Table 3 Simulation parameter settings
Value | |
|---|---|
System parameter | |
Satellite type | GEO |
FSO channel bandwidth | \({B_F} = 1280\) MHz |
FSO channel wavelength | \({\lambda _F} = 1550\) nm |
Carrier frequency band of RF links | 2 GHz |
RF channel bandwidth | \({B_R} = 1\) MHz |
Maximum height of UAV | \(z{\left[ n \right] _{\max }} = 5000\) m |
IoT devices area | \(1000\,\mathrm{{ m }} \times 1000\,\mathrm{{ m}}\) |
DNN parameter | |
Number of time slots | 100 |
Reward discount rate | 0.99 |
Number of episodes | 10,000 |
Number of training rounds per step | 2000 |
Number of steps per episode | 40,000 |
Number of experiences in a minibatch | 64 |