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- W4285326917 abstract "In this paper, we employ multiple UAVs coordinated by a cellular base station (BS) to help the IoT users to offload their sensing data to the BS. To minimize the overall energy consumption and transmission delay, we allow different UAVs to optimize their trajectories and cooperate in data transmission via multi-hop relaying. This implies complicated spatial and temporal coupling between the UAVs' trajectories optimization and network formation. To solve this problem, we propose a two-step algorithm to iterate between adaptive network formation and trajectory optimization. Firstly, in order to balance the UAVs' energy consumption and the queue size, we adopt a heuristic algorithm to update adaptive network formation. Then, once we update the network formation, the UAVs' trajectories are further optimized by using the multi-agent deep reinforcement learning algorithm. Our simulation results show that the joint trajectory optimization and network formation can better exploit the cooperation among multiple UAVs in data offloading, compared with the conventional non-cooperative cases." @default.
- W4285326917 created "2022-07-14" @default.
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- W4285326917 date "2021-12-01" @default.
- W4285326917 modified "2023-09-25" @default.
- W4285326917 title "Adaptive Network Formation and Trajectory Optimization for Multi-UAV-Assisted Wireless Data Offloading" @default.
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- W4285326917 doi "https://doi.org/10.1109/hpcc-dss-smartcity-dependsys53884.2021.00153" @default.
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