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SIM-Empowered Architecture: A Wave-Domain Framework Enabling Sustainable and Inclusive ISAC-Centric 6G Transceivers

Project description

Replacing power-hungry electronics with smart metasurfaces for more efficient wireless networks

Beyond data rate, energy consumption represents a major challenge for future 6G wireless networks. Conventional transceivers rely on numerous power-hungry electronic components for signal processing, limiting their energy efficiency and scalability. Supported by the Marie Skłodowska-Curie Actions programme, the SIMPACT-6G project explores shifting part of the signal processing from the digital domain to the electromagnetic wave domain. The idea involves vertically stacking intelligent metasurface layers within the transceiver front-end, enabling the system to process wireless signals directly as they propagate through the electromagnetic environment. This wave-domain processing approach could enable parallel communication, localisation and sensing functions while substantially reducing reliance on conventional electronic processing, contributing to more energy-efficient and sustainable 6G networks.

Objective

The emergence of sixth-generation (6G) networks demands transceiver architectures that jointly enable communication, localization, and sensing while supporting societal goals of sustainability and inclusiveness. Conventional digital and hybrid multiple-input multiple-output (MIMO) approaches rely on numerous RF chains and power-hungry components, making them costly, energy-inefficient, and difficult to scale for large-array deployments. Stacked intelligent metasurfaces (SIMs), formed by vertically stacking multiple reconfigurable intelligent surface (RIS) layers within the transceiver front-end, offer a compelling alternative by shifting signal processing from the baseband to the wave domain, enabling parallel operations at the speed of light. Yet their potential in integrated sensing and communication (ISAC) systems remains largely unexplored. The SIMPACT-6G project addresses this gap through three work packages: (i) developing physically consistent models that capture electromagnetic interactions in SIM-based ISAC transceivers, (ii) designing a unified wave-domain framework for parallel signal processing, and (iii) validating performance in the FR3 band (7–24 GHz) under emerging 6G scenarios, in line with societal objectives. These advances will deliver scalable, energy-efficient ISAC transceivers, strengthen Europe’s leadership and strategic autonomy in 6G, accelerate standardization efforts, and enable affordable deployments in underserved regions, thereby advancing digital inclusion and supporting the EU’s Green Deal and Digital Decade objectives.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2025-PF

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Coordinator

CHALMERS TEKNISKA HOGSKOLA AKTIEBOLAG
Net EU contribution
€ 252 180,00
Address
-
412 96 Goteborg
Sweden
Region
Södra Sverige Västsverige Västra Götalands län
Activity type
Higher or Secondary Education Establishments
Links
Total cost
No data