The Shift to 6G Communications: Vision and Requirements

TL;DR

This paper provides a comprehensive overview of 6G wireless communication, discussing its envisioned features, key technologies, potential applications, performance metrics, challenges, and future research directions.

Contribution

It offers a detailed analysis of 6G network dimensions, technologies, use cases, and key performance indicators, highlighting future research opportunities.

Findings

Identification of key 6G technologies like AI, QML, and terahertz communication.

Discussion of potential applications across various domains.

Analysis of challenges and future research directions in 6G development.

Abstract

The sixth-generation (6G) wireless communication network is expected to integrate the terrestrial, aerial, and maritime communications into a robust network which would be more reliable, fast, and can support a massive number of devices with ultra-low latency requirements. The researchers around the globe are proposing cutting edge technologies such as artificial intelligence (AI)/machine learning (ML), quantum communication/quantum machine learning (QML), blockchain, tera-Hertz and millimeter waves communication, tactile Internet, non-orthogonal multiple access (NOMA), small cells communication, fog/edge computing, etc., as the key technologies in the realization of beyond 5G (B5G) and 6G communications. In this article, we provide a detailed overview of the 6G network dimensions with air interface and associated potential technologies. More specifically, we highlight the use cases and applications of the proposed 6G networks in various dimensions. Furthermore, we also discuss the key performance indicators (KPI) for the B5G/6G network, challenges, and future research opportunities in this domain.