Abstract-Wireless Terahertz System Architectures for Networks Beyond 5G
Alexandros-Apostolos A. Boulogeorgos,
Angeliki Alexiou,
Dimitrios Kritharidis,
Alexandros Katsiotis,
Georgia Ntouni,
Joonas Kokkoniemi,
Janne Lethtomaki,
Markku Juntti,
Dessy Yankova,
Ahmed Mokhtar,
Jean-Charles Point,
Jose Machado,
Robert Elschner,
Colja Schubert,
Thomas Merkle,
Ricardo Ferreira,
Francisco Rodrigues,
Jose Lima
The present white paper focuses on the system requirements of TERRANOVA. Initially details the key use cases for the TERRANOVA technology and presents the description of the network architecture. In more detail, the use cases are classified into two categories, namely backhaul & fronthaul and access and small cell backhaul. The first category refers to fibre extender, point-to-point and redundancy applications, whereas the latter is designed to support backup connection for small and medium-sized enterprises (SMEs), internet of things (IoT) dense environments, data centres, indoor wireless access, ad hoc networks, and last mile access. Then, it provides the networks architecture for the TERRANOVA system as well as the network elements that need to be deployed. The use cases are matched to specific technical scenarios, namely outdoor fixed point-to-point (P2P), outdoor/indoor individual point-to-multipoint (P2MP), and outdoor/indoor "quasi"-omnidirection, and the key performance requirements of each scenario are identified. Likewise, we present the breakthrough novel technology concepts, including the joint design of baseband signal processing for the complete optical and wireless link, the development of broadband and spectrally efficient RF-frontends for frequencies >275 GHz, as well as channel modelling, waveforms, antenna array and multiple-access schemes design, which we are going to use in order to satisfy the presented requirements. Next, an overview of the required new functionalities in both physical (PHY) layer and medium access control (MAC) layers in the TERRANOVA system architecture will be given. Finally, the individual enablers of the TERRANOVA system are combined to develop particular candidate architectures for each of the three technical scenarios.
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