| dc.description.abstract | With the open of the scale-up commercial deployment of 5G network, more and more
researchers and related organizations began to consider the next generation of mobile
communication system. This article will explore the 6G concept for 2030s. Firstly, this article
summarizes the future 6G vision with four keywords: "Intelligent Connectivity", "Deep
Connectivity", "Holographic Connectivity" and "Ubiquitous Connectivity", and these four
keywords together constitute the 6G overall vision of "Wherever you think, everything
follows your heart ". Then, the technical requirements and challenges to realize the 6G vision
are analyzed, including peak throughput, higher energy efficiency, connection everywhere and
anytime, new theories and technologies, self-aggregating communications fabric, and some
non-technical challenges. Then the potential key technologies of 6G are classified and
presented: communication technologies on new spectrum, including terahertz communication
and visible light communication; fundamental technologies, including sparse theory
(compressed sensing), new channel coding technology, large-scale antenna, flexible spectrum
usage and AI-based wireless communication; special technical features, including Space-Air Ground-Sea integrated communication and wireless tactile network. By exploring the 6G
vision, requirements and challenges, as well as potential key technologies, this article attempts
to outline the overall framework of 6G, and to provide directional guidance for the subsequent
6G research. Keywords 6G, vision, terahertz, VLC, compressed sensing, free duplex, wireless
tactile network. | en_US |
