DEI/CISUC Seminars

Publication Date: 2019-03-14 15:39:42

March 15, Friday,
13h (sharp),
Room A.5.4 DEI-FCTUC

Invited Speaker: Torsten Braun

Title: "Mobile Edge Computing and Caching"

Abstract: Mobile Edge Computing (MEC) provides computing and caching services at the edge of the wireless access network in order to minimize delay and customize services to the characteristics of the wireless access network. Proactive content placement and caching can support low-latency access to any kind of information. The efficiency of such proactive caching very much depends on the accuracy of mobility prediction. Mobility prediction can be improved by using machine learning techniques and combinations of them. However, mobility prediction accuracy very much depends on the quality of the available mobility data. In cases, where mobility prediction is not accurate enough, we found out that the benefits of caching can be improved by placing content rather in the core network than at the edge. In addition to caching, adaptive video streaming considering physical radio conditions is another example for a MEC service. We have implemented an adaptive video streaming solution for MEC based on Dynamic Adaptive Streaming over HTTP in a LTE network. Moreover, we are investigating localization of indoor users by outsourcing processing-intensive localization services to a MEC infrastructure.

Short-bio: Torsten Braun got his Ph.D. degree from University of Karlsruhe (Germany) in 1993. From 1994 to 1995 he has been a guest scientist at INRIA Sophia-Antipolis (France). From 1995 to 1997 he has been working at the IBM European Networking Centre Heidelberg (Germany) as a project leader and senior consultant. He has been a full professor of Computer Science at the University of Bern (Switzerland) and head of the research group "Communication and Distributed Systems" since 1998. He has been member of the SWITCH (Swiss education and research network) board of trustees since 2001. Since 2011, he has been vice president of the SWITCH foundation. Since 2017, he has been Vice Dean of the Faculty of Science at University of Bern.