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5G – Standardization, current state and evolution

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. 

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OTFS: A New Generation of Modulation Addressing the Challenges of 5G

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.


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Towards a Future Multi-Service Mobile Network Architecture

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).

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Accessing Resources in (city-wide) Networked Environments: Issues and alternatives

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.

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International Conference on Embedded Wireless Systems and Networks (EWSN 2018)

The International Conference on Embedded Wireless Systems and Networks (EWSN) is a highly selective single-track international conference focusing on premier research results at the intersection of embedded systems and wireless networking – an area of highest relevance for visionary technologies such as the Internet of Things or Cyber-Physical Systems and application domains such as Smart Production, Smart Cities, or Connected Cars.

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Telefónica comparte con 5TONIC su visión sobre las tendencias y perspectivas del sector

Invitado por 5TONIC, D. Carlos Gavilanes, Director de Estrategia de Telefónica Corp., ha compartido con algunos destacados expertos de IMDEA Networks y la Universidad Carlos III (UC3M) la visión de la compañía sobre las principales tendencias de la industria y las perspectivas sectoriales para los próximos tres años.

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Jornada Comunicaciones 5G: Retos y oportunidades en sectores claves – Sectores de aplicación, tecnologías e I+D+i

Ponentes del máximo nivel presentarán en esta jornada la futura tecnología de comunicaciones 5G, y los retos y oportunidades que 5G supondrá para múltiples sectores relevantes de la actividad económica. Las grandes empresas a nivel mundial ya se están posicionando para paliar las amenazas, y aprovechar las oportunidades, que 5G provocará a medio plazo.

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I Conferencia IMDEA - Ciencia, Empresa y Sociedad

El 6 de Noviembre de 2015 el Instituto IMDEA Materiales será el anfitrión de la I Conferencia IMDEA, Ciencia, Empresa y Sociedad, inaugurada por la presidenta de la Comunidad de Madrid, Dª Cristina Cifuentes y por la Secretaria de Estado de Investigación, Desarrollo e Innovación, Dª Carmen Vela.

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Defensa Tesis Doctoral: Analytical characterization of in-band and out-band D2D communications for network access

Cooperative short-range communication schemes provide powerful tools to solve interference and resource shortage problems in wireless access networks. With such schemes, a mobile node with excellent cellular connectivity can momentarily accept to relay traffic for its neighbors experiencing poor radio conditions and use Device-to-Device

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Defensa Tesis Doctoral: Analyzing the Behavior of Students Regarding Learning Activities, Badges, and Academic Dishonesty in MOOC Environments

The 'big data' scene has brought new improvement opportunities to most products and services, including education. Web-based learning has become very widespread over the last decade, which in conjunction with the MOOC phenomenon, it has enabled the collection of large and rich data samples regarding the interaction of students with these educational online environments. 

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