IMPLEMENTATION OF SMALL CELL ANTENNA BASED MASSIVE MIMO SYSTEM FOR HIGH SPECTRUM AND ENERGY EFFICIENCIES
Abstract
Massive Multiple Input Multiple Output (M-MIMO) systems are widely used to improve spectral efficiency, and it is essential for achieving higher data rate in the fifth generation (5G) communications. The small cell antennas (SCA) are crucial for the success of such arrangements. Spectrum efficiency in M-MIMO networks is far higher than in traditional networks, where several user terminals (UTs) must share a single frequency band and are subject to severe levels of inter-user interference. To accomplish this goal, the base station typically uses hundreds of antenna components. Enhanced data rates, decreased energy consumption, and decreased latency are all necessary for the introduction of 5G, and these goals have been accomplished with the advancement of SC technology. This study use SCAs to construct a M-MIMO system that can function with just partial knowledge of the channel state. To accomplish DR at the limited rate, we use time-division-duplex to repeatedly send pilot sequences. As a result, we'll be able to achieve our goals (TDD). Cellular network energy efficiency may be enhanced by utilizing massive MIMO at the base stations (BS) or by layering SCAs over existing infrastructure. We provide encouraging findings demonstrating that combining M-MIMO and tiny cells may significantly decrease overall power consumption. Most of the advantages may also be obtained using low-complexity Beamforming, such as the proposed multi flow regularized zero forcing (RZF) beamforming. According to the simulation results, Spectral Efficiency and Optimal Energy Efficiency are feasible with a given number of users and antennas used by SCAs.
Keywords
Rician fading channel, phase shift, Cell-free massive MIMO, performance analysis, small scale antennas.