Enhancing 6G Communication Ecosystems with Blockchain Technology: A Comprehensive Survey

The landscape of the communication system is undergoing a rapid evolution, emphasizing the need for intelligence, efficiency, and adaptability to enable cloud computing, Internet-of-Everything, and cyber-physical systems. With the rapidly growing complexities and interconnectivities of the systems, assurance of security and privacy is of paramount importance. The inherent nature of blockchain technology is its immutability, decentralization, anonymity, and transparency. It has the potential to establish trust between distributed networks through secure access management, robust authentication, improved integrity, confidentiality, and optimized resource allocation. Implementation of blockchain technology in 6G communication systems is likely to introduce dramatic innovations, enabling digital economy growth and enhancing societal functioning and connectivity. This article delves into the history of the evolution of mobile communications from 1G to 6G, the significance of blockchain technology in 6G, and the latest advances in terahertz antennas that can make an immense contribution to the field of 6G technology.