Table 1 Computational complexity comparision per subblock for EM, ML, LCML, and SW detectors
From: A novel detector based on EM algorithm for multiple-mode OFDM with index modulation
Detector | Complexity |
|---|---|
EM | \( \mathcal {O}({\bar i}nM n!) \) |
ML | \( \mathcal {O}(n!M^{n}) \) |
LCML | \( \mathcal {O}(Mn^{2} + n!) \) |
SW | \( \mathcal {O}(Mn^{2}/2 + Mn/2) \) |