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Table 1 Complexity analysis of the EM estimator

From: Superimposed signaling inspired channel estimation in full-duplex systems

EM—complexity per iteration
(Eq. no.) Additions Multiplications
(12) 3M+2 6M+6
(11) NM(3M+4) NM(6M+9)+5
(13) 4NM(3M+2)+3N+14 4NM(6M+8)+3N+33
\(\hat {h}_{ba}\) 15NM2+12NM+3N+3M+16 30NM2+41NM+3N+6M+44