Research Article

Fuzzy Logic Based Coverage and Cost Effective Placement of Serving Nodes for 4G and Beyond Cellular Networks

Table 5

Simulation settings.

Serving node (eNB/RS) settings

Carrier frequency (GHz)2.14 [29]

System bandwidth (MHz)Macro eNB: 100
Micro eNB: 100
Pico eNB: 30
RS: 50

PC (units)Macro eNB: 32
Micro eNB: 3.5
Pico eNB: 1
RS: 4.5

Total power allocated to serving nodes (W)Macro eNB: 40
Micro eNB: 2
Pico eNB: 0.25
RS: 4

Coverage radius (km)Macro eNB: 3
Micro eNB: 1
Pico eNB: 0.25
RS: 1.125

Traffic modelFull buffer [30]

Interference threshold or OI (%)<25%

Network layout parameters

ScenarioLarge group

Size of the geographic area20 km × 20 km

Network nodesmacro eNB, micro eNB, pico eNB, RS, and UE

Number of macro eNB candidate sites16

Number of RS candidate sites18

Number of pico eNB candidate sites100

Channel parameters

Path loss modelLog-distance path loss model [4]

Small scale fading typeslow fading

Fading modelJakes Rayleigh [31]

Shadowing modelLog normal shadowing [4]

Shadowing factor (dB)macro eNB: 10 dB
micro eNB: 6 dB
pico eNB: 6 dB
RS: 6 dB

Additive white Gaussian noise (AWGN) power (dBm/Hz) [4]

UE settings

UE density600 to 1000

Spatial distributionNonhomogeneous Poisson and uniform process [1]

Velocity of UE (kmph)≤5

Noise figure (dB)9

Downlink traffic demand (Mbps)0.1 to 1 Mbps

Other parameters

Expected bit error rate

SNR gap

Target SCI

TPB200 units