Figure 6From: On the user performance of orthogonal projection signal alignment scheme in MIMO relay systemseOP-SI vs OP-SI on ergodic sum rate with and without channel estimation error. Figure6 provides the ergodic sum rate for the eOP-SI scheme. The number of users is set as 2, and the number of relay antennas is 4. Compared with the OP-SI scheme, the eOP-SI scheme can always achieve higher ergodic capacity.Back to article page