Analysis of Secret Key Randomness Exploiting the Radio Channel Variability

Table 3

Frequency channel characteristics for each BW.

BW (MHz)	Number of subcarriers	Number of data subcarriers	Subcarrier separation (MHz)
20	64	52	0.3125
40	128	108	0.3125
80	256	243	0.3125
160	512	468	0.3125