Stacked Intelligent Metasurface-Assisted Fluid Antenna Systems: Outage Probability

Fuente: arXiv
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Main Author: Papazafeiropoulos, Anastasios
Format: Preprint
Published: 2026
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author Papazafeiropoulos, Anastasios
author_facet Papazafeiropoulos, Anastasios
contents Stacked intelligent metasurfaces (SIMs) and fluid antenna systems (FAS) are emerging technologies for wave-domain and spatial signal manipulation, respectively.This letter proposes a novel joint SIM-FAS communication model in which transmission and reception are performed by a SIM and an FAS, respectively. Using the block-diagonal matrix approximation (BDMA), a closed-form expression for the outage probability is derived, and the SIM phase shifts are optimized to minimize outage. Numerical results validate the analytical accuracy and demonstrate substantial performance gains over conventional benchmark schemes.
format Preprint
id arxiv_https___arxiv_org_abs_2605_22053
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Stacked Intelligent Metasurface-Assisted Fluid Antenna Systems: Outage Probability
Papazafeiropoulos, Anastasios
Information Theory
Stacked intelligent metasurfaces (SIMs) and fluid antenna systems (FAS) are emerging technologies for wave-domain and spatial signal manipulation, respectively.This letter proposes a novel joint SIM-FAS communication model in which transmission and reception are performed by a SIM and an FAS, respectively. Using the block-diagonal matrix approximation (BDMA), a closed-form expression for the outage probability is derived, and the SIM phase shifts are optimized to minimize outage. Numerical results validate the analytical accuracy and demonstrate substantial performance gains over conventional benchmark schemes.
title Stacked Intelligent Metasurface-Assisted Fluid Antenna Systems: Outage Probability
topic Information Theory
url https://arxiv.org/abs/2605.22053