Table 1 Numerical values of simulation parameters

Gauss white noise power σ ²

−80 dbW

Fading value H ₁

Rayleigh fading (∼Exp (1))

Fading value H ₂

Rayleigh fading (∼Exp (1))

800 MHz path loss constant C ₁

\(\left (\frac {0.375}{4\pi }\right)^{2}\)

800 MHz path loss constant C ₂

\(\left (\frac {0.375}{4\pi }\right)^{2}\)

800 MHz path loss exp. α ₁

3

800 MHz path loss exp. α ₂

3

2.5 GHz path loss constant C ₁

\(\left (\frac {0.12}{4\pi }\right)^{2}\)

2.5 GHz path loss constant C ₂

\(\left (\frac {0.12}{4\pi }\right)^{2}\)

2.5 GHz path loss exp. α ₁

4

2.5 GHz path loss exp. α ₂

4

Variable comparison parameter M ₀

10

Femtocell 1 capacity requirements Th₁

200 Mbit/s

Femtocell 2 capacity requirements Th₂

500 Mbit/s

Femtocell 1 user distribution density ρ ₁

100/km²

Femtocell 2 user distribution density ρ ₂

100/km²,200/km²

Femtocell 1 maximal power P _LT1

1 W

Femtocell 2 maximal power P _LT2

2 W

Femtocell 1 interference gain h _1p

Rayleigh fading (∼Exp (1))

Femtocell 2 interference gain h _2p

Rayleigh fading (∼Exp (1))

Licensed network interference constraint I _p

10 W

Femtocell 1 and Femtocell 2 distance D

1 km