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Smart city article details
| Title | Trajectory Design Of Laser-Powered Multi-Drone Enabled Data Collection System For Smart Cities |
|---|---|
| ID_Doc | 58718 |
| Authors | Du Y.; Wang K.; Yang K.; Zhang G. |
| Year | 2019 |
| Published | Proceedings - IEEE Global Communications Conference, GLOBECOM |
| DOI | http://dx.doi.org/10.1109/GLOBECOM38437.2019.9013552 |
| Abstract | This paper considers a multi-drone enabled data collection system for smart cities, where there are two kinds of drones, i.e., Low Altitude Platforms (LAPs) and a High Altitude Platform (HAP). In the proposed system, the LAPs perform data collection tasks for smart cities and the solar-powered HAP provides energy to the LAPs using wireless laser beams. We aim to minimize the total laser charging energy of the HAP, by jointly optimizing the LAPs' trajectory and the laser charging duration for each LAP, subject to the energy capacity constraints of the LAPs. This problem is formulated as a mixed-integer and non-convex Drones Traveling Problem (DTP), which is a combinatorial optimization problem and NP-hard. We propose an efficient and novel search algorithm named Drones Traveling Algorithm (DTA) to obtain a near-optimal solution. Simulation results show that DTA can deal with the large-scale DTP (i.e., more than 400 data collection points) efficiently. Moreover, the DTA only uses 5 iterations to obtain the near-optimal solution whereas the normal Genetic Algorithm needs nearly 10000 iterations and still fails to obtain an acceptable solution. |
| Author Keywords | Internet of Things; Low Altitude Platforms; Multiple Traveling Salesmen Problem; Smart Cities; Trajectory Optimization |
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