TY - JOUR
T1 - Reconfigurable Intelligent Surfaces for 6G Systems
T2 - Principles, Applications, and Research Directions
AU - Pan, Cunhua
AU - Ren, Hong
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.
PY - 2021/6
Y1 - 2021/6
N2 - 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.
AB - 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.
KW - 5G mobile communication
KW - Energy efficiency
KW - Hardware
KW - Reconfigurable intelligent surfaces
KW - NOMA
KW - 6G mobile communication
KW - Wireless communication
UR - http://www.scopus.com/inward/record.url?scp=85109060763&partnerID=8YFLogxK
U2 - 10.1109/MCOM.001.2001076
DO - 10.1109/MCOM.001.2001076
M3 - Article
AN - SCOPUS:85109060763
SN - 0163-6804
VL - 59
SP - 14
EP - 20
JO - IEEE Communications Magazine
JF - IEEE Communications Magazine
IS - 6
M1 - 9475160
ER -
