okumura model
Applicable to 1-100km and 150-1500MHz. Comes from empirical model in Tokyo.
\begin{equation}
P_l = L(f_c, d) + A_{mu}(f_c, d) - G(h_t) - G(h_r) - G_{AREA}
\end{equation}
where
- Pl is the path loss
- L is free space path loss
- Amu is median attenuation
- Gx is the gain factor