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On the Performance of Partial LIS for 6G Systems
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Orientador(es)
Resumo(s)
One of the key technologies of 6G communications relies on large intelligent surfaces (LIS), which can be viewed as a near-field beamformer that is supportive of extremely high symbol rates and enables a high level of interference avoidance. This article focuses on LIS systems, analysing the impact of the use of a whole LIS system or a subset of an antenna array. We analyse an LIS system associated with a single carrier with frequency domain equalization (SC-FDE), and with different receiver types of varying complexities. Because it is a function of the number of antennas, the computational complexity decreases when antenna elements that are closer to the user equipment are used instead of the whole LIS. Moreover, with a partial LIS, a reduction of energy consumption is achieved, and mitigation of the interference levels is obtained, allowing a performance very close to that obtained with the whole LIS system.
Descrição
Funding Information: We acknowledge the support of FCT/MCTES, as described above in the funding section. We also acknowledge the support of Autonoma TechLab for providing an interesting environment in which to carry out this research. Funding Information: This work is funded by FCT/MCTES through national funds and, when applicable, co-funded EU funds under the projects UIDB/EEA/50008/2020 and 2022.03897.PTDC. Publisher Copyright: © 2024 by the authors.
Palavras-chave
6G LIS systems receiver types SC-FDE Control and Systems Engineering Signal Processing Hardware and Architecture Computer Networks and Communications Electrical and Electronic Engineering SDG 7 - Affordable and Clean Energy