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

Cunhua Pan; Hong Ren; Kezhi Wang; Jonas Florentin Kolb; Maged Elkashlan; Ming Chen; Marco Di Renzo; Yang Hao; Jiangzhou Wang; A. Lee Swindlehurst; Xiaohu You; Lajos Hanzo

doi:10.1109/MCOM.001.2001076

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

Cunhua Pan, Hong Ren^*, Kezhi Wang, Jonas Florentin Kolb, Maged Elkashlan, Ming Chen, Marco Di Renzo, Yang Hao, Jiangzhou Wang, A. Lee Swindlehurst, Xiaohu You, Lajos Hanzo

^*Corresponding author for this work

School of Computer Science

Research output: Contribution to journal › Article › peer-review

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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.

Original language	English
Article number	9475160
Pages (from-to)	14-20
Number of pages	7
Journal	IEEE Communications Magazine
Volume	59
Issue number	6
DOIs	https://doi.org/10.1109/MCOM.001.2001076
Publication status	Published - Jun 2021

Keywords

5G mobile communication
Energy efficiency
Hardware
Reconfigurable intelligent surfaces
NOMA
6G mobile communication
Wireless communication

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10.1109/MCOM.001.2001076

2011.04300Accepted author manuscript, 927 KB

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

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. ",

keywords = "5G mobile communication, Energy efficiency, Hardware, Reconfigurable intelligent surfaces, NOMA, 6G mobile communication, Wireless communication",

author = "Cunhua Pan and Hong Ren and Kezhi Wang and Kolb, \{Jonas Florentin\} and Maged Elkashlan and Ming Chen and \{Di Renzo\}, Marco and Yang Hao and Jiangzhou Wang and Swindlehurst, \{A. Lee\} and Xiaohu You and Lajos Hanzo",

note = "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. ",

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AU - Wang, Kezhi

AU - Kolb, Jonas Florentin

AU - Elkashlan, Maged

AU - Chen, Ming

AU - Di Renzo, Marco

AU - Hao, Yang

AU - Wang, Jiangzhou

AU - Swindlehurst, A. Lee

AU - You, Xiaohu

AU - Hanzo, Lajos

N1 - 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.

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KW - 5G mobile communication

KW - Energy efficiency

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

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