Dynamic Spectrum Sharing and Bandwidth-Efficient Techniques in Non-Terrestrial Networks

Tuesday, 8 June 2021, 09:30-13:00, Zoom Room
  • Alessandro Vanelli-Coralli (University of Bologna, Italy)


Motivation and Context

Non-Terrestrial Networks(NTNs) are fundamental components in support of Europe’s ambition to deploy smart and sustainable networks and services for the success of its digital economy and to achieve the ambitious goals set forth by the Communication on “Connectivity for a Competitive Digital Single Market –Towards a Gigabit society”. The inclusion in the 5G ecosystem, foreseen in Release 17 of the 3GPP specifications, of the NTN component will improve the system flexibility, adaptability, and resilience, and will extend the 5G coverage to rural, underserved, and unserved areas. From a pure broadcast and broadband delivery instrument, NTNsare therefore becoming an essential ingredient to efficiently support the concept of wireless connectivity anywhere, anytime, at any device.B5G and 6G infrastructures will evolve towards a unified architecture with no distinction between the terrestrial and non-terrestrial components. In this framework, the efficient and dynamic use of the available spectrum resources is a fundamental element to achieve a cost and energy efficient infrastructure. Spectrum coexistence, sharing, and exploitation are keywords that shall drive the design and management of the new B5G/6G infrastructure. This tutorial aims at providing an insight in the techniques suitable for dynamic spectrum sharing and bandwidth efficient use in integrated terrestrial and non-terrestrial B5G architecture with specific emphasis on an NTN component consisting in a mega-constellation of Low Earth Orbit (LEO) satellites.


Structure and Content

Part 0 – Welcome  (Alessandro Vanelli-Coralli)

Part I –Introduction and general framework  (Alessandro Guidotti)

  • Introduction to Non-Terrestrial Networks (orbits, constellations, link budgets, propagation aspects, system elements)
  • The NTN component in the 3GPP context (architectures and integrationwith the terrestrial component)
  • Scenarios, Servicesand use cases

Part II –Bandwidth efficient techniques  (Alessandro Ugolini)

  • Introduction to interference management and exploitation transmission techniques
  • Multi-user MIMO cooperation techniques
  • The advanced mega-constellation case

Part III -Dynamic spectrum sharing and coexistence techniques  (Heiki Kokkinen)

  • Introduction to Dynamic spectrum sharing and coexistence techniques
  • Satellite communications network characteristics affecting Dynamic spectrum sharing
  • Dynamic spectrum sharing solutions for NGSO satellite communications

Conclusions  (Alessandro Vanelli-Coralli)

Alessandro Vanelli-Coralli

Alessandro Vanelli-Coralli, received the Dr. Ing. Degree (cum laude) in Electronics Engineering and the Ph.D. in Electronics and Computer Science from the University of Bologna (Italy) in 1991 and 1996, respectively. In 1996, he joined the Department of Electrical, Electronic and Information Engineering – Guglielmo Marconi at the University of Bologna, where he is an Associate Professor. From 2013 to 2018 he was the Chairperson of the Board of the Ph.D Program in Electronics, Telecommunications, and Information Technologies. During 2003 and 2005, he was a Visiting Scientist at Qualcomm Inc. (San Diego, CA), working in the Corporate R&D Department on Mobile Communication Systems. His research activity focuses on Wireless Communication with specific emphasis on Satellite Communications. He participates in national and international research projects on satellite communications serving as Scientific Responsible and Coordinator for several European Space Agency and European Commission funded projects. Currently, he coordinates the H2020 Space-19-Tec-2020 project “DYNASAT”. He participates to industrial and scientific fora and bodies. He is theResponsible for the Vision and Research Strategy SatCom task force of the Networld2020, the editor for the SatCom Chapter of the Networld2020 Strategic Research and Innovation Agenda 2021-2027,and the delegate for the University of Bologna in the 5GIA. Dr. Vanelli-Coralli is a member of the Editorial Board of the Wiley Journal on Satellite Communications and Networks and has been guest co-Editor for several special issues in of scientific journals. Dr. Vanelli-Coralli has served in the organization committees of scientific conferences and since 2010 he is the general Co-Chairman of the IEEEASMS Conference. He co-authored more than 200 peer-reviewed papers in scientific journals and conferences and he is co-recipient of several Best Paper Awards. Dr. Vanelli-Coralli is an IEEE Senior Member and the 2019 recipient of the 2019 IEEE Satellite Communications Technical Recognition Award.