Table 1 Complexity in numbers of operations for MMSE and MMSE-SA.
From: Performance-Driven Symbol Mapping for Downlink and Point-to-Point MIMO Systems
MMSE | No. of operations | MMSE-SA | No. of operations | ||
|---|---|---|---|---|---|
(1) | construct |
| (1) | construct |
|
(2) | invert |
| (2) | invert |
|
(3) | multiply |
| (3) | multiply |
|
(4) | multiply with |
| (4) | multiply with |
|
(5) | calculate scaling factor |
| (5) | calculate scaling factor |
|
| Â | Â | Â | (6) | choose optimum |
|
Total |
| Total |
| ||
with 
with 
