In this paper, we find optimal multi-Unmanned Aerial Vehicle (UAV) placements with the low power consumption of UAV in an urban environment. To solve the NP-hard problem, we use non-hierarchical method. Performance analysis shows that average power consumption of UAV according to the number of UAVs and the relationship between power consumption and capacity fairness of UAV.
Acknowledgments. This research was supported by the MSIT (Ministry of Science and ICT), Korea, under the ITRC (Information Technology Research Center) support program (2018-0-01424) supervised by the IITP (Institute for Information & communications Technology Promotion).