Abstract:
The unprecedented communication paradigm of machine-to-machine (M2M), facilitating 24/7 ultra-reliable connectivity between a prior unseen number of automated devices, is currently gripping both industrial as well as academic communities. The aim of this tutorial is to provide a detailed academic, technical and industrial insight into latest key aspects of wireless M2M networks, with particular application to smart cities and smart grids.

We will provide an in-depth introduction to the particularities of M2M systems, and then dwell in great depths on the capillary and cellular embodiments of M2M. The focus of capillary M2M will be on IEEE (.15.4e) and IETF (6LoWPAN, ROLL, COAP) standards compliant low-power multihop networking designs; furthermore, for the first time, low power Wifi will be dealt with and positioned in the eco-system of capillary M2M. The focus of cellular M2M will be on latest activities, status and trends in leading M2M standardization bodies with technical focus on ETSI M2M and 3GPP LTE-M; furthermore, we will discuss analytical and simulation works quantifying the performance and impact of M2M in legacy cellular networks.

In addition, an M2M market and business perspective will be also provided in this tutorial. Understanding the potential of Big Data, the market trends and the business models applicable to M2M are fundamental to inspire academia and industry to devise new technologies and put into market viable and flexible M2M solutions.

Along the entire tutorial, challenges and open issues will be identified, thus making the material presented in this tutorial useful for industry and inspiring for researchers and academics alike.

Presenters:
Jesus Alonso-Zarate – PhD and IEEE Senior Member – received his M. Sc. (with Honors) and Ph. D (Cum Laude) degrees in Telecommunication Engineering from the Universitat Politècnica de Catalunya (UPC, Spain) in March 2004 and February 2009, respectively. In 2005, he was awarded by the National Telecommunication Agency (COIT) of Spain with the Best Master Thesis Award in ICT and in 2011 he received the UPC Award for his PhD thesis. He is now with the CTTC (Barcelona, Spain) holding a Senior Research Associate position and is Head of the M2M Department.
 
He has published more than 80 scientific papers in renowned international journals (IEEE Wireless Communications Magazine, IEEE Transactions on Wireless Communications, etc.) and international conferences (IEEE ICC, IEEE GLOBECOM, IEEE PIMRC, IEEE VTC, etc.) over the last years and has also participated in both European-funded and industrial research projects.
 
He is member of the IEEE ComSoc CSIM Technical Committee (Communication Systems Integration and Modeling) and works as reviewer and chair for numerous international conferences. He is part of the Editorial Board of the IET Wireless Sensor Systems Journal and the Wiley Transactions on Emerging Telecommunication Technologies (ETT).
 
In 2011 he was awarded with the Best Paper Award of IEEE International Conference on Communications (ICC) with a technical contribution towards the energy-efficiency of wireless communications. In 2013, he has been awarded with the 2013 EURASIP Best Paper Award on Advances in Signal Processing for a journal paper published in a special issue on wireless cooperative communications.
 
Since 2010, he has been giving a number of talks and tutorials on Machine-to-Machine (M2M) communications all around the globe in prestigious international events and conferences, such as IEEE GLOBECOM, IEEE ICC, IEEE WCNC, or IEEE PIMRC, co-speaking with Dr. Mischa Dohler.
 
Mischa Dohler is Chair Professor in Wireless Communications at King's College London, member of the Board of Directors of Worldsensing, Fellow (2014) and Distinguished Lecturer of the IEEE, and Editor-in-Chief of the Transactions on Emerging Telecommunications Technologies.
 
He is an entrepreneur, angel investor, passionate pianist and fluent in 6 languages. His contributions have featured in the Wall Street Journal and BBC. He has provided technical and thought leadership in wireless communications for 15 years, specifically in the fields of broadband 4G/5G wireless design, machine-to-machine (M2M) systems and Internet-of-Things (IoT) technologies. He enjoys cutting-edge skills across telecommunications systems and has an in-depth understanding of research, innovation and business. He co-founded a globally successful M2M company, Worldsensing, valued at $xxM and employing 35 people (Q4 2013). He cofounded Sensefields, a company dedicated to smart transportation. He is angel investor in high-potential companies. He also acts as technology and entrepreneurship adviser, e.g. for Richard Branson's Carbon War Room, the House of Lords UK, and various start-ups.
 
He has shaped the industry landscape through his broadband standards contributions in ETSI BRAN, impacting the emerging design of 5G systems; and his M2M standards contributions in ETSI M2M, Wavenis and IETF ROLL, impacting the billions of sensors to-be-rolled out over the next decade.
 
He has published more than 160 refereed journal and conference papers, books and patents. His leadership role in academia is corroborated by editorial contributions in form of Editor-in-Chief (EiC), book series editor, journal editorial boards, lead/co-editor of special issues. His scientific publications are recognized by a very high citation h-index of 33, underpinning the cutting-edge nature of his work. His technical vision makes him a popular keynote, panel and tutorial speaker.

Abstract:
Wireless communication networks composed of devices that can harvest energy from nature represent the green future of wireless. Energy harvesting technologies offer the possibility of perpetual operation and no adverse effects on the environment. By developing effective and robust communication techniques to be used under energy harvesting conditions, some of the communication devices and networks can be taken off the power grid, thereby decreasing the overall consumption of energy and the accompanying carbon footprint in the future, by a non-negligible amount.  Energy harvesting brings new dimensions to communication system design in the form of randomness and intermittency of available energy, as well as additional system issues to be concerned about such as energy storage capacity and processing complexity. The goal of this tutorial is to furnish the audience with fundamental design principles of energy harvesting wireless communication networks, building on a foundation of energy efficient communications and these new ingredients that provide design insights specific to this emerging topic. The focus will be on physical and medium access layers incorporating the state of research.

Sennur Ulukus is a Professor of Electrical and Computer Engineering at the University of Maryland at College Park, where she also holds a joint appointment with the Institute for Systems Research (ISR). Prior to joining UMD, she was a Senior Technical Staff Member at AT&T Labs-Research. She received her Ph.D. degree in Electrical and Computer Engineering from Wireless Information Network Laboratory (WINLAB), Rutgers University, and B.S. and M.S. degrees in Electrical and Electronics Engineering from Bilkent University. Her research interests are in wireless communication theory and networking, network information theory for wireless communications, signal processing for wireless communications, information-theoretic physical-layer security, and energy-harvesting communications.

Dr. Ulukus received the 2003 IEEE Marconi Prize Paper Award in Wireless Communications, a 2005 NSF CAREER Award, the 2010-2011 ISR Outstanding Systems Engineering Faculty Award, and the 2012 George Corcoran Education Award. She served as an Associate Editor for IEEE Transactions on Information Theory and IEEE Transactions on Communications. Recently, she served as a Guest Editor for the Journal of Communications and Networks for the special issue on energy harvesting in wireless networks.  She served as TPC co-chair of communication theory and wireless communications symposia, and multiple access track at IEEE ICC, Globecom and WCNC.

Aylin Yener received B.Sc. degrees with honors in electrical and electronics engineering, and in physics, from Bogazici University, Istanbul, Turkey, and the M.S. and Ph.D. degrees in electrical and computer engineering from the Wireless Information Network Laboratory (WINLAB), Rutgers University, NJ.  She was P.C. Rossin Assistant Professor of Electrical Engineering and Computer Science at Lehigh University, PA in 2001. In 2002, she joined the faculty of The Pennsylvania State University, University Park, where she was an Assistant Professor, then Associate Professor, and is currently Professor of Electrical Engineering since 2010. During the academic year 2008-2009, she was a Visiting Associate Professor of Electrical Engineering at Stanford University, CA. Her research interests are in the broad areas of wireless communication theory, information theory, and network science, with recent emphasis on green communications and information security. She is a recipient of the NSF CAREER award in 2003.

Dr. Yener previously served as Technical Program Chair in various symposia, workshop, and tracks of the IEEE Communications Society, as well as on the editorial boards of Transactions on Wireless Communications and Transactions on Communications. She currently serves on the board of governors of the IEEE Information Theory Society as its Treasurer.

Abstract:
A key challenge of future mobile communications research is to strike an attractive compromise between wireless network’s area spectral-efficiency and energy-efficiency. This necessitates a clean-slate approach to wireless system design, embracing the rich body of existing knowledge especially on Multiple-Input-Multiple-Output (MIMO) technologies. This motivates the proposal of an emerging wireless communications concept conceived for single-RF large-scale MIMO communications, which is termed as Spatial Modulation (SM). The concept of SM has established itself as a beneficial transmission paradigm, subsuming numerous members of the MIMO system-family. The research of SM has reached sufficient maturity to motivate its comparison to state-of-the-art MIMO communications, as well as to inspire its application to other emerging wireless systems such as relay-aided, cooperative, small-cell, optical wireless and power-efficient communications. Furthermore, it has received sufficient research attention to be implemented in testbeds, and it holds the promise of stimulating further vigorous inter-disciplinary research in the years to come.

The proposed tutorial is intended to offer a comprehensive state-of-the-art survey on SM-MIMO research, to provide a critical appraisal of its potential advantages, and to promote the discussion of its beneficial application areas and their research challenges leading to the analysis of the technological issues associated with the implementation of SM-MIMO. The tutorial is concluded with the description of the world’s first experimental activities in this vibrant research field.

Marco Di Renzo (S'05-AM'07-M'09) was born in L'Aquila, Italy, in 1978. He received the Laurea (cum laude) and the Ph.D. degrees in Electrical and Information Engineering from the Department of Electrical and Information Engineering, University of L'Aquila, Italy, in April 2003 and in January 2007, respectively. In October 2013, he received the Habilitation à Diriger des Recherches (HDR) degree majoring in Wireless Communications Theory, from the University of Paris-Sud XI, France.

From August 2002 to January 2008, he was with the Center of Excellence for Research DEWS, University of L'Aquila, Italy. From February 2008 to April 2009, he was a Research Associate with the Telecommunications Technological Center of Catalonia (CTTC), Barcelona, Spain. From May 2009 to December 2009, he was an EPSRC Research Fellow with the Institute for Digital Communications (IDCOM), The University of Edinburgh, Edinburgh, United Kingdom (UK). 

Since January 2010, he has been a Tenured Researcher (Chargé de Recherche Titulaire) with the French National Center for Scientific Research (CNRS), as well as a faculty member of the Laboratory of Signals and Systems (L2S), a joint research laboratory of the CNRS, the Ecole Supérieure d'Electricité (SUPELEC), and the University of Paris-Sud XI, Paris, France. His main research interests are in the area of wireless communications theory. He is a Principal Investigator of four European-funded research projects (Marie Curie ITN-GREENET, Marie Curie IAPP-WSN4QoL, Marie Curie ITN-CROSSFIRE and Marie Curie IAPP-SmartNRG).
 

Dr. Di Renzo is the recipient of the special mention for the outstanding five-year (1997-2003) academic career, University of L'Aquila, Italy; the THALES Communications fellowship for doctoral studies (2003-2006), University of L'Aquila, Italy; the Best Spin-Off Company Award (2004), Abruzzo Region, Italy; the Torres Quevedo award for research on ultra wide band systems and cooperative localization for wireless networks (2008-2009), Ministry of Science and Innovation, Spain; the ``Dérogation pour l'Encadrement de Thèse'' (2010), University of Paris-Sud XI, France; the 2012 IEEE CAMAD Best Paper Award from the IEEE Communications Society; the 2012 Exemplary Reviewer Award from the IEEE WIRELESS COMMUNICATIONS LETTERS of the IEEE Communications Society; the 2013 IEEE VTC-Fall Student Best Paper Award from the IEEE Vehicular Technology Society; and the 2013 NoE-NEWCOM# Best Paper Award. He currently serves as an Editor of the IEEE COMMUNICATIONS LETTERS.

Harald Haas (SM’98-AM’00-M’03) holds the Chair of Mobile Communications in the Institute for Digital Communications (IDCOM) at the University of Edinburgh. He is co-founder and part-time CTO of a university spin-out company pureVLC Ltd. His main research interests are in the areas of wireless system design and analysis as well as digital signal processing, with a particular focus on interference coordination in wireless networks, spatial modulation, and optical wireless communication. Professor Haas holds more than 23 patents. He has published more than 55 journal papers including a Science Article and more than 160 peer-reviewed conference papers. Nine of his papers are invited papers. He has co-authored a book entitled “Next Generation Mobile Access Technologies: Implementing TDD” with Cambridge University Press. Since 2007, he has been a Regular High Level Visiting Scientist supported by the Chinese “111 program” at Beijing University of Posts and Telecommunications (BUPT). He was an invited speaker at the TED Global conference 2011. He has been shortlisted for the World Technology Award for communications technology (individual) 2011. He is Associate Editor of IEEE TRANSACTIONS ON COMMUNICATIONS. He has been chair and co-chair of the Optical Wireless Communications (OWC) workshop at Globecom 2011 and 2012 respectively. He recently has been awarded the EPSRC Established Career Fellowship.

Ali Ghrayeb received the Ph.D. degree in electrical engineering from the University of Arizona, Tucson, USA in 2000. He is currently a Professor with the Department of Electrical and Computer Engineering, Texas A&M University at Qatar (on leave from Concordia University, Montreal, Canada.)

He is a co-recipient of the IEEE Globecom 2010 Best Paper Award. He is the coauthor of the book Coding for MIMO Communication Systems (Wiley, 2008). His research interests include wireless and mobile communications, error correcting coding, MIMO systems, wireless cooperative networks, and cognitive radio systems.
 
Dr. Ghrayeb has instructed/co-instructed technical tutorials at several major IEEE conferences. He served as the TPC co-chair of the Communications Theory Symposium of IEEE Globecom 2011. He is serving as the TPC co-chair of the 2016 IEEE WCNC conference.  He serves as an Editor of the IEEE Transactions on Wireless Communications, and the IEEE Transactions on Communications. He served as an Associate Editor of IEEE Transactions on Signal Processing, IEEE Transactions on Vehicular Technology, the Elsevier Physical Communications, and the Wiley Wireless Communications and Mobile Computing Journal.

Abstract:
Focus of the Tutorial is the convergence of the Internet of Things (IoT) and Social Network paradigms towards the deployment of a social network in which things are nodes that establish social links as humans do. This concept is fast gaining ground thanks to the potentials of the social networks within the IoT domain to augment objects’ proficiencies in interacting with the external world.
 

The issues addressed by this tutorial concern the scalable discovery and search of Things and relevant services, privacy and security of personal information handled by Things, heterogeneity of the involved Things, interaction modalities among heterogeneous Internet resources and how these can be used to define new communication paradigms that are applicable to the Internet of trillions of objects. In this context, social networks are expected to provide powerful solutions since these allow for creating a social structure among the members that can be shaped as required to guarantee network navigability so that service discovery can be performed effectively while guaranteeing scalability. The social links in the network also constitute a remarkable basis for the management of the Things trustworthiness, which are then exploited to address issues related to the security and robustness in information and service sharing and to leverage the level of interaction between Things that are friends. Additionally, the social network is proved to be a very influential way for making visible each node in a network of trillions of members.
 

Within the Tutorial, all the different aspects of the cited topic will be thoroughly addressed by finalizing them to the constitution of the background for the definition of new paradigms for data networking in the future Internet; models that should be based on the way the resources interact each other over the time. The final part of the tutorial is left to present more practical concepts related to an experimental Social IoT (SIoT) platform and relevant experiments/demos on its working behaviour. More specifically we show (i) how a mobile device can join a community of devices, and (ii) how devices, members of the SIoT community, discover themselves and establish a relationship within the platform.

Antonio Iera graduated in Computer Engineering at the University of Calabria, Italy, in 1991 and received a Master Diploma in Information Technology from CEFRIEL/Politecnico di Milano, Italy, in 1992 and a Ph.D. degree from the University of Calabria, Italy, in 1996. From 1994 to 1995 he has been with the Mobile Network Division Research Center, Siemens AG – Munich, Germany and since 1997 with the University Mediterranea, Reggio Calabria, where he currently holds the positions of full professor of Telecommunications and Director of the ARTS ( www.arts.unirc.it) - Laboratory for Advanced Research into Telecommunication Systems. He served as TPC member of several IEEE International Conferences and has been co-Guest Editor for different special issues in the IEEE Wireless Communications Magazine. Elevated to the IEEE Senior Member status in 2007. His research interests include: Next generation mobile systems, Advanced Systems for Personal Communications, RFID systems and Internet of Things.
 

Giacomo Morabito received the laurea degree in Electrical Engineering and the PhD in Electrical, Computer and Telecommunications Engineering from the Istituto di Informatica e Telecomunicazioni, University of Catania, Catania (Italy), in 1996 and 2000, respectively. From November 1999 to April 2001, he was with the Broadband and Wireless Networking Laboratory of the Georgia Institute of Technology as a Research Engineer. Since April 2001 he is with the Dipartimento di Ingegneria Informatica e delle Telecomunicazioni of the University of Catania where he is currently Associate Professor.
 

He serves (or has served) in the Editorial Boards of Wireless Networks, IEEE Wireless Communication and Computer Networks. Furthermore, he has been editor or co-guest editor of special issues of IEEE Transactions on Multimedia, IEEE Wireless Communication, Ad Hoc Networks, Computer Networks and MONET. His research interests focus on analysis and solutions for broadband and wireless networks.

Luigi Atzori joined the University of Cagliari (Italy) as Researcher in 2000. His main research topics of interest are in service management in next generation networks, with particular attention to architectural solutions for the Internet of Things, QoS, service-oriented networking, bandwidth management and multimedia networking. He has published more than 100 journal articles and refereed conference papers. Dr. Atzori has been awarded a Fulbright Scholarship (11/2003-05/2004) to work on video streaming at the Department of Electrical and Computer Engineering, University of Arizona. He is senior member of IEEE, co-chair of the IEEE Multimedia Communications Committee (MMTC). He has been the editor for the ACM/Springer Wireless Networks Journal and guest editor for the IEEE Communications Magazine, Monet and Signal Processing: Image Communications journals. He is currently editor of the IEEE IoT Journal.

Abstract:
Narrowing gap between revenues and costs in the operation of cellular system are a major concern for the viability of the business models for the 5G cellular networks and beyond. With the advent of next generations e.g. LTE and 5G, most operators will have to simultaneously manage several different technologies GSM, UMTS, LTE, 5G and Wi-Fi. The main costs are in the form of energy bill and the human resources. To overcome these challenges of reducing the cost, SON has emerged as a paradigm that can reduce OPEX and CAPEX while at the same time yield optimal performance in energy efficiency and other areas. This can be virtually impossible with manual configuration, optimisation, and maintenance due to the huge number of nodes and parameters involved human error factor, and latency and accuracy limitations of manual processes such as surveys and drive tests. Enhancing the user experience by minimising the down time through self-optimisation and self-healing is another major driving force behind research in SON. Given this motivation, in this tutorial we will first introduce SON, by looking at its emergence, prevalent definitions, use cases in cellular systems, desired characteristics, and suitable taxonomies to classify them. We will emphasize on its role in achieving energy efficient operation, i.e., to maximize the number of bits for every joule of energy consumed. We will also analyze what has been achieved in SON, Energy Efficiency and SON for energy efficient operation, to date, including latest standardization activities and industrial progress. This will be followed by engaging technical discussion on selected SON solutions, Energy Efficiency techniques and the framework to assess the energy efficiency of any solution in a self-organized cellular network. The objective is to provide deeper understanding of design process of SON, Energy efficiency of cellular system and its evaluation to reliably quantify its potential gains. Tradeoffs between centralized, distributed and hybrid SON architecture will also be discussed. Tutorial will be concluded with a comprehensive review of open research challenges in the relevant areas in context of 4G and 5G. We will also examine suitability of various techniques, ranging from deterministic tools to evolutionary heuristics, to address these challenges.

Dr Ali Imran is an assistant professor in telecommunications at University of Oklahoma-Tulsa since Jan 2014. From Oct-2011 to Jan-2014, he worked as a research scientist at QMIC, Qatar (www.qmic.com). In that position, he conducted research on a wide range of innovative solutions by drawing mainly on disciplines of telecommunications, software development and sensor networks. Currently he is leading a multinational $1.045 million research project on Self Organizing Wireless Networks, QSON (www.qson.org). Before joining QMIC in Oct-2011, since Oct-2007, he was a research fellow (part time and then full time) in wireless systems at Centre for Communication Systems Research, (CCSR) University of Surrey, UK. In that position Dr. Imran has contributed to a number of pan-European and international research projects while working in close collaboration with key industrial players such as NEC Europe Ltd. (UK), Telefónica (Spain), DOCOMO(Germany), Polska Telefonia Cyfrowa (Poland), Qualcomm (Germany), TTI (Spain), mimoOn (Germany), CTTC (Spain), CEA- LETI (France). There he also taught a number of courses and supervised graduate research students. From March 2002, till Oct-2007 he has worked as a communication lab instructor, BS deployment team leader and RF consultant to a leading telecom company in Pakistan. His research interest include, self-organizing networks, radio resource management and participatory sensing. He has authored or co-authored over 25 peer reviewed journal and conference papers, 2 book chapters and a patent. He is an Associate Fellow of Higher Education Academy (AFHEA), UK. For further details about Dr. Imran’s research and collaboration opportunities please visit www.qson.org

Dr. Muhammad Ali Imran is currently a Reader in Communications at CCSR, University of Surrey (Reader is an academic rank in UK between Full Professor and Associate Professor). In this role, he is leading a number of multimillion international research projects encompassing the areas of energy efficiency, self-organising networks, fundamental performance limits and sensor networks. He has been actively involved in European Commission funded research projects ROCKET, EARTH, BeFemto, iJoin, Lexnet; Mobile VCE funded project on fundamental capacity limits and EPSRC-UK funded project India-UK ATC. For award-winning EARTH project he coordinated CCSR research theme. For IU-ATC project he led the research theme on self-organising networks. He is the principal investigator of EPSRC-UK funded multidisciplinary REDUCE project aiming at using ICT to reduce energy consumption of users. He is also involved in several industry-fundedprojects on the design of spectrum and energy efficient link and system level solutions for wireless communications. Currently he is involved in EU funded research projects iJoin and Lexnet and is working on problems closely related with energy efficient operation of cellular system. He is also working on two independent industry funded research projects on energy efficiency (funded by Sony and Huawei). He is a key researcher on Qatar National Research Fund supported project on self-organising networks - QSON (www.qson.org). His main research interests include the analysis and modelling of the physical layer, optimisation for the energy efficient wireless communication networks and the evaluation of the fundamental capacity limits of wireless networks. He is a member of the CCSR team that has secured a large grant of above £35m for a 5G innovation centre and an outdoor cellular test bed. He has a global collaborative research network spanning both academia and key industrial players in the field of wireless communications. He has supervised 8 post Doc researchers, 17 successful PhD graduates and published over 150 peer-reviewed research papers including more than 20 IEEE Journals and 4 best paper awards. He is a senior member of IEEE and a fellow of Higher Education Academy UK.

The tutorial is important since it provides an understanding of the interrelations between amount of spectrum, network capacity and cost for network deployment and operation. In addition business model aspects are discussed which is of vital importance to understand operator strategies. The agenda of the tutorial of 180 minutes is as follows:

The tutorial will include a basic exercise on network dimensioning and cost structure analysis.

Jens Zander is full Professor and head of the Radio Communication Systems Laboratory, KTH since 1989, he has Ph.D Degree (1985) from Linköping University, Sweden. Jens is co-founder of Wireless@KTH and Center Director since 2003 and he is board member of the National Post and Telecom Agency (PTS).
 

He is co-author of several books in the area of wireless communication, e.g. "Radio Resource Management in Wireless Networks " (Artech House , 2001) and "Principles of Wireless Communications 2nd Edition", (Studentlitteratur 2006).
 

His research interests are in the areas of Network architectures, resource and spectrum management regimes, economic models for future wireless infrastructures
 

Jan Markendahl was appointed Associate Professor in Wireless Infrastructure Deployment and Economics 2012. He received his PhD degree in Techno-economics 2011 and his Lic Eng degree in Telecommunication Theory 1986 both at KTH.
 

Jan has more than 20 years of experience of R&D, business development, management and marketing from Ericsson, Nokia Networks, Telia, Teleplan, Communicator  Guide and Framfab.
 

His research interests include mobile broadband, network deployment, cost structure modelling & analysis, spectrum allocation, business modelling, M2M, Internet of things, mobile payments

Abstract:
Devices powered by energy harvesting (EH) are increasingly being deployed in practice, in place of their traditional, battery-operated counterparts, when factors such as the sheer number of nodes or inaccessibility render battery replacement difficult and cost-prohibitive. Their deployment spans the whole gamut of autonomous networked systems: from machine-to-machine and sensor networks, to smart buildings and grid asset monitoring. It is no surprise that the global EH market is rapidly expanding: it is expected to reach 1.89 billion dollars by 2017 at an estimated annual growth rate of 24%. In parallel, the interest of the communications and networking research community on EH technologies has steadily been growing, as manifested by the ever-increasing number of publications, workshops and projects. In contrast to battery-operated devices, where minimizing energy consumption is crucial to prolong lifetime, in EH-powered devices, the objective is the intelligent management of the harvested energy to ensure long-term, uninterrupted operation.

This tutorial will provide a comprehensive overview of recent developments in the design of energy management policies for EH communication systems. We focus on analytical models that capture the main challenges related to their design: the intermittent nature of harvested energy, the limited capacity and energy leakage in energy storage devices, and the constraints on device size and complexity. We will describe analytical tools from communication theory, Markov decision processes and learning theory which are employed to characterise the optimal policies, and to evaluate the performance of low-complexity, near-optimal policies. The tutorial will examine in detail single-link and multi-link networks and explore the implications of EH on their performance.

Presenters:

Deniz Gunduz received the M.S. and Ph.D. degrees in electrical engineering from Polytechnic Institute of New York University, Brooklyn, NY in 2004 and 2007, respectively. Dr. Gunduz is currently a Lecturer at Imperial College London. Previously he was a Research Associate at CTTC in Barcelona, Spain, a consulting Assistant Professor at Stanford University, CA, and a postdoctoral Research Associate at Princeton University, NJ. His research interests lie in the areas of communication theory, information theory and networking, with special emphasis on joint source-channel coding, cooperative communications and energy efficiency.

Dr. Gunduz is the recipient of a Marie Curie Fellowship in 2010, and the Best Student Paper Award at the 2007 IEEE International Symposium on Information Theory (ISIT). He is an editor of the IEEE Transactions on Communications and served as a guest editor of the EURASIP Journal on Wireless Communications and Networking, Special Issue on Recent Advances in Optimization Techniques in Wireless Communication Networks. He serves as a co-chair of the IEEE Information Theory Society Student Committee. He is a co-chair of the 2013 IEEE GlobalSIP Network Theory Symposium and was the co-chair of the 2012 European School Information of Theory. Currently he is the coordinator of the multi-partner European project E-CROPS on energy harvesting communication networks.

Kostas Stamatiou received his M.Sc. and Ph.D. degrees in Electrical Engineering in 2004 and 2009, respectively, from the University of California San Diego. From 2009 to 2010 he was a post-doctoral scholar at the University of Notre Dame, Indiana, and from 2010 to 2012 he held a research appointment at the University of Padova, Italy. He currently holds a Research Associate position at the Centre Tecnologic de Telecomunicacions de Catalunya (CTTC), Barcelona, Spain. His research interests lie in the areas of communication theory, stochastic geometry and random networks, and stochastic control as applied to the design of EH systems.
 

Dr. Stamatiou received the CalIT2 Fellowship in 2002 and the Marie Curie Fellowship in 2010. He has served as the TPC member for the Communication Theory Symposium of the IEEE International Conference on Communications (ICC), and as reviewer for the IEEE Transactions on Communications, IEEE Transactions on Wireless Communications, IEEE Journal on Selected Areas in Communications and the IEEE Communications Letters.
 

Michele Zorzi received the Laurea and the PhD degrees in Electrical Engineering from the University of Padova, Italy, in 1990 and 1994, respectively. In 1993, he joined the faculty of the Dipartimento di Elettronica e Informazione, Politecnico di Milano, Italy. After spending three years with the Center for Wireless Communications at UCSD, in 1998 he joined the School of Engineering of the University of Ferrara, Italy, where he became a Professor in 2000. Since November 2003, he has been on the faculty at the Information Engineering Department of the University of Padova. His present research interests include performance evaluation in mobile communications systems, random access in mobile radio networks, ad hoc and sensor networks, energy constrained communications protocols, broadband wireless access and underwater acoustic communications and networking.

Dr. Zorzi was the Editor-In-Chief of the IEEE WIRELESS COMMUNICATIONS MAGAZINE from 2003 to 2005 and the Editor-In-Chief of the IEEE TRANSACTIONS ON COMMUNICATIONS from 2008 to 2011, and currently serves on the Editorial Board of the WILEY JOURNAL OF WIRELESS COMMUNICATIONS AND MOBILE COMPUTING. He served as a Member-at-large of the Board of Governors of the IEEE Communications Society from 2009 to 2011.

The limitations of MIMOs relying on co-located array-elements are highlighted and it is shown, how the single-antenna-aided cooperative mobiles may circumvent these limitations by forming MIMOs having distributed elements.  This concept is also referred to a Virtual Antenna Arrays (VAA). Then the corresponding amplify-forward and decode-forward protocols as well as their hybrids are studied. Channel coding has to be specifically designed for the VAAs in order to prevent avalanche-like error-propagation. Hence sophisticated three-stage-concatenated iterative channel coding schemes are proposed and it is argued that in the absence of accurate channel information at the relays the best way forward might be to use multiple-symbol differential detection. Indeed, it is rather unrealistic to expect that an altrustically relaying handset would also accurately estimate the source-relay channel for the sake of high-integrity coherent detection. EXIT-chart-aided designs are used for creating near-capacity solutions and a range of future research directions as well as open problems are stated.

Lajos Hanzo (http://www-mobile.ecs.soton.ac.uk) FREng, FIEEE, FIET, Fellow of EURASIP, DSc has held various research and academic posts in Hungary, Germany and the UK. He has co-authored 20 Wiley-IEEE Press books and has 1300+ research contributions at IEEE Xplore.
 

He presented recent short courses for example at: ICC'2008, Beijing, China; VTC'2008 Spring Singapore; WCNC'2008, Las Vegas; VTC'2008 Fall, Calgary, Canada; Globecom'2008, New Orleans, USA; VTC'2009 Spring, Barcelona, Spain; ICC'2009 Dresden, Germany; VTC'2009 Anchorage, USA; Globecom 2009, Hawaii, USA; NCC'2010, Chennai, India; VTC'2010 Spring, Taipei, Taiwan; ICC'2010, Capte Town, South Africa; VTC'10 Fall Ottawa; ICC 2011 Kyoto, Japan; WCNC 2011 Cancun, Mexico; VTC 2011 Fall San Francisco, USA; Globecom'11 Houston, USA; ICC'12 Ottawa; VTC'12F, Quebec, Canada; Globecom'12 Anaheim, USA; WCNC'13 Shanghai, China; VTC'13S, Dresden; VTC'13F Las Vegas; Globecom'13 Atlanta;

Abstract:
Small cell networks (SCNs) are seen as a promising solution for boosting the capacity of wireless networks, while efficiently offloading data and expanding the coverage in a cost-effective manner.  In this tutorial, we provide a comprehensive overview on SCNs while highlighting the key challenges, associated techniques, and the future landscape.  First, we provide an overview of advanced analytical techniques, such as stochastic geometry, suitable for modeling and analyzing SCNs.  We show how these new spatial and random statistical models provide tractable and powerful tools for computing network performance metrics, such as coverage probability and spectral efficiency.  Second, we delve into the details of advanced interference management techniques tailored for the unique features of SCNs. In particular, we introduce key concepts such as cell range expansion, cell association, and intercell and interference coordination (ICIC) that lie at the heart of next-generation LTE-Advanced systems. Then, we discuss in detail the concept of self-organizing networks (SONs) and its key role in self-configuring and self-optimizing small cell deployment. Here, we focus on novel game-theoretic and reinforcement learning techniques that are seen as a key enabler for deploying self-optimizing and self-configuring heterogeneous and small cell networks. Besides, due to its notable importance, we will shed some light onto the prospects and challenges of the cellular-WiFi integration and present decentralized offloading strategies that harness their mutual benefits. Finally, another topic related to backhaul offloading is caching, which we will explore and its key role in the upcoming 5G networks. We conclude the tutorial by providing an in-depth overview of the current and future challenges facing the large-scale deployment of SCNs, as well as the way forward. This tutorial builds on the success of the tutorials given by the two speakers at IEEE PIMRC 2012 and IEEE GLOBECOM 2012 which attracted significant attention and audience.

Presenters:

Mehdi Bennis received his M.Sc. degree in Electrical Engineering jointly from the Ecole Polytechnique Federale de Lausanne (EPFL), Switzerland and the Eurecom Institute, Sophia Antipolis, France in 2002. From 2002 to 2004, he worked as a research engineer at IMRA-EUROPE investigating adaptive equalization algorithms for mobile digital TV. In 2004, he joined the Centre for Wireless Communications (CWC) at the University of Oulu, Finland as a research scientist. In 2008, he was a visiting researcher at the Alcatel-Lucent chair on flexible radio, SUPELEC. His main research interests are in radio resource management, heterogeneous and small cell networks, game theory, and machine learning. Mehdi has published more than 50 research papers in international conferences, journals, book chapters and patents. He has been the co-chair a number of IEEE HetNets workshops in key conferences including IEEE PIMRC 2012, IEEE ICC 2012, IEEE ICC 2013, IEEE PIMRC 2013, IEEE WCNC 2014 and  IEEE ICC 2014. He has given two tutorials on HetNets at IEEE PIMRC 2012 and IEEE GLOBECOM 2012.

Walid Saad (S'07, M'10) received his B.E. degree in Computer and Communications Engineering from the Lebanese University in 2004, his M.E. in Computer and Communications Engineering from the American University of Beirut (AUB) in 2007, and his Ph.D degree from the University of Oslo in 2010. Currently, he is an Assistant Professor at the Electrical and Computer Engineering Department at the University of Miami. Prior to joining UM, he has held several research positions at institutions such as Princeton University and the University of Illinois at Urbana-Champaign. His research interests include wireless and small cell networks, game theory, network science, cognitive radio, wireless security, and smart grids. He has co-authored one book and over 75 international conference and journal publications in these areas. He was the author/co-author of the papers that received the Best Paper Award at the 7th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks (WiOpt), in June 2009, at the 5th International Conference on Internet Monitoring and Protection (ICIMP) in May 2010, and at IEEE WCNC in 2012. Dr. Saad is a recipient of the NSF CAREER Award in 2013.

Abstract:
There is general consensus that any attempt to meaningfully improve the current performance of wireless communications, must surpass two fundamental challenges; the challenge of inventing communication schemes that properly manage interference, and the challenge of efficiently disseminating and utilizing feedback that may be delayed and imperfect. In the center of this effort, are revolutionary new algorithms that employ multiple antennas; an approach that continues to offer paradigm shifts in wireless communications and penetrate its standards.
 

The tutorial will provide an overview of the latest efforts to design such new schemes that manage to handle multiuser interference, as well as the latest efforts in understanding and meeting the fundamental learning-vs-using tradeoff; i.e., the latest efforts on finding ways to manage interference in the presence of reduced and delayed feedback. In the process, the tutorial will touch upon many new methods used over many different settings relating to multi-user (MU) MIMO in single and multiple cells, and hetnets. We elaborate on the design of spatial(-temporal) communication schemes, the concepts of signal space/scale Interference Alignment (IA), (Delayed) Channel State Information at the Transmitter (D-CSIT), channel training and feedback overhead, ergodic and retrospective IA.

This tutorial will focus on providing an insightful exposition of the latest exciting findings, as well as will place heavy emphasis on exposing new challenges and open questions.

Dirk T.M. Slock received an engineering degree from the University of Gent, Belgium in 1982. In 1984 he was awarded a Fulbright scholarship for Stanford University, USA, where he received the MSEE, MS in Statistics, and PhD in EE in 1986, 1989 and 1989 resp. While at Stanford, he developed new fast recursive least-squares algorithms for adaptive filtering. In 1989-91, he was a member of the research staff at the Philips Research Laboratory Belgium. In 1991, he joined EURECOM where he is now professor. At EURECOM, he teaches statistical signal processing (SSP) and signal processing techniques for wireless communications. His research interests include SSP for mobile communications (antenna arrays for (semi-blind) equalization/interference cancellation and spatial division multiple access (SDMA), space-time processing and coding, channel estimation, diversity analysis, information-theoretic capacity analysis, relaying, cognitive radio, geolocation), and SSP techniques for audio processing. He invented semi-blind channel estimation,  the chip equalizer-correlator receiver used by 3G HSDPA mobile terminals, spatial multiplexing cyclic delay diversity (MIMO-CDD) now part of LTE, and his work led to the Single Antenna Interference Cancellation (SAIC) concept used in GSM terminals. Recent keywords are diversity-multiplexing tradeoff (DMT), MIMO broadcast and interference channel, multi-cell, variational Bayesian techniques, large system analysis, user selection, audio source separation, and mobile positioning.
 

In 2000, he cofounded SigTone, a start-up developing music signal processing products. He has also been active as a consultant on xDSL, DVB-T and 3G systems. He is the (co)author of around 400 technical papers. He received one best journal paper award from IEEE-SP and one from EURASIP in 1992. He is the coauthor of two IEEE Globecom'98, one IEEE SIU'04 and one IEEE SPAWC'05 best student paper award, and a honorary mention (finalist in best student paper contest) at IEEE SSP'05, IWAENC'06 and IEEE Asilomar'06. He was an associate editor for the IEEE-SP Transactions in 1994-96 and the IEEE Signal Processing Letters and EURASIP Signal Processing in 2009-10.

He is an editor for the EURASIP Journal on Advances in Signal Processing (JASP). He has also been a guest editor for JASP, IEEE-SP Sig. Proc. Mag. and for IEEE-COM JSAC. He is a member of the IEEE-SPS Awards Board and of the EURASIP JWCN Awards Committee. He was the General Chair of the IEEE-SP SPAWC'06 workshop. He is a Fellow of the IEEE.
 

Petros Elia received the M.Sc. and Ph.D. in electrical engineering from the University of Southern California (USC), Los Angeles, in 2001 and 2006 respectively. Since February 2008 he has been an Assistant Professor with the Department of Mobile Communications at EURECOM in Sophia Antipolis, France. His research interests include combining approaches from different sciences, such as mathematics, physics, and from information theory, complexity theory, and game theory, towards analysis and algorithmic design for distributed and decentralized communication networks.
 

His latest research deals with MIMO, cooperative and multiple access protocols and transceivers, complexity of communication, isolation and connectivity in dense networks, queueing theory and cross-layer design, coding theory, information theoretic limits in cooperative communications, and surveillance networks.  He is a Fulbright scholar, the co-recipient of the SPAWC-2011 best student paper award (2006), and of the NEWCOM++ distinguished achievement award 2008-2011.