Table 2 Simulation input parameters

Area = 1.0 × 1.0 km²

Number of PAs = 3

Number of SNs = 35

Number of scenarios = 25000

σ _x (p) ~ σ _y (p) · U [1,4], ∀p ∈ S _P

σ _y (p) ~ U [6,18],∀p ∈ S _P

Ω_UC (p) ∈ [0.0, 0.2,..., 5.0], ∀p ∈ S _P

Radio propagation:

α = 2.1

σ _C = 0.2

d₀ = 1.0 m

P_MNZ = 10^-15 W

Coexistence requirements

Primary network

I_A,UM(1) = -10^-6 W, η_UM (1) = 0.02

I_A,UM(2) = -5 × 10^-6 W, η_UM (2) = 0.008

I_A,UM(3) = -10^-5 W, η_UM (3) = 0.001

Secondary network

I_A,OM= 5 × 10^-5 W, η_OM = 0.15

CSRRT algorithm

N _R = 5 × 10^-15 W

γ_SINR = 13 dB

ξ = 1.25

θ(i)= θ (j) = 60°

G _T (i) = 2π/θ (i), g _R (j) = 2π/θ (j)