Optimal Low-Power Design of a Multicell Multiuser Massive MIMO System at 3.7 GHz for 5G Wireless Networks

Table 5

Scaling exponents for digital subcomponents.

Subcomponent	BW	S.E.	Ant.	Load	Streaming	Q
Filtering	1	0	1	0	0	1.2
Up/Downsampling	1	0	1	0	0	1.2
FFT/IFFT	1.2	0	1	0	0	1.2
MIMO precoding	1	0	1	1	1	1.2
Synchronization	0	0	1	0	0	1.2
Channel estimation	1	0	1	0.5	1	1.2
OFDM Mod/Demod	1	0	1	0.5	0	1.2
Mapping/Demapping	1	1.5	0	1	1	1.2
Channel coding	1	1	0	1	1	1.2
Control	0	0	0.5	0	0.2	0.2
Network	1	1	0	1	0	0