Table 5 Simulation parameters
From: Load balancing mechanisms for indoor temporarily overloaded heterogeneous femtocell networks
Parameter | Configuration | |
|---|---|---|
Propagation model | Indoor-indoor | Winner II A1 |
Indoor-outdoor | Winner II A2 | |
Outdoor-outdoor | Winner II C2 | |
Outdoor-indoor | Winner II C4 | |
Base station model | EIRP | 3 (HeNB)/43 (macro) dBm |
Directivity | Omni (HeNB)/tri-sector (macro) | |
Access | Open (HeNB)/open (macro) | |
Mobile station model | Noise figure | 9 dB |
Noise density | −174 dBm/Hz | |
Traffic model | Calls | Poisson (avg. 0.43 calls/user · h) |
Duration | Exponential (avg. 100 s) | |
Mobility model | Outdoor | 3 km/h, random direction and wrap-around |
Indoor | Random waypoint | |
Service model | Voice over IP | 16 kbps |
Full buffer | ||
RRM model | Bandwidth | 1.4, 3, and 5 MHz (6, 15, and 25 PRBs) |
Access control | Directed retry (threshold = −44 dBm) | |
Cell reselection | Criteria S, R | |
Handover | Events A3, A5 | |
Scheduler | Voice: round-robin best channel | |
Full buffer: proportional fair | ||
Time resolution | 100 ms | |
Load balancing algorithm | Epoch time | 60 s |