WAVE-XL - Wireless Advancement Via EXtra Large MIMO

As connectivity demands rise, traditional wireless networks face performance limits, driving the development of Extra-Large MIMO (XL-MIMO) and Holographic MIMO. These solutions expand multi-antenna apertures, improve transmission, and unlock transformative gains for future wireless systems.

This project explores the advanced capabilities of XL-MIMO, focusing on holographic architectures and practical implementation. We emphasize innovative signal and information processing to enable computationally efficient deployment of massive transceivers. Core technologies include EM wave processing, advanced multiple access, AI/ML integration, data compression, protocol learning, and over-the-air/coded computing. These will be investigated to ensure scalable and practical XL-MIMO adoption.

Main objectives:
(1) To understand spatial wave processing limits by integrating EM, signal processing, and information theory.
(2) To propose novel signal and information processing techniques for efficient XL-MIMO transceivers.
(3) To demonstrate feasibility in real over-the-air scenarios with hardware.

Our team has extensive expertise in physical-layer design for wireless systems, supported by strong publication records and state-of-the-art lab facilities to validate results. Research topics align with the Plan Estatal de Investigación Científica, Técnica y de Innovación 2024–27 (digitalization and telecommunications) and the 2024 Smart Network and Services Work Programme, targeting reconfigurable surfaces, ultra-massive MIMO, EM exposure, and large antenna deployments. The project is further endorsed by EPOs including Telefónica, Nokia, Greenerwave, Celestia TTI, Indra, DeepSig, Fivecomm, and IAF.

Our internationalization strategy emphasizes Horizon Europe participation, notably 6G-SNS calls and ERC Pillar I. In parallel, we will promote technology transfer through industrial R&D contracts, advancing readiness and fostering industrial adoption.