From: Joint timing synchronization and channel estimation based on ZCZ sequence set in SC-MIMO-FDE system

Complex addition | Complex multiplication | |
---|---|---|

Twice section-maximum algorithm | \(N_{R} \left (\left (N_{T}-1\right)N_{X} + N_{T}L\left (\frac {L_{a}-1}{N_{T}}+N\left (N_{T}-1\right)\right)\right)\) | 0 |

Wang’s method [33] (radix-2 FFT) | \(N_{R}L \left (\left (N_{T}+1\right)Z_{D} -1+2\log _{2}L+\frac {N_{T}-1}{L}\right)\) | \(N_{R}L \left (\left (N_{T}+1\right)Z_{D} +\log _{2}L+1\right) \) |