Open access
2026
Graph-Enhanced Critic Learning for Cooperative Spectrum Access in Multi-UAV Cognitive Radio Networks
A graph-enhanced centralized critic is proposed that injects topology-aware relational embeddings into value estimation while leaving decentralized actors unchanged, with centralized-training overhead and dense 16-secondary-user settings as practical limitations.
Changjing Sun, Zhenhua Wang, Yangzhi Li et al.
· IEEE Access · 0 citations