Table 3 Simulation parameters for HAP multicasting environment
From: Optimizing radio resources for multicasting on high-altitude platforms
Parameter | Value |
|---|---|
Number of multicasting sessions (M) | 2 |
Number of antennas on board (S) | 7 |
Number of users in the service area (K) | 10 |
Number of available subchannels (C) | 3 |
Number of available time slots (T) | 2 |
HAP height | 20 km |
Degree of antenna beam footprint overlap | 105% |
HAP antenna footprint radius (rfootprint) | 500 m |
HAP antenna side lobe level | − 40 dB |
SINR threshold \(\left (\gamma ^{th}_{m,i}\right)\) | 35 |
Noise power spectral density (No) | − 173 dBm/Hz |
Maximum capacity requirements \(\left ({R^{max}_{m}}\right)\) | 20 Mbps |
Minimum capacity requirements \(\left ({R^{min}_{m}}\right)\) | 10 Mbps |
Carrier Frequency | 2.1 GHz |
Total HAP Power \(\left (P^{Total}_{PF}\right)\) | 1 Watt |
OFDMA frame length | 20 ms |
Total Bandwidth | 15 MHz |
Rice Factor (dB) | 20 dB |
Rain Attenuation Factor (χ) | 3 dB/Km |
Set of values for the user-over-session priority levels (ρm,k) | ρm,k∈{1,2,3,4,5} |
The binary constants indicating the admission request | |
of user k for session m (λm,k) | λm,k=1∀ m,k |
User antenna diameter \(\left (D^{Ant}_{user}\right)\) | 0.75 m |