La Universidad Carlos III de Madrid (UC3M) participa en la decimoséptima edición de la Semana de la Ciencia de Madrid con más de una treintena de actividades gratuitas que permiten conocer de primera mano la I+D+i de la institución. IMDEA Networks colabora en un espectáculo multimedia, teatral y divulgativo para explorar los efectos de la tecnología 5G en la vida cotidiana  que se celebrará el 7 de noviembre en el Auditorio de la UC3M.  

Access to a common (communication) resource has been one of the fundamental problems in the various networking technologies that have emerged over the last half a century.

Queueing theory, the set of probabilistic techniques that study waiting lines or queues, is a fundamental tool to analyze the performance of modern telecommunication networks. In this talk, we present the results of the performance analysis of two queueing systems.

Over the past decades, large-scale and decentralized cyber-physical systems (CPS) have emerged, benefiting from the commoditization of computation, sensing and communication.

A new two-dimensional modulation technique called Orthogonal Time Frequency Space (OTFS) modulation designed in the delay-Doppler domain is introduced as a waveform ideally suited to new 5G use cases. Through this design, which exploits full diversity over time and frequency, OTFS coupled with equalization converts the fading, time-varying wireless channel experienced by modulated signals such as OFDM into a time-independent channel with a complex channel gain that is roughly constant for all symbols. Thus, transmitter adaptation is not needed. This extraction of the full channel diversity allows OTFS to greatly simplify system operation and significantly improves performance, particularly in systems with high Doppler, short packets, and large antenna arrays. Simulation results indicate at least several dB of block error rate performance improvement for OTFS over OFDM in all of these settings which translates to significant spectral efficiency improvements.

SoftAir is a new wireless software-defined architecture with network function virtualization (NFV) solutions for 5G wireless systems. The concept of SDN has been proposed to efficiently create centralized network abstraction with the provisioning of programmability over the entire network.

5G is on the horizon. In this talk, I will take a service-oriented perspective of 5G aimed at supporting a wide range of services, differing significantly in their service requirements and device types (including machine-type devices).

After a number of years of its launch, OpenFlow does not yet provide deployable alternatives but it has fully changed the conceptual approach to manage and control networks.

The seminar will cover the current status of the standardization in 3GPP of the new 5G radio interface (NR) and core network (NGC), including the steps undertaken for the acceleration process recently approved, that will allow for early implementations by the end of 2018.