MIMO Channel Modeling: Covariances Estimation Based on Multi Ring Scattering Environments

Modeling MIMO time-variant channels as real world of wave propagation environments dictates, becomes crucial in wireless communication where an accurate knowledge about the channel state information is expected to be available for the transceivers. However instead of having unreliable and inefficiency instantaneous channel state information (CSI) where the feedback mechanisms often generate a delay in receiving information and thus the loss in throughput, a partial information can be obtained by means of the channel covariance. In this paper we have instigated a new scheme of modeling MIMO channel in terms of multiple rings scattering environments and the covariance estimated is determined on the basis of experimental results leaded. The application is precisely made on the reliability of the link of the 2x2 MIMO multi ring scattering channel system and without any precoding systems which generally increase complexities in implementation, we provide its millimeter wave 60GHz channel´s impact on the performances of the orthogonal space-time block code (OSTBC) and V- BLAST signaling which are shown to be close to that of uncorrelated channel.