. Since 1982, he has been employed at Research and Development Division of France Telecom in Lannion where he was until 2009 head of a Research and Development Unit dealing with Electromagnetic Compatibility (EMC). He conducted research on Lightning Protection and EMC for broadband systems of communications. He is involved in several Technical Committees of international standardisation bodies dealing with Electromagnetic Compatibility (ITU-T, IEC, and CENELEC).

Dr. Zeddam is the author and co-author of about 100 scientific papers, published in reviewed journals and international conferences. He participated to the production of books related to EMC, including a reference book published in 2007. Since 2008 he is Senior Standardisation Manager within France Telecom Orange and he currently Chairman of Study Group 5 of ITU-T “Environment and Climatic Change”. He is also involved in Commission E "Electromagnetic Noise and Interference" of International Union of Radio Science (URSI). Dr. Zeddam is member of many scientific committees of national and international conferences where he held chairing positions and in particular, he was the General Co-chair of IEEE ISPLC 2011.





Prof. Honggang Zhang, International Chair Professor, CominLabs Excellence Center, Université Européenne de Bretagne (UEB) & Supélec, France and Zhejiang University, China

Title: Cognitive Green Communications for Energy Efficiency Improvement

Abstract: Decreasing the energy consumption of future wireless communication networks (e.g. 5G) and improving their energy efficiency is demanding ever-growing attentions around the world. Making ICT (Information and Communications Technology) systems and applications “greener” in terms of energy consumption and electromagnetic radiation will not only help telecommunication companies to attain their sustainable profitability, but also have a profound positive impact on the global environment and human society. Accordingly, this talk introduces the basic concept and features of green communications approaches and the relevant fundamental solutions to increase energy efficiency in the scenario of cellular networks. Specifically, the key role of cognitive green radio has been strengthened for improving energy efficiency, within which several representative learning algorithms, decision making techniques and design tools have been thoroughly discussed with power consumption constraints.

Short biography: Prof. Honggang Zhang is an International Chair Professor, CominLabs Excellence Center, Université Européenne de Bretagne (UEB) & Supélec, France, a Full Professor of Department of Information Science and Electronic Engineering as well as the Co-Director of York-Zhejiang Lab for Cognitive Radio and Green Communications at the Zhejiang University, China. He is an Honorary Visiting Professor of the University of York, UK. He received the Ph.D. degree in Electrical Engineering from Kagoshima University, Japan, in March 1999. From October 1999 to March 2002, he was with the Telecommunications Advancement Organization (TAO) of Japan, as a TAO Research Fellow. From April 2002 to November 2002, he joined the TOYOTA IT Centre. From December 2002 to August 2004, he has been with the UWB Research Consortium, Communications Research Laboratory (CRL) and National Institute of Information and Communications Technology (NICT) of Japan. He was the principle contributor for proposing DS-UWB in IEEE 802.15 WPAN standardization task group. From September 2004 to February 2008, he has been with CREATE-NET (Italy), where he leaded its wireless team in exploring Cognitive Radio and UWB technologies while participated the European FP6/FP7 projects (EUWB, PULSERS2).

Dr. Honggang Zhang has served as the Chair of the Technical Committee on Cognitive Networks (TCCN) of the IEEE Communications Society (ComSoc) during 2011-2012. He is the Co-Chair of IEEE Globecom 2008 Symposium and IEEE ICC 2013 Symposium. He was the founding TPC Co-Chair of CrownCom 2006 and the Steering Committee Member of CrownCom 2006-2009. In the area of green communications and networks, Dr. Honggang Zhang was the Lead Guest Editor of the IEEE Communications Magazine feature topic issues on “Green Communications”. He is the General Co-Chair of IEEE GreenCom 2010 (2010 IEEE International Conference on Green Computing and Communications) and the TPC Co-Chair of IEEE OnlineGreenComm 2014 (The 2014 IEEE Online Conference on Green Communications). He is the Series Editor of IEEE Communications Magazine (Green Communications and Computing Networks Series). He is the co-editor/co-author of two books with the titles of “Cognitive Communications - Distributed Artificial Intelligence (DAI), Regulatory Policy & Economics, Implementation” (Wiley Press) and “Green Communications: Theoretical Fundamentals, Algorithms and Applications” (CRC Press), respectively.



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