Signal Detection Based on Parallel Group Detection Algorithm for High-Load Massive MIMO Systems

Table 1

Computational complexity comparison.

Detectors	Number of necessary flops to recover a transmitted signal vector
ZF
MMSE
QRD
BLAST
ZF-PGD
QRD-PGD
ZF-SLB
ZF-PGD-SLB
QRD-PGD-SLB

Note. ; , and are given by simulations.