A Survey on Future Generation Wireless Communications-6G: Requirements, Technologies, Challenges and Applications

Abstract

Within the last few decades, wireless connectivity has experienced an exponential growth. With far more features than 4G communications, next-generation (5G) will soon be available worldwide. In the year 2027 to 2030, the sixth- generation (6G) wireless system, fully supported by artificial intelligence, will become the dominant paradigm for wireless communication. Beyond 5G, the main factors to consider are higher system capacity, greater data rates, reduced latency, enhanced security, and improved quality of service (QoS) compared to current 5G systems. In this paper, we describe the strategy for future 6G wireless networks, emerging technologies and the architecture within which they will operate. This paper focuses on key performance indicators, applications, new services, and key technologies that could enable 6G networks. By presenting a new perspective on future research directions, this article will make a significant contribution to future research directions.

A Survey On Wireless Communications : 6g And 7g

“…2G : Technologies such as GSM (Global System for Mobile Communication) were introduced in the early 1990s. 2G networks implement digital modulation techniques such as Time Division Multiple Access (TDMA) and Code Division Multiple Access (CDMA), which can handle both voice and short message applications [6]. A digital voice and data delivery system now allows users to send and receive digital voice and data over the network.…”

“…Technology such as HSUPA, HSDPA, and EVDO are used in 3.5G to achieve faster data rates than 3G. Video quality was improved considerably with this generation [6]. Data rates were highest compared to previous generations [2].…”

“…5G must meet major challenges if it is to provide reliable, secure, and efficient service [5].Even though 5G technology is still not fully implemented, we need to begin to research 6G networks [6]. On March 23, 2019 during the world's first 6G summit in Finland with the world's top communications experts, the world's top communications experts drafted the world's first 6G whitepaper.…”

“…On March 23, 2019 during the world's first 6G summit in Finland with the world's top communications experts, the world's top communications experts drafted the world's first 6G whitepaper. As a result, 6G became an unofficial research field [6]. In recent years, more and more governments and non-governmental organizations have declared their intent to take part in 6G research.…”

“…6G does not have any set specifications or standards, but a wide range of applications. Some people believe that 6G networks should not be merely faster versions of 5G, but instead represent an improved version of 5G technology [6]. In terms of coverage, although the 5G network has its limitations, it does not have to be limited to the ground.…”