Survey on Massive MIMO: Technology, Challenges, Opportunities and Benefits

Abstract

Wireless communication technologies have been studied and explored in response to the global shortage of bandwidth in the field of wireless access. Next-generation networks will be enabled by massive MIMO. Using relatively simple processing, it provides high spectral and energy efficiency by combining antennas at the receiver and transmitter. This paper discusses enabling technologies, benefits, and opportunities associated with massive MIMO, and all the fundamental challenges. Global enterprises, research institutions, and universities have focused on researching the 5G mobile communication network. Massive MIMO technologies will utilize simpler and linear algorithms for beam forming and decoding. As part of future 5G, massive MIMO technology will be used to increase the efficiency of spectrum utilization and channel capacity. The paper then summarizes the technologies that are used in massive MIMO system, including channel estimation, pre-coding, and signal detection.

Study and Analysis of Orthogonal Frequency Division Multiplexing

“…By using AWGN Channel block, the AWGN channel block adds white Gaussian noise to complex signals or real signals. As the result of summing together real Gaussian noises, a real output signal is produced [15]. The block generates a complex output signal from a complex input signal by summing complex Gaussian noise.…”