Measurement and statistical analysis of indoor MIMO radio channel parameters

This paper addresses wireless MIMO channel sounding method, based on time domain cross correlation principle. Measurement were conducted in indoor laboratory environment at central frequency 2.3 GHz with measurement bandwidth 100 MHz, 4 transmit and 4 receive antennas are used. Obtained impulse responses are presented and used for channel parameters estimation. Full channel correlation matrix and its eigenvalue decomposition are calculated, showing significant spatial correlation. For statistical analysis maximum likelihood estimation of distribution of channel coefficients and goodness of fit tests are numerically computed. Correlated channel capacity compared with uncorrelated channel is presented.