A wise tradeoff between parameters for minimizing correlations and for designing MIMO systems

We define a common and global parameter in terms of the amount of correlation for the entire multiple-input multiple-output antenna (MIMO) channels models. This is possible if the MIMO systems (with different number of antennas) are surrounded by the same distribution of scatterers. We demonstrate also by simulation results the wise tradeoff which can be done between antennas parameters and the one-ring scattering model parameters in order to significantly decrease the amount of correlation. As application, the performances analysis of few MIMO systems associated with the orthogonal space-time block code (OSTBC) spreading over the one-ring scattering channel, are computed and they are shown to be close to those of uncorrelated channel.