6G Wireless Communications: Future Technologies and Research Challenges

TLDR

5G is being deployed for many smart applications, but its specifications fall short of the data‑rate, capacity, latency, reliability, resource‑sharing, and energy‑per‑bit requirements of emerging technologies. The study aims to advance 6G wireless communications to satisfy these demanding requirements and enable new technologies and applications. The authors review recent 6G research on technologies and applications while outlining the key research challenges.

Abstract

5G wireless communications technology is being launched, with many smart applications being integrated. However, 5G specifications meagre the requirements of new emerging technologies forcefully. These include data rate, capacity, latency, reliability, resources sharing, and energy/bit. To meet these challenging demands, research is focusing on 6G wireless communications enabling different technologies and emerging new applications. In this paper, the latest research work on 6G technologies and applications is summarized, and the associated research challenges are discussed.