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Design of cellular, satellite, and integrated systems for 5G and beyond
Kim, Junhyeong,Casati, Guido,Cassiau, Nicolas,Pietrabissa, Antonio,Giuseppi, Alessandro,Yan, Dong,Strinati, Emilio Calvanese,Thary, Marjorie,He, Danping,Guan, Ke,Chung, Heesang,Kim, Ilgyu Electronics and Telecommunications Research Instit 2020 ETRI Journal Vol.42 No.5
5G AgiLe and fLexible integration of SaTellite And cellulaR (5G-ALLSTAR) is a Korea-Europe (KR-EU) collaborative project for developing multi-connectivity (MC) technologies that integrate cellular and satellite networks to provide seamless, reliable, and ubiquitous broadband communication services and improve service continuity for 5G and beyond. The main scope of this project entails the prototype development of a millimeter-wave 5G New Radio (NR)-based cellular system, an investigation of the feasibility of an NR-based satellite system and its integration with cellular systems, and a study of spectrum sharing and interference management techniques for MC. This article reviews recent research activities and presents preliminary results and a plan for the proof of concept (PoC) of three representative use cases (UCs) and one joint KR-EU UC. The feasibility of each UC and superiority of the developed technologies will be validated with key performance indicators using corresponding PoC platforms. The final achievements of the project are expected to eventually contribute to the technical evolution of 5G, which will pave the road for next-generation communications.
6G in the sky: On-demand intelligence at the edge of 3D networks (Invited paper)
Strinati, Emilio Calvanese,Barbarossa, Sergio,Choi, Taesang,Pietrabissa, Antonio,Giuseppi, Alessandro,De Santis, Emanuele,Vidal, Josep,Becvar, Zdenek,Haustein, Thomas,Cassiau, Nicolas,Costanzo, France Electronics and Telecommunications Research Instit 2020 ETRI Journal Vol.42 No.5
Sixth generation will exploit satellite, aerial, and terrestrial platforms jointly to improve radio access capability and unlock the support of on-demand edge cloud services in three-dimensional (3D) space, by incorporating mobile edge computing (MEC) functionalities on aerial platforms and low-orbit satellites. This will extend the MEC support to devices and network elements in the sky and forge a space-borne MEC, enabling intelligent, personalized, and distributed on-demand services. End users will experience the impression of being surrounded by a distributed computer, fulfilling their requests with apparently zero latency. In this paper, we consider an architecture that provides communication, computation, and caching (C3) services on demand, anytime, and everywhere in 3D space, integrating conventional ground (terrestrial) base stations and flying (non-terrestrial) nodes. Given the complexity of the overall network, the C3 resources and management of aerial devices need to be jointly orchestrated via artificial intelligence-based algorithms, exploiting virtualized network functions dynamically deployed in a distributed manner across terrestrial and non-terrestrial nodes.