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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Abstract
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 |
| URI: | http://nrl.northumbria.ac.uk/id/eprint/47998 |
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