A coalition-formation-guided heterogeneous federated learning method, using QMIX reinforcement learning and transfer learning, is proposed and simulated for RIS-assisted cell-free MIMO channel estimation, reporting lower computation and better NMSE than baselines.
Reconfiguring wireless environments via intelligent surfaces for 6G: reflection, modulation, and security,
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Coalition Formation for Heterogeneous Federated Learning Enabled Channel Estimation in RIS-assisted Cell-free MIMO
A coalition-formation-guided heterogeneous federated learning method, using QMIX reinforcement learning and transfer learning, is proposed and simulated for RIS-assisted cell-free MIMO channel estimation, reporting lower computation and better NMSE than baselines.