Designing Virtualized Radio Access Networks

Department of Electrical Engineering & The Yale Institute for Network Science (YINS)

Designing Virtualized Radio Access Networks

George Iosifidis
Ussher Assistant Professor in Future Networks, Trinity College 

Abstract: Virtualized Radio Access Network (vRAN) architectures and Multiple-access Edge Computing (MEC) systems constitute two key solutions for serving the ever-increasing mobile data traffic and for supporting low-latency services. Their efficient deployment, however, requires a careful design tailored to the available network resources and expected demand. In this talk we will present a novel modeling approach and a rigorous analytical framework, MvRAN, that minimizes vRAN costs and maximizes the performance of the services. Our framework selects jointly the base station function splits, the fronthaul routing paths, and the placement of MEC functions. We follow a data-driven 3GPP-compliant evaluation method, using 3 operational networks and experiments with a typical face-recognition service, finding that MvRAN achieves significant cost savings (up to 2.5 times) compared to non-optimized C-RAN or D-RAN systems.

Bio: George Iosifidis is the Ussher Assistant Professor in Future Networks, Trinity College Dublin, Ireland. He obtained his M.Sc. (2007) and Ph.D. (2012) degrees from the Department of Electrical and Computer Engineering, University of Thessaly, Greece, and holds an engineering diploma in avionics and quality control from the Greek Air Force Academy. He worked as a Post-doctoral researcher at CERTH/Greece and Yale university for 2 years respectively, as an associate research scientist at Yale for 1 year, and as an aircraft engineer from 2001 to 2012. His research interests lie in the area of network optimization and network economics with applications to wireless networks and edge computing. His work has appeared in Nature Communications, Nature Human Behavior and PNAS, and has received Best Paper Awards in IEEE WiOpt 2013 and IEEE INFOCOM 2017. Dr. Iosifidis is a Guest Editor for the IEEE JSAC Special Issue on Caching, an Editor for IEEE Trans. on Communications and for IEEE/ACM Trans. on Networking and has received a 2018 SFI Career Development Award.

Hosted by: Professor Leandros Tassiulas

Tuesday, November 5, 2019 at 11:00am
Location: 17 Hillhouse Avenue, Room 335