Advances, Systems and Applications
Notion | Definition |
---|---|
\(d_{i}(t)\) | The number of arrived requests of IoT device j in time slot t |
\(D_{j}(t)\) | The total number of arrived requests of IoT devices \(A_j\) in time slot t |
\(D_{l,j}(t)\) | The number of tasks locally executed by IoT devices set \(A_j\) in time slot t |
\(D_{r,j}(t)\) | The number of tasks offloaded by IoT devices set \(A_j\) in time slot t |
\(D_{u,j}(t)\) | The number of tasks that executed the UAV j in time slot t |
\(S_{j}(t)\) | Queue backlog of IoT devices set \(A_j\) in time slot t |
\(M_{j}(t)\) | Queue backlog of UAV j in time slot t |
\(H_j(t)\) | The remaining battery capacity of UAV j in time slot t |
\(W_j(t)\) | The size of obtained energy of UAV j in time slot t |
\(E_H\) | The capacity of battery of UAV |
\(E_{safe}\) | the minimum battery energy level |
\(E_{u,j}\) | The energy consumption of UAV j in time slot t |
\(f_{l,i}(t)\) | The CPU-cycle frequency of the IoT device i in time slot t |
\(f_{max,i}\) | The maximum CPU-cycle frequency of the IoT device i |
\(L_i\) | The CPU cycles of IoT device i when executing 1 bit task in time slot t |
\(p_{l,i}(t)\) | The CPU power consumption of IoT device i in time slot t |
\(k_{mod,i}\) | The effective switched capacitance of the CPU of IoT device i |
\(r_{i,j}(t)\) | The transmission rate between the IoT device i and the UAV j in time slot t |
\(p_{r,i}(t)\) | The transmission power of the IoT device i in time slot t |
\(p_{max,i}\) | The maximum transmission power of IoT device i |
\(B_i\) | The channel bandwidth of IoT device i |
\(G_i\) | The channel power gain at a reference distance 1m of IoT device i |
\(d_{i,j}(t)\) | The distance between IoT device i and the UAV j in time slot t |