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

By Cunhua Pan, Hong Ren, Kezhi Wang, J. F. Kolb, Maged Elkashlan, Ming Chen, M. Di Renzo, Yang Hao, Jiangzhou Wang, A. L. Swindlehurst and 2 more. IEEE Communications Magazine, 2021

663 citations recorded by the source corpus.

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.

Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/149893d9c6ba9b429cf4621b627ee7651ffd9205

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In Electrical and Electronic Engineering

Citations in the corpus

Joint Transmit Waveform and Passive Beamforming Design for RIS-Aided DFRC Systems (2021, background): “Recent research reveals that reconfigurable intelligent surface (RIS) is a promising technology owing to its superior ability of boosting the capacity and coverage of wireless networks by smartly manipulating radio environment [3]-[6].”