Estudo do Massive MIMO em sistemas 5G.

Abstract

Due to the increased demand for mobile communication networks, with more and more connected devices and the need for faster and more efficient services, there is the development of the fifth generation of these communication systems (5G). In order to meet the operating parameters of the new generation, the MIMO systems of multiple antennas, more precisely the Massive MIMO, appears as one of the most promising techniques. Massive MIMO refers to systems in which the base station is equipped with a very large number of antennas, providing increases in energy and spectral efficiencies. The present work aims to describe the Massive MIMO, highlighting its main advantages, its operation in relation to channel estimation and pre-coding and decoding, in addition to listing important problems related to pilot contamination and antenna arrays. In addition, an overview is made of future research on the subject. From it, it is concluded that the advantages brought by the use of Massive MIMO make this technology one of the pillars for the operation and implementation of 5G. It was also realized that there is still a lot to be researched in this area.