Codebook-based precoding for generalized spatial modulation with diversity

EURASIP Journal on Wireless Communications and Networking

Table 3 Complexity comparison for N_r = 4, B = 64, and QPSK. For GSM, N_t = 5, N_a = 2. For SM, N_t = 8, N_a = 1

Scheme	Complexity
GSM-CP, fixed TAC-set	71,680
GSM-FP, fixed TAC-set	79,872
GSM-CP, adaptive TAC-set	110,080
GSM-FP, adaptive TAC-set	120,320
SM codebook precoding	71,680
Precoder optimization method [13] (Table 1 of [13])	276,224