AISC deployment in dynamic UAV-assisted MEC network: a reinforcement learning method based on heterogeneous graph attention neural network
This study addresses the challenge of deploying AI service chains (AISCs) in dynamic unmanned aerial vehicle–assisted mobile edge computing (UMEC) networks, where high topological dynamics, complex interdependencies among virtual network functions (VNFs), and trade-offs between energy consumption and load balancing hinder minimization of service completion time. To tackle this, the work proposes a dual deep attention Q-network method that integrates heterogeneous graph attention into a deep reinforcement learning framework. By modeling heterogeneous nodes and links in the drone network and leveraging attention mechanisms to adaptively focus on critical resources, the approach enables end-to-end optimized AISC deployment. Experimental results demonstrate that the proposed method significantly outperforms existing baselines in terms of service completion time, success rate, load balancing, and energy efficiency.