A randomized space-time coded stacked intelligent metasurface uses partial CSIT and limited feedback to achieve competitive sum rates with much lower channel acquisition overhead than conventional designs.
Physically consistent modeling of stacked intelligent metasurfaces implemented with beyond diagonal RIS
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Randomized Space-Time Stacked Intelligent Metasurfaces for Massive Multiuser Downlink Connectivity
A randomized space-time coded stacked intelligent metasurface uses partial CSIT and limited feedback to achieve competitive sum rates with much lower channel acquisition overhead than conventional designs.