Palestras Convidadas

Palestra do Prof. Dr. Vijay K. Bhargava

Dia 07.05.2013

Title: Research Issues for Energy Efficient Cellular Networks


The rising energy costs and carbon footprint of operating cellular networks have led to a trend in addressing energy-efficiency amongst the network operators and regulatory bodies such as 3GPP and ITU. “Greening” the wireless networks is a vast research discipline that needs to cover all the layers of the protocol stack and various system architectures and it is important to identify the fundamental trade-offs linked with energy efficiency and the overall performance. In this talk, we identify four important aspects of a green networking where we would like to focus: defining green metrics, bringing architectural changes in base stations, network planning, and efficient system design. We begin with a brief discussion on energy efficiency metrics. Since Base Stations (BSs) consume a major chunk of input energy, we discuss the energy efficiency of BSs. Next we discuss energy efficiency from a network planning perspective, based on smaller cells for heterogeneous networks. For system design, we put a special emphasis on cognitive and cooperative techniques in order to realize energy efficient cellular systems. Finally we discuss some broader perspectives and possible future trends in realizing a green cellular network technology.


Vijay Bhargava is a Professor in the Department of Electrical and Computer Engineering at the University of British Columbia in Vancouver, where he served as Department Head during 2003-2008. Previously he was with the University of Victoria (1984-2003) and Concordia University (1976-84). He received his Ph.D. from Queen’s University in 1974. He is a fellow of the IEEE, the Royal Society of Canada, the Canadian Academy of Engineering and the Engineering Institute of Canada.

Vijay has served on the Board of Governors of the IEEE Information Theory Society and the IEEE Communications Society. He has held important positions in these societies and has organized conferences such as ISIT’83, ISIT’95, ICC’99 and VTC 2002 Fall. He played a major role in the creation of the IEEE Transactions on Wireless Communications, and served as its editor-in-chief during 2007, 2008 and 2009. He is a past President of the IEEE Information Theory Society and is currently serving as the President of the IEEE Communications Society.

Palestras do Prof. Dr. Roberto Baldoni

Dia 08.05.2013

Title: Collaborative Financial Infrastructure Protection from cyber attacks

The recent virus attacks on the control center of the Iranian nuclear plants as well as those targeting the telecommunication and power grid infrastructures of Estonia and Georgia show how cyber attacks against
Critical Infrastructure (CI) are becoming increasingly prevalent and disruptive. In many respects, this results from growing exposure of the CI IT to the Internet, which is in turn, motivated by the desire to cut operational costs by switching to the open networking technologies, and off-the-shelf computing equipment.
Today, one out out of five attacks are accompanied by an extortion, and financial institutions are often subject of some of the most sophisticated and large-scale cyber attacks and frauds. Such attacks have been shown to incur serious tangible and intangible costs, which according to some estimates, could exceed 6 million US dollars per day. This is in
addition to numerous intangible costs associated among others with damage to reputation and degraded user experience.

This tutorial analyzes the structure of a financial infrastructure, its vulnerabilities to cyber attacks and the current countermeasures, then we show advantages in sharing information among financial players to detect and react more quickly to cyber attacks but also we investigates obstacles from organizational and cultural viewpoint. We demonstrate the viability of an Information Sharing approach from an ITC perspective by exploring how massive amounts of information being made available through a sharing mechanism can be leveraged for creating defense systems capable of protecting against globally scoped cyber attacks and frauds in a timely fashion.

Title: Distributed Systems technologies for smarter energy systems


The energy market is radically changing in many countries from natural monopoly to potential perfect competition. This shift can be done only thanks to the support of distributed systems technologies that are able to give necessary elasticity and smartness to the underlying power grid for correctly routing and billing energy from potentially multiple
(possibly micro) sources to the consumers while ensuring at the same time to the energy utility a reduction of the total cost of ownership.
From the consumers point of view, such technologies can play a fundamental role in creating powerful systems for saving energy. The talk will address distributed systems models, paradigms and technologies that can help making the grid smarter by learning, monitoring and predicting its behavior. To do that the amount of data as well as its velocity will be several orders of magnitude higher, than what we have to cope with today. Such data has to be processed, aggregated stored and analyzed in a soft real-time fashion. Several use-cases will be discussed from network grid operations to energy savings in residential Houses and public buildings.

Roberto Baldoni conducts research (from theory to practice) in the fields of distributed, pervasive and p2p computing, middleware platforms and information systems infrastructure with a specific emphasis on dependability and security aspects. He is currently the Director of the Sapienza Cyber Intelligence and Information Security Research Center and
he has been coordinator of several large scale national and EU projects.

Roberto Baldoni has been visiting researcher at INRIA, Cornell Univ. and EPFL. He regularly participates and chairs committees of premiership international conferences and workshops. Recently he has been General Chair of ACM DEBS 2008 and OPODIS 2012. From Jan. 1st 2013, Roberto Baldoni is Chair of the IEEE committee on Dependable Computing and Fault Tolerance and Chair of the Steering Committee of the International Conference on Dependable Systems and Networks. He is also member of the IFIP WG 10.4, member of the steering committees of ACM DEBS, and member
of the editorial board of IEEE Transactions on Parallel and Distributed Systems.

He is recipient of the ACM service of recognition Award(2002), the Service2Business Award (2010), the IBM Faculty Award (2010, 2012) and the EPTS innovation Award (2011).

Palestra do Prof. Dr. Raouf Boutaba

Dia 09.05.2013

Title: Heterogeneity Aware Cloud Resource Management: Challenges and Opportunities


The past few years have witnessed the rise of cloud computing, a paradigm that harnesses the massive resource capacity of data centers to support Internet services and applications in a scalable, flexible, reliable and cost-efficient manner. However, despite its success, recent literature has shown that effectively managing resources in production cloud environments remains to be a difficult challenge. A key reason behind this difficulty is that both resources and workloads found in production environments are heterogeneous. In particular, large cloud data centers often consist of machines with heterogeneous resource capacities and performance characteristics. At the same time, real cloud workloads show significant diversity in terms of priority, resource requirements, demand characteristics and performance objectives. Consequently, finding an effective resource management solution that leverages resource heterogeneity to support diverse application performance objectives becomes a difficult problem.

The focus of this talk will be on understanding the research challenges introduced by resource and workload heterogeneity in production cloud environments. We will first provide a characterization of workload and resource heterogeneities found in production data centers, and highlight the key challenges introduced by them. We will then describe our recent work towards addressing some of these challenges. Finally, we will outline several key directions for future research.


Raouf Boutaba is a professor of computer science at the University of Waterloo (Canada) and a distinguished visiting professor at POSTECH (South Korea). He served as a distinguished speaker of the IEEE Communications Society and the IEEE Computer Society. He is the founding chair of the IEEE Communications Society Technical Committee on Autonomic Communications, and the founding Editor in Chief of the IEEE Transactions on Network and Service Management (2007-2010). He is currently on the advisory editorial board of the Journal of Network and Systems Management, and on the editorial board of the IEEE Transactions on Mobile Computing, the IEEE Communication Surveys and Tutorials, the KICS/IEEE Journal of Communications and Networks, the International Journal on Network Management (ACM/Wiley), the Wireless Communications and Mobile Computing (Wiley) and the Journal on Internet Services and Applications (Springer). His research interests include resource and service management in networked systems. He has published extensively in these areas and received several journal and conference best paper awards such as the IEEE 2008 Fred W. Ellersick Prize Paper Award, the 2001 KICS/IEEE Journal on Communications and Networks Best Paper Award, the IM 2007 and 2009 and the CNSM 2010 Best Paper Awards among others. He also received several recognitions such as the Premier’s Research Excellence Award, Nortel research excellence Awards, a fellowship of the Faculty of Mathematics, David R. Cheriton faculty fellowships, outstanding performance awards at Waterloo and the NSERC discovery accelerator award. He has also received the IEEE Communications Society Hal Sobol Award and the IFIP Silver Core in 2007, the IEEE Communications Society Joe LociCero award and the IFIP/IEEE Dan Stokesbury award in 2009, and the IFIP/IEEE Salah Aidarous award in 2012. He is a Fellow of the IEEE.

Palestra do Prof. Dr. Fabrizio Granelli

Dia 09/05/2013

Title: Networking and the Smart Grid – The relevance of communications in the future of power grid


The Smart Grid represents a clear step forward in improving power generation, distribution, consumption. Indeed, the Smart Grid is a digitally enabled electrical grid that gathers, distributes, and acts on information about the behavior of
all participants (suppliers and consumers) in order to improve the efficiency, importance, reliability, economics, and sustainability of electricity services. In this scenario, communications gain a central point as a key enabling technology in supporting the “intelligence” of the system. Nevertheless, the area of communications and associated knowledge can even play a greater role, in supporting modeling, simulation and design of the next generation power grid. The talk aims at providing an overview of the concept and architecture of the Smart Grid, focusing on the contributions of the communications community in terms of communications infrastructure and methodologies. Sample scenarios will be presented to illustrate the relevance of communications in future of the power grid.


Fabrizio Granelli is IEEE ComSoc Distinguished Lecturer for 2012-13, and Associate Professor at the Dept. of information Engineering and Computer Science (DISI) of the University of Trento (Italy). From 2008, he is deputy head of the academic council in Information Engineering.
He received the «Laurea» (M.Sc.) degree in Electronic Engineering from the University of Genoa, Italy, in 1997, with a thesis on video coding, awarded with the TELECOM Italy prize, and the Ph.D. in Telecommunications from the same
university, in 2001. Since 2000 he is carrying on his research and didactical activities (currently Associate Professor in Telecommunications) at the Dept. of Information Engineering and Computer Science – University of Trento (Italy). He was coordinator of the Networking Laboratory in 2006-2010. In August 2004 and August 2010, he was visiting professor at the State University of Campinas (Brasil).
He is author or co-author of more than 130 papers published in international journals, books and conferences. His main research activities are in the field of networking, with particular reference to performance modeling, cross-layering, wireless networks, cognitive radios and networks, green networking and smart grid communications.

Dr. Granelli is guest-editor of ACM Journal on Mobile Networks and Applications, special issues on “WLAN Optimization at the MAC and Network Levels”, “Ultra- Wide Band for Sensor Networks” and “Recent Advances in IEEE 802.11 WLANs:
Protocols, Solutions and Future Directions”, guest-editor of ACM TOMACS special issue on “Modeling and Simulation of Cross-layer Interactions in Communication Networks”, of Hindawi Journal of Computer Systems, Networks and Communications special issue on “Lightweight Mobile and Wireless Systems: Technologies, Architectures and Services”.
He was Co-Chair of 10th and 13th IEEE Workshop on Computer-Aided Modeling, Analysis, and Design of Communication Links and Networks (CAMAD’04 and CAMAD’08). Dr. Granelli is Founder and General Vice-Chair of the First International Conference on Wireless Internet (WICON’05) and General Chair of the 11th and 15th IEEE Workshop on Computer-Aided Modeling, Analysis, and Design of Communication Links and Networks (CAMAD’06 and
CAMAD’10). He is TPC Co-Chair of GLOBECOM 2007-2009 and 2012 Symposia on “Communications QoS, Reliability and Performance Modeling”. He was voting member of IEEE SCC41 for standards IEEE P1900.1 and IEEE P1900.2, and he’s currently voting member of the IEEE ComSoc Education Board.
He was officer (Secretary 2005-2006, Vice-Chair 2007-2008, Chair 2009- 2010) of the IEEE ComSoc Technical Committee on Communication Systems Integration and Modeling (CSIM), and Associate Editor of IEEE Communications
Letters (2007-2011) and Journal of Wireless Communications and Networking (2008-2011). He is Senior Member of IEEE and Associate Editor of IEEE Communications Surveys and Tutorials and Wiley International Journal on Communication Systems.