Shift to 6G: Exploration on trends, vision, requirements, technologies, research, and standardization efforts

Recent technological breakthroughs and significant expansion in the number of Internet-of-Things (IoT) devices, a new paradigm of unparalleled user experiences, dramatically improved a host of innovative applications, and the emergence of various use cases has begun. To achieve this, a much better adaptable communication network architecture is required, one that is exceptionally intelligent and capable of providing hyper-fast, ultra-reliable, and low-latency communications. These needs of the next-generation wireless communication systems are expected to be met by sixth-generation (6G) communication technologies. The standardization process for fifth-generation is now complete, and the worldwide installation has begun. To keep cellular networks competitive, a collaboration between industry and academics has already commenced in designing the next phase called “6G” in communication networks. It provides the groundwork for layering the communication demands arising in the 2030s. 6G perception, services, technology, and standardization are all hot topics in academics and industries. In pursuit of this ambition, this paper outlines the most prospective avenues of 6G research from current literature. In this investigation, the paper highly focuses on state-of-art driving factors and technological developments propelling the 6G revolution. In this study, emerging applications and requirements are also discussed in depth. Then, to provide a perspective on the global aspect of 6G development, the frameworks for existing and ongoing research projects and activities, including standardization efforts, are reviewed. Finally, specific issues have been incorporated to give new insight into future development approaches towards 6G based on developing demands in the coming years.