From: Low computational complexity methods for decoding of STBC in the uplink of a massive MIMO system
Number of users (M) | 8 | 16 | 24 | 32 |
---|---|---|---|---|
Direct inverse | 106565 | 350005 | 861392 | 1771797 |
Proposed update | 68416 | 189920 | 364672 | 592672 |
Complexity reduction (updating) | 36% | 46% | 58% | 67% |
Inverse approximation R = 3 | 45056 | 98304 | 159744 | 229376 |
Complexity reduction (approximation) | 57% | 71% | 81% | 87% |