Simulación del efecto de contaminación piloto para MIMO Masivo

Abstract

Wireless networks have given way to a new evolution of more efficient cellular network infrastructures, implementing 5G technology through MASSIVE MIMO, incorporating antenna arrays with a smaller space dimensioning compared to large structures present today, in order to provide services of data to a greater number of devices connected to a base station prior to estimating the communication channel by means of pilot signals. An increase in the number of antennas brings with it one of the biggest problems known as pilot contamination caused by interference between the priority signals within the main cell and that of a neighboring cell. There are varieties of techniques that are applied to eliminate this problem, however, the results obtained place the M-MMSE scheme as the most optimal estimator compared to other interference detectors, since it analyzes the behavior of the spectral efficiency and the effect to minimize the interference caused by pilot contamination in adjacent cells considered a correlated fading.