Capacity Estimation for a MIMO Communication Channel in Presence of Noise Complex

The article is devoted to analysis of the MIMO communication channel capacity with various channel testing methods, taking into account an influence of low-frequency noise. Mutual arrangement of antenna system elements in space is considered, and mutual influence of the elements is evaluated. Results of capacity analysis at different distances between elements of antenna system and signal-to-noise ratio of signal at the input of receiving device are presented. A description of phase, thermal and flicker noises complex using correlation matrices is given. A fractal Brownian motion model is used to describe low-frequency noise. Evaluation of noise dispersion effect on the result of estimating channel coefficients and capacity of communication system was performed.