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• W2957703721 abstract "Unmanned aerial vehicles (UAVs) may be used for providing seamless network coverage in urban areas for improving the performance of conventional cellular networks. Given the predominantly line-of-sight channel of drones, UAV-aided seamless coverage becomes particularly beneficial in case of emergency situations. However, a single UAV having a limited cruising capability is unable to provide seamless long-term coverage, multiple drones relying on sophisticated recharging and reshuffling schemes are necessary. In this context, both the positioning and the flight strategy directly affect the efficiency of the system. Hence, we first introduce a novel UAV energy consumption model, based on which an energy-efficiency-based objective function is derived. Second, we propose an energy-efficient rechargeable UAV deployment strategy optimized under a seamless coverage constraint. Explicitly, a two-stage joint optimization algorithm is conceived for solving both the optimal UAV deployment and the cyclic UAV recharging and reshuffling strategy. Our simulation results quantify the efficiency of our proposed algorithm." @default.
• W2957703721 created "2019-07-23" @default.
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• W2957703721 date "2019-09-01" @default.
• W2957703721 modified "2023-10-11" @default.
• W2957703721 title "A Near-Optimal UAV-Aided Radio Coverage Strategy for Dense Urban Areas" @default.
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• W2957703721 doi "https://doi.org/10.1109/tvt.2019.2927425" @default.
• W2957703721 hasPublicationYear "2019" @default.
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