Advances, Systems and Applications
Table 1 Simulation Parameter Settings
Symbol | Definition | Value |
|---|---|---|
I | Number of UEs | 10 |
J | Number of UAVs | 4 |
F | Number of contents | 20 |
\(\triangle t\) | Length of a time slot | 0.1 s |
\(s_f\) | Size of each content | [0,30] Mb |
\(R_i^S\) | Data rate between UEs and satellite | [20,60] Kbps |
\(S_j\) | Storage capacity of each UAV | 20 G |
\(B_j\) | Bandwidth of each UAV | (0.1,2) GHz |
\(q_{i,x},~q_{i,y},~x_j(t),~y_j(t)\) | Horizontal area of UEs and UAVs | [-1000, 1000] m |
H | Flight height of UAV | 100 m |
\(xy_{max}\) | Max distance varifiaction bound | 25 m |
\(\beta _0\) | Channel power gain at 1 m | -50dB |
\(P_{i,j}^{LOS}(t)\) | Penetration loss | 20dB |
\(s^{fu}\) | Size of blockchain | 20 Mbit |
\(s^{li}\) | Size of blockchain head | 20 Kbit |
\(\eta _j\) | Price of UAV communication | \([1,20] \times 10^{-6}\) $/bps |
\(\eta ^S\) | Price of satellite communication | \(1 \times 10^{-9}\) $/bps |
L | Number of fireworks | 4 |
\(\hat{\chi }\) | Maximum number of explosion sparks | 6 |
a and b | Parameters | 0.2, 0.8 |
V | Parameter in Lyapunov Optimization | \(1*10^{10}\) |