HAL (France)
open access
Spectral–Energy Efficiency Tradeoff of Nearly-Passive RIS in MIMO URLLC Downlink: Diagonal Versus Beyond Diagonal
This letter investigates the spectral and energy efficiency (EE) tradeoff of nearly-passive (NP) reconfigurable intelligent surfaces (RIS). Locally and globally NP (GNP) RIS are analyzed, considering diagonal and beyond-diagonal (BD) implementations in multi-user multiple-input multiple-output (MU-M
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