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Table 5 Computational cost comparison between joint TS and CE methods

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) \(N_{R}L \left (\left (N_{T}+1\right)Z_{D} -1+2\log _{2}L+\frac {N_{T}-1}{L}\right)\) \(N_{R}L \left (\left (N_{T}+1\right)Z_{D} +\log _{2}L+1\right) \)