AOC2015: The Ninth IEEE WoWMoM Workshop on Autonomic and Opportunistic Communications

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Keynote Speech

OPPORTUNISTIC OFFLOADING ON THE EDGE

Dr. Thrasyvoulos Spyropoulos

Abstract The rapid increase in data traffic demand has overloaded existing cellular networks. Planned upgrades in the communication architecture (e.g. LTE), while helpful, are not expected to keep up with demand. Caching content closer to (e.g. at a small cell) or even at the device, together with device-to-device (D2D) communications are seen as necessary components for future heterogeneous cellular networks to withstand the data crunch. In this context, Opportunistic Networking offers an additional degree of freedom. A device interested in a content can wait for some amount of time until it moves within range of a local cache with that content (e.g. another device). Hence, some delay can be traded off with a further reduction in the traffic load served by the (congested) cellular infrastructure. In this talk, we will formulate the problem of storage and communication for an edge-based opportunistic offloading system, and provide some analytical insights regarding the potential offloading benefits and associated costs. Based on these insights, we will also provide guidelines as to how to optimize this system. Throughout the talk we will consider scenarios related to offloading through UEs only, hybrid offloading in HetNet environments, and offloading through a vehicular ``cloud''.

Bio
Thrasyvoulos Spyropoulos is an Assistant Professor in Eurecom, Sophia-Antipolis. He holds a PhD degree from the University of Southern California (USC), Los Angeles and a diploma in Electrical and Computer Engineering from the National Technical University of Athens (NTUA). Before joining EURECOM he spent a year as a post-doctoral researcher at INRIA, Sophia-Antipolis, and 3 years as a Senior Researcher and Lecturer at ETH Zurich. His research interests include performance analysis, delay-tolerant networks, mobility modeling, 5G networks, and social networks. He has co-authored more than 50 publications in international conferences and journals, has served in the TPC of top-tier conferences, such as ACM Mobihoc, ACM Sigmetrics, and IEEE Infocom, and has co-chaired the ACM CHANTS 2013 and IEEE NetSciCom 2014 workshops. He is also the co-recipient of the best paper awards at IEEE Secon 2008, IEEE WoWMoM 2012, and a best paper award runner-up for ACM Mobihoc 2011.