China Communications
Joint Handover and Routing Optimization via Heterogeneous GNN-Enhanced DRL for Satellite-Ground Integrated Networks
Jiang Jiayi, Deng Xiaofei, Wang Denghao, Zhang Xiaoning
China Communications . 2026, (4): 196 -213 .  DOI: 10.23919/JCC.fa.2025-0242.202604