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FlexEdge: Digital Twin-Enabled Task Offloading for UAV-Aided Vehicular Edge Computing
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DOI：10.1109/TVT.2023.3262261.png)
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Integrating unmanned aerial vehicles (UAVs) into vehicular networks have shown high potentials in affording intensive computing tasks. In this paper, we study the digital twin driven vehicular edge computing networks for adaptively computing resource management where an unmanned aerial vehicle (UAV) named FlexEdge acts as a flying server. In particular, we first formulate an energy consumption minimization problem by jointly optimizing UAV trajectory and computation resource under the practical constraints. To address such a challenging problem, we then build the computation offloading process as a Markov decision process and propose a deep reinforcement learning-based proximal policy optimization algorithm to dynamically learn the computation offloading strategy and trajectory design policy. Numerical results indicate that our proposed algorithm can achieve quick convergence rate and significantly reduce the system energy consumption.
Keyword:
Digital twin
vehicular edge computing
UAV
proximal policy optimization
期刊
IF:
7.1
论文数:
1.8W
被引数:
6.6W
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