A three-stage GNN jointly optimizes PA placement, RIS phases, beamforming and associations to maximize sum rate and energy efficiency in multi-BS multi-RIS pinching-antenna systems.
Intelligent reflecting surface-aided wireless communications: A tutorial
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Proposes SEMRA system integrating spatial and EM antenna reconfiguration for tri-domain precoding optimization and a movement-aided CE scheme that improves eCSI accuracy under fixed pilot overhead in multiuser OFDM.
citing papers explorer
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Spectral- and Energy-efficient Multi-BS Multi-RIS Pinching-antenna Systems: A GNN-based Approach
A three-stage GNN jointly optimizes PA placement, RIS phases, beamforming and associations to maximize sum rate and energy efficiency in multi-BS multi-RIS pinching-antenna systems.
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Tri-Domain Multiuser MIMO Precoding Optimization and Channel Estimation with Spatial-EM Reconfigurable Antenna
Proposes SEMRA system integrating spatial and EM antenna reconfiguration for tri-domain precoding optimization and a movement-aided CE scheme that improves eCSI accuracy under fixed pilot overhead in multiuser OFDM.