Title: Wireless resource and infrastructure sharing challenges in future wireless architectures
Speaker: Iordanis Koutsopoulos (Associate Professor, Athens University of Economics and Business)
Abstract: Future wireless architectures are expected to be dominated by composite and complex regimes that pertain to the constituent infrastructure and the interaction of the different stakeholders that will evolve around that infrastructure. On the one hand, 5G architectures will dictate the use of common infrastructure for deployment of services through a set of service providers (SPs) while other entities will cater for allocation of resource (computational power, link bandwidth) slices to support the services. On the other hand, various architectures such as wireless community networks aim to make a step forward by addressing the digital divide and making network connectivity a reality for all people. Wireless community networks fall within the class of crowd sourced networks whereby the network equipment is contributed by end-users and other professional actors and the shared infrastructure is used to deploy services to users. In this tutorial we will discuss both technological and economics aspects of different architectures such as the ones above. We will review game theoretic tools that are used to analyze and optimize these models such as economics of infrastructure sharing (cost sharing, revenue sharing, pricing models and related research issues), economics of investing in the infrastructure, and incentive mechanisms for different stakeholders. We will also give a conceptual overview and an algorithmic approach to network slicing with emphasis on different involved network optimization problems.
Biography: Iordanis Koutsopoulos is Associate Professor with the Department of Informatics, Athens University of Economics and Business (AUEB), Athens, Greece since 2016. He received the Diploma degree in Electrical and Computer engineering from the National Technical University of Athens (NTUA), Athens, Greece, in 1997, and the M.S. and Ph.D. degrees in electrical and computer engineering from the University of Maryland, College Park, College Park, MD, USA, in 1999 and 2002, respectively. Between 2013-2016 he was an Assistant Professor with AUEB. Before that, he was an Assistant Professor (2010-2013) and a Lecturer (2005- 2010) with the Department of Computer Engineering and Communi- cations, University of Thessaly, Volos, Greece. His research interests include network control and optimization, with applications on wireless networks, social and community networks, crowd-sensing systems, smart-grid, and cloud computing. He has participated in and coordinated various European and National projects on wireless networking. was the recipient of the single-investigator European Research Council (ERC) Competition Runner- Up Award for the project RECITAL: Resource Management for Self- coordinated Autonomic Wireless Networks (2012-2015).
Title: A Primer on 5G Network Slicing: Concepts, Algorithms and Practice
Abstract: 5G mobile networks will be characterized by a variety of services imposing a diversity of requirements. To efficiently provide services that meet these requirements, one key enabling technology is network slicing, which can be seen as the “next step” in the softwarization of networks, and the logical consequence of the adoption of Software Defined Networking (SDN) and Network Functions Virtualisation (NFV). This tutorial will overview, first, the key concepts related to 5G, introducing network slicing as an enabler for the efficient provision of services. Then, we will review the challenges when slicing the network, along with current technologies, algorithms and standards to implement it. Finally, we will review current and future lines of research, and report some initial implementation experiences.
Biography: Dr. Pablo Serrano has been with the Telematics Department of UC3M since 2002, where he currently holds the position of Associate Professor. He has held visiting positions at Univ. Massachusetts Amherst, Univ. of Edinburgh, Trinity College Dublin and Telefónica R+D Barcelona. He has over 80 scientific papers in peer-reviewed international journal and top conferences, including IEEE/ACM ToN, IEEE INFOCOM, ACM CoNEXT, IEEE TMC, has served on the TPC of many of many conferences (IEEE INFOCOM, IEEE Globecom) and performed editorial activities for IEEE Comm. Letters and Elsevier Computer Networks. His work and that from his students has been awarded several times (best PhD theses, best paper awards). His research interests lie in the analysis of wireless networks and the design of network protocols and systems. He also enjoys carrying out experimental performance evaluation of protocols and communication systems. He has participated in various National and European research projects, acting as Principal Investigator of the recent H2020 Flex5Gware and Tigre5-CM projects on the development of 5G systems. He is a senior member of the IEEE.