Table 5 Comparison of complexity order
Equalization algorithm | Complexity order | Number of complex operators |
|---|---|---|
Conventional method | \(\mathcal {O}(N^{3})\) | 1.07×109 |
Banded matrix | \(\mathcal {O}((N-q)q^{3})\) | 4.95×106 |
MMSE-BDFE | \(\mathcal {O}((8Q^{2}+22Q+4)N)\) | 8.2×104 |
Partial FFT | \(\mathcal {O}(NlogK)+\mathcal {O}(NM^{2})+\mathcal {O}(NMS)\) | 1.1×106 |
Proposed scheme | \(\mathcal {O}\left (\frac {7}{3}q^{3}N\right)\) | 1.1×107 |