Seybold Report ISSN: 1533-9211
Nivedita Gupta
Designation - M. Tech Student, Department - Electronics and Communication Engineering, VLSI, University - Dr. A.P.J Abdul Kalam Technical University
Email - niveditaguptakviiit@gmail.com
Dr. Kamal Prakash Pandey
Designation – Professor, Department - Electronics and Communication Engineering
University - Dr. A.P.J Abdul Kalam Technical University
Email - pandeykamal.1976@gmail.com
Vol 17, No 11 ( 2022 ) | Licensing: CC 4.0 | Pg no: 2434-2445 | Published on: 12-11-2022
Abstract
Future 5G systems will benefit from massive MIMO's ability to increase data throughput and spectral efficiency while supporting a huge user population. In addition, it supports 3D beamforming, which may increase the number of high-throughput users and give additional degrees of freedom. Compared to other alternatives, massive MIMO is predicted to provide better benefits in terms of energy and spectral efficiency. Increased capacity over a traditional antenna system means spectral efficiency up to 50 times that of current 4G technology is possible. “However, to fully use this technology and to overcome the problems of deployment in a real setting, a complex radio system is necessary.” Here, we provide a high-level summary of the foundational technologies needed to support 5G and 6G networks, focusing on massive MIMO. We cover the whole scope of the issues that might arise in a massive MIMO system, including pilot contamination, channel estimation, precoding, user scheduling, energy efficiency, and signal detection, as well as some of the most cutting-edge methods for dealing with them. “In this article, we provide an overview of current developments in massive MIMO systems, including terahertz communication, ultra-massive MIMO (UM-MIMO), visible light communication (VLC), machine learning, and deep learning.” To round off the article, we go through some of the most pressing unanswered questions that will shape the direction of future research in large MIMO systems for 5G and beyond networks.
Keywords:
“5G, 6G, beamforming, channel estimation, massive MIMO, millimeter waves, pilot contamination, signal detection, spectral efficiency, and terahertz spectrum”.