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Energy-Efficient UAV-Driven Multi-Access Edge Computing: A Distributed Many-Agent Perspective
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AI
DOI：10.1109/TCOMM.2025.3552746.png)
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Abstract
En 中文
In this paper, the problem of energy-efficient uncrewed aerial vehicle (UAV)-assisted multi-access task offloading is investigated. In the studied system, several UAVs are deployed as edge servers to cooperatively aid task executions for several energy-limited computation-scarce terrestrial user equipments (UEs). An expected energy efficiency maximization problem is then formulated to jointly optimize UAV trajectories, UE local central processing unit (CPU) clock speeds, UAV-UE associations, time slot slicing, and UE offloading powers. This optimization is subject to practical constraints, including UAV mobility, local computing capabilities, mixed-integer UAV-UE pairing indicators, time slot division, UE transmit power, UAV computational capacities, and information causality. To tackle the multi-dimensional optimization problem under consideration, the duo-staggered perturbed actor-critic with modular networks (DSPAC-MN) solution in a multi-agent deep reinforcement learning (MADRL) setup, is proposed and tailored, after mapping the original problem into a stochastic (Markov) game. Time complexity and communication overhead are analyzed, while convergence performance is discussed. Compared to representative benchmarks, e.g., multi-agent deep deterministic policy gradient (MADDPG) and multi-agent twin-delayed DDPG (MATD3), the proposed DSPAC-MN is validated to be able to achieve the optimal performance of average energy efficiency, while ensuring 100% safe flights.
Keywords:
Autonomous aerial vehicles
Energy efficiency
Optimization
Trajectory
Servers
Resource management
Processor scheduling
Multi-access edge computing
Costs
Training
Multi-access edge computing (MEC)
uncrewed aerial vehicle (UAV)
multi-agent deep reinforcement learning (MADRL)
energy efficiency maximization
path planning
Journal
IF:
8.3
Papers:
1.2W
Citations:
3.6W
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