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Table 1 Complexity of the schemes presented in this paper

From: Sparse code multiple access on the generalized frequency division multiplexing

Waveform

Equalizer

MUD

Complexity

OFDM

SPA

\(\mathcal {O}(\tau K J^{g})\)

GFDM

ZF

SPA

\(\mathcal {O}\left (N^{3} + \tau N J^{g}\right)\)

 

MMSE

SPA

\(\mathcal {O}\left (N^{3} + \tau N J^{g}\right)\)

 

BEP

SPA

\(\mathcal {O}\left (\phi (N^{3} + NJ) + \tau N J^{g}\right)\)

 

BEP

SMUD

\(\mathcal {O}\left (\phi (N^{3} + NJ) + UJ\right)\)