Here a sample code is attached for Multiuser MIMO (MU-MIMO) system. Block Diagonalization technique is used to create null space for precoding which in-turn transmit null signal in unwanted user direction. SVD is applied on channel matrix h to find the precoding vectors. However, at the wanted user/receiver, the effect of not only channel, but also precoding alteration is also overcome by channel estimation (here, channel state information (CSI) is assumed to be known to receiver) and Zerfo-Forcing (ZF) receiver. A very sample model is attached hereby showing both the BD-ZF for MU-MIMO.