From: Joint beamforming and power allocation for wireless powered UAV-assisted cooperative NOMA systems
Parameter | Value |
---|---|
System bandwidth | 1M |
Maximum transmit power at BS (Ps) | 20 dBm |
Noise power \(\left ({\sigma _{r}^{2} = \sigma _{1}^{2} = \sigma _{2}^{2}} \right) \left ({{P_{0}}}\right)\) | − 70 dBm |
The number of transmit antenna at BS and UAV (M,N) | M=N=4 |
SI suppress level (ρ) | −50 dB |
Tolerant error (ε) | 10−6 |
Energy conversion efficiency (η) | 0.8 |
Minimum data rate at U1 and U2 \(\left ({\bar R}\right)\) | 1 Mbits |
Azimuth angle (θ) | 45∘ |
The altitude of UAV (h) | 30m |
Circle radius of UAV’s fight (r) | 40m |