Each speaker has been asked to take some time to generate some discussion, on top of the traditional questions from the audience.
10:00 - 10:45 : Presentation
Josu Doncel Vicente (Assistant Professor in the University of the Basque Country)
Title: Size-Interval Routing to Parallel-Servers: economies of scale, performance balancing and asymptotical analysis
Summary: The question of how to route optimally jobs in parallel-server systems is of great importance since they model a wide range of systems such as data-centers or web-servers. In the size-interval routing each host serves jobs whose service demand is in a designated range. This routing policy is interesting from the practical point of view since it does not require signaling between the routers and servers. First, we consider the economies of scaling up the arrival rate and the number of servers proportionally and we study how the degradation increases with the variability of the incoming job size distribution. Then, we present a size-interval routing that, instead of optimizing the performance of the system, balances the performance of the queues and we study the properties of this new routing policy. Finally, we analyze the performance of this system under an asymptotical regime where the system capacity grows linearly with the system demand to infinity and we present optimality results of this regime.
11:00 - 11:45 : Presentation
Emilio Calvanese Strinati (Researcher at CEA-LETI)
Title: Joint Communication, Computing and Caching for Beyond 5G Wireless Networks
Summary: Distributed intelligent systems supporting the Internet of Everything require energy efficient, low latency and highly reliable ways to bring information technology (IT) support close to devices. Virtualization of network functionalities and mobile edge computing (MEC) are key tools for application-centric networking. Recent research has focused on the benefits of merging MEC with millimeter wave (mmW) communications to enable low latency and high reliability services, the goal being to benefit from the high data rate of mmW links and the ability to handle interference through massive beamforming. However, mmW links are prone to (unpredictable) blocking events which could limit the effectiveness of the mmW-MEC deployment. This talk will present technical results on architectural methods and related algorithms to overcome blocking events and make mmW-MEC robust, using three strategies: i) overbooking computation and communication resources, based on the statistics of blocking events, ii) adopting multi-link communications and iii) using a joint multi-link communication and block-erasure correcting code design. We will also address the hardware requirements and their implications.