Fig. 1

System model of two-user MIMO MAC network. Mobile stations A and B have n i , i=A,B, transmitting antennas, respectively. The base station has n receiving antennas. The random channel gain matrix of each user is represented by H i
System model of two-user MIMO MAC network. Mobile stations A and B have n i , i=A,B, transmitting antennas, respectively. The base station has n receiving antennas. The random channel gain matrix of each user is represented by H i