Análisis experimental del canal MIMO masivo en un entorno de oficina en ondas milimétricas

Abstract

[EN] Massive multiple-input multiple-output (MIMO) is considered an enabling technology to achieve large capacities in multi-user scenarios in the upcoming mobile networks (5G and beyond). In this paper, the performance of the massive MIMO concept is investigated from measurement data at millimeter wave (mmWave) frequencies. The measurements were collected in an indoor office environment from 25 to 40 GHz in the frequency domain, using a virtual uniform rectangular array (URA) at the base station consisting of 144 (12×12) antennas. Line-of-Sight (LOS) and Obstructed-LOS (OLOS) propagation conditions have been considered. Both the favorable propagation condition and the achievable capacity are analysed in terms of active users and number of antennas placed at the base station. The results are particularised at the 26, 28 and 38 GHz bands adopted for the deployment of future wireless communication networks.