From: Radio wave propagation in curved rectangular tunnels at 5.8 GHz for metro applications, simulations and measurements
Global
Zone 1
Zone 2
Rayleigh
KS
0.25
0.28
0.24
σ
3.50
3.48
Rice
K
0
Nakagami
0.08
0.09
m
0.40
0.38
ω
24.49
24.22
24.51
Weibull
0.03
0.04
k
3.65
3.53
3.66
l
1.09
1.05