Table 1 Simulation parameters

From: Exploiting tethered and untethered UAVs: a hybrid aerial communication system

Parameter

Symbol

Value

SINR thresholds

\(\gamma\)

1

Cluster radius

\(R_{0}\)

400m

Density of buildings

\(\lambda _b\)

\(750/Km^2\)

TBS density

\(\lambda _{T}\)

\(1.5/Km^2\)

The cluster center density

\(\lambda _C\)

\(1/Km^2\)

ABS transmit power

\(\rho _{\textrm{A}}\)

1W

TBS transmit power

\(\rho _{\textrm{T}}\)

10W

Noise power

\(\sigma ^2\)

\(10^{-12}W\)

ABS altitude

h

100m

U-UAV availability

A

0.8

LoS, NLoS, TBS attenuation coefficients

\(\eta _{\textrm{L}},\eta _{\textrm{N}},\eta _{\textrm{T}}\)

0.4, 0.005, 0.1

LoS, NLoS, TBS pathloss exponents

\(\alpha _{\textrm{L}}\), \(\alpha _{\textrm{N}}\), \(\alpha _{\textrm{T}}\)

2, 3, 3

LoS, NLoS, TBS Nakagami-m fading terms

\(m_{\textrm{L}}\), \(m_{\textrm{N}}\), \(m_{\textrm{T}}\)

2, 1, 1