Table 1 Simulation parameters
From: Mobility robustness optimization in self-organizing LTE femtocell networks
Parameter | Value |
|---|---|
MBS number | 1 |
FBS number | 20 |
Femtocell layout | A modified dual strip model |
(five apartments in a row) | |
Macrocell radius | 577 m |
Femtocell radius | 6 m |
Carrier frequency | 2 GHz |
System bandwidth | 10 MHz |
Antenna gain | UE: 0 dBi, MBS: 15 dBi |
FBS: omni-direction 5 dBi [27] | |
Log-normal shadowing | Standard deviation FBS-UE 10 dB |
Standard deviation MBS-UE 8 dB [27] | |
MBS transmitting power | 46 dBm |
FBS transmitting power | 20 dBm |
UE mobility model | Random way-point model [26] |
MBS UE velocity | Uniform (0, 30) km/h |
FBS UE velocity | Uniform (0, 5.4) km/h |
UE distribution and | |
mobility range | indoor UE: |
within FBS coverage area | |
outdoor UE: | |
within in the MBS coverage area | |
Traffic model | indoor UE: Full queue traffic |
outdoor UE: voice traffic | |
Outdoor UE to MBS | PL(dB) = 15.3 + 37.6lgR, R in m [27] |
Indoor UE to MBS | PL(dB) = 15.3 + 37.6lgR + Low [27] |
UE to FBS (UE is inside the | |
same apt as FBS) | PL(dB) = 38.46 + 20lgR + q ∗Liw [27] |
Indoor UE to FBS (UE inside | |
a different apt as FBS) | PL(dB) = max(15.3 + 37.6lgR, |
38.46 + 20lgR) + q ∗Liw + p ∗Low [27] | |
Sampling time | 10 ms |
Minimum coupling losses | 70 dB |
Out of Sync threshold | -4.5 dB |
In Sync threshold | -2.1 dB |