Paper Image

Double-layer metasurfaces for multi-user mMIMO performance gains

Paper Authors:

Anastasios Papazafeiropoulos,

Pandelis Kourtessis,

Symeon Chatzinotas


Key Details

Proposes double-SIM architecture for multi-user mMIMO gains

Derives spectral efficiency analysis with statistical CSI

Performs single-phase channel estimation

Optimizes both SIMs' phase shifts simultaneously

Shows performance gains over baseline methods

AI generated summary

Double-layer metasurfaces for multi-user mMIMO performance gains

This paper proposes a novel architecture using two stacked intelligent metasurfaces (SIMs) to enhance multi-user massive MIMO performance. One SIM at the base station enables wave-domain decoding, while another SIM in the propagation environment further shapes signals. A channel estimation method and analysis of sum spectral efficiency are provided. Notably, an algorithm optimizes both SIMs' phase shifts simultaneously, outperforming alternating optimization.

Answers from this paper


No comments yet, be the first to start the conversation...

Sign up to comment on this paper

Sign Up