Archivio Istituzionale della RicercaThe use of holographic reconfigurable surfaces (RHSs) for energy efficiency (EE) maximization in MIMO links is studied. Two RHSs are considered, one at the transmitter and one at the receiver, and their reflection coefficients are optimized together with the beamforming structure. The optimization of the two RHSs is carried out in closed form, assuming a single data stream is transmitted. The performance of the proposed optimization is analyzed numerically, revealing that the use of RHSs can provide significantly higher EE compared to massive antenna arrays, while still providing satisfactory performance in terms of achievable rate.
Energy Efficiency Maximization of Holographic Beamforming Empowered by Nearly-Passive RHS / Kuku Fotock, Robert; Imoize, Agbotiname Lucky; Zappone, Alessio; Di Renzo, Marco; Zhang, Yangishi. - ELETTRONICO. - (2025), pp. 1-5. (Intervento presentato al convegno Proceedings of the 2025 IEEE 26th International Workshop on Signal Processing and Artificial Intelligence for Wireless Communications (SPAWC) tenutosi a Surrey (UK) nel 7-10 July 2025) [10.1109/SPAWC66079.2025.11143314].
Energy Efficiency Maximization of Holographic Beamforming Empowered by Nearly-Passive RHS
Agbotiname Lucky Imoize;
2025
Abstract
The use of holographic reconfigurable surfaces (RHSs) for energy efficiency (EE) maximization in MIMO links is studied. Two RHSs are considered, one at the transmitter and one at the receiver, and their reflection coefficients are optimized together with the beamforming structure. The optimization of the two RHSs is carried out in closed form, assuming a single data stream is transmitted. The performance of the proposed optimization is analyzed numerically, revealing that the use of RHSs can provide significantly higher EE compared to massive antenna arrays, while still providing satisfactory performance in terms of achievable rate.
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Descrizione: Energy Efficiency Maximization of Holographic Beamforming Empowered by Nearly-Passive RHS
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https://hdl.handle.net/11583/3002897