Towards 6G Communications: Architecture, Challenges, and Future Directions

TL;DR

This paper surveys the evolving landscape of 6G cellular networks, discussing architecture, technological challenges, and future research directions to guide practical implementation and innovation.

Contribution

It provides a comprehensive overview of 6G architecture, key requirements, challenges, and future directions, filling a gap in current research and guiding future developments.

Findings

Identifies key requirements and features of 6G networks.

Highlights major challenges in 6G deployment and technology.

Suggests future research areas for 6G development.

Abstract

The cellular network standard is gradually stepping towards the 6th Generation (6G). In 6G, the pioneering and exclusive features, such as creating connectivity even in space and under water, are attracting Governments, organizations and researchers to spend time, money, effort extensively in this area. In the direction of intelligent network management and distributed secured systems, Artificial Intelligence (AI) and blockchain are going to form the backbone of 6G, respectively. However, there is a need for the study of the 6g architecture and technology, such that researchers can identify the scopes of improvement in 6G. Therefore, in this survey, we discuss the primary requirements of 6G along with its overall architecture and technological aspects. We also highlight crucial challenges and future research directions in 6G networks, which can lead to the successful practical implementation of 6G, as per the objective of its introduction in next generation cellular networks.