Table 1 Simulation parameters

Frequency, f

3.35 GHz, 60 GHz

Tx antenna height, h_Tx

1 m

Rx antenna height, h_Rx

1 m

Average human body radius, R

0.18 m

Average human body height, H

1.80 m

Average number of crossing, $\hat{N}$

3

Average walking speed, v

1 m/s

Human body relative permittivity at 3.35 GHz, η

50-j100 [19]

Human body relative permittivity at 60 GHz, η

11-j4.5 [20]

Relative permittivity of the floor, ceiling and wall at 3.35 GHz, η

5.31-j0.47 [8]

Relative permittivity of the floor, ceiling and wall at 60 GHz, η

5.31-j0.27 [8]