Method for Estimating Data Rate in MIMO Channels of Wi-Fi Communication Networks

In this article the method for estimating the channel data rate when using several spatial streams in MIMO channels of Wi-Fi network was developed. This method is based on calculating the signal-to-interference ratio, taking into account the effect of intra-system interference arising in the presence of deviations in the communication channel matrix values, for each subcarrier in each spatial stream for a different number of them. With its use, a comparative efficiency assessment of two methods for ensuring the spatial streams orthogonality is carried out. First method based on using singular value decomposition. The second based on sequential inversion of the channel matrix using the Gauss - Jordan method.