Reconfigurable Intelligent Surfaces for 6G Systems: Principles, Applications, and Research Directions

Pan, Cunhua, Ren, Hong, Wang, Kezhi, Kolb, Jonas Florentin, Elkashlan, Maged, Chen, Ming, Di Renzo, Marco, Hao, Yang, Wang, Jiangzhou, Swindlehurst, A. Lee, You, Xiaohu and Hanzo, Lajos (2021) Reconfigurable Intelligent Surfaces for 6G Systems: Principles, Applications, and Research Directions. IEEE Communications Magazine, 59 (6). pp. 14-20. ISSN 0163-6804

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Reconfigurable intelligent surfaces (RISs) or intelligent reflecting surfaces (IRSs) are regarded as one of the most promising and revolutionizing techniques for enhancing the spectrum and/ or energy efficiency of wireless systems. These devices are capable of reconfiguring the wireless propagation environment by carefully tuning the phase shifts of a large number of low-cost passive reflecting elements. In this article, we aim to answer four fundmental questions: 1) Why do we need RISs? 2) What is an RIS? 3) What are RIS's applications? 4) What are the relevant challenges and future research directions? In response, eight promising research directions are pointed out.

Item Type: Article
Additional Information: Funding Information: This work was supported in part by the National Key Research and Development Project under Grant 2019YFE0123600, in part by the Research Fund of National Mobile Communications Research Laboratory, Southeast University (No.2021B01) and the Fundamental Research Funds for the Central Universities.
Uncontrolled Keywords: 5G mobile communication, Energy efficiency, Hardware, Reconfigurable intelligent surfaces, NOMA, 6G mobile communication, Wireless communication
Subjects: G400 Computer Science
G500 Information Systems
Department: Faculties > Engineering and Environment > Computer and Information Sciences
Depositing User: Rachel Branson
Date Deposited: 16 Dec 2021 14:21
Last Modified: 16 Dec 2021 14:30

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