Chapter 4
Key 6G Technologies
Chamitha de Alwis,
Quoc-Viet Pham, Madhusanka Liyanage,
Chamitha de Alwis
University of Bedfordshire, Luton, United Kingdom
Search for more papers by this authorBook Author(s):Chamitha de Alwis,
Quoc-Viet Pham, Madhusanka Liyanage,
Chamitha de Alwis
University of Bedfordshire, Luton, United Kingdom
Search for more papers by this authorFirst published: 25 November 2022
Summary
This chapter provides an overview of key technologies in future sixth-generation (6G) wireless systems. It presents important 6G radio network technologies, including terahertz (THz) communications and nonterrestrial networks toward 3D networking. THz band channel is highly frequency-selective. These channels suffer from high atmospheric absorption, atmospheric attenuation, and free-space path loss. Thanks to distinctive features and remarkable abilities, Artificial Intelligence (AI) has various applications in wireless and mobile networking. With 6G being envisioned to have AI/Machine Learning at its core, the role of AI/Federated Learning becomes important to 6G. The last couple of years have witnessed the rise of Distributed Ledger Technologies (DLT), in particular, blockchain technology. DLT is envisioned to unlock the doors to the decentralized future by overcoming the well-known impediments of centralized systems. One of the very first edge computing concepts, the so-called cloudlet, was proposed in 2009.
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