From: Orthogonal beamforming using Gram-Schmidt orthogonalization for multi-user MIMO downlink system
 | LF-OSDMA | Extended LF-OSDMA | Proposed method |
---|---|---|---|
Step2 or Step II | K(log2 N t M +QSINR) | K(log2 N t M +QSINR) | SQ CSI |
Step 5 or Step V | Â | K(log2 N t +QSINR) | (K 1)(log2 N t +QSINR) |