A correlated indoor MIMO channel model

For assessing communication technology that uses multielement antenna system for a fading indoor environment it is necessary to have an accurate tractable description of indoor wireless channel. A general correlated representation based on indoor wave propagation is proposed here to model the flat Rayleigh fading indoor MIMO channel. The proposed two-ring model takes account into most key features of the scattering environment, such as configuration and characters of antenna array, angle of arrival (AOA) at receiver and angle of departure (AOD) at transmitter, root-mean-square (RMS) delay spread of specific environment. In addition, we include the nonisotropic scattering environment. In order to quantify effects of fading due to scattering, we investigate the information-theoretic channel capacity. The model combines the accuracy of full-wave propagation analysis with efficiency of a statistical description of multipath. It is represented in close form, which provides a powerful framework for analysis and simulation of multiple antennas coupled with space-time processing algorithms for indoor wireless applications.