Three correlation-aware port selection schemes (SF-EDAS, SOPS, CC-COAS) are introduced for SM in Tx-SIMO-FAS, with high-SNR analysis deriving diversity order from selected ports, receive antennas, and energy-based spatial DoF plus a Digamma-based array gain approximation.
Index modulation for fluid antenna-assisted MIMO communications: System design and performance analysis,
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Spatial Modulation for Tx-SIMO-FAS: Port Selection and Performance Analysis
Three correlation-aware port selection schemes (SF-EDAS, SOPS, CC-COAS) are introduced for SM in Tx-SIMO-FAS, with high-SNR analysis deriving diversity order from selected ports, receive antennas, and energy-based spatial DoF plus a Digamma-based array gain approximation.