Multi-UAV-Assisted MEC Offloading-Optimization Method on Deep Reinforcement Learning

Chao Sun and Zhihua Li
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Chao Sun: Jiangnan University, China
Zhihua Li: Jiangnan University, China

International Journal on Semantic Web and Information Systems (IJSWIS), 2025, vol. 21, issue 1, 1-31

Abstract: In multi-UAV-assisted mobile edge computing (MEC), insufficient consideration of collaborative computation in inter-UAV communication can significantly reduce computational service capabilities. For this problem, we present a multi-UAV-assisted MEC offloading optimization model that jointly optimizes task offloading decision, UAV resource allocation, UAV trajectories and establish collaborative computation through inter-UAV communication. First, to solve the multi-UAV-assisted MEC offloading optimization issue, we define a weighted utility function that balances delay and energy consumption. Then, to tackle the continuous nature of the computation-offloading problem and the coexistence of discrete and continuous variables, the PPO algorithm is enhanced by integrating an average reward objective function and a hybrid action generation offloading mechanism. Finally, we propose a multi-UAV-assisted MEC computing offloading optimization method to improve the utility function. Experiments show that the proposed method significantly enhances system utility.

Date: 2025
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