Intelligent reflecting surface-aided wireless communications: A tutorial

Q Wu, S Zhang, B Zheng, C You… - IEEE transactions on …, 2021 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal
propagation in wireless networks. By smartly tuning the signal reflection via a large number …

Reconfigurable intelligent surfaces for smart wireless environments: channel estimation, system design and applications in 6G networks

YC Liang, J Chen, R Long, ZQ He, X Lin… - Science China …, 2021 - Springer
Reconfigurable intelligent surface (RIS), one of the key enablers for the sixth-generation
(6G) mobile communication networks, is considered by designers to smartly reconfigure the …

Smart radio environments empowered by reconfigurable intelligent surfaces: How it works, state of research, and the road ahead

M Di Renzo, A Zappone, M Debbah… - IEEE journal on …, 2020 - ieeexplore.ieee.org
Reconfigurable intelligent surfaces (RISs) are an emerging transmission technology for
application to wireless communications. RISs can be realized in different ways, which …

Multi-hop RIS-empowered terahertz communications: A DRL-based hybrid beamforming design

C Huang, Z Yang, GC Alexandropoulos… - IEEE Journal on …, 2021 - ieeexplore.ieee.org
Wireless communication in the TeraHertz band (0.1-10 THz) is envisioned as one of the key
enabling technologies for the future sixth generation (6G) wireless communication systems …

Channel estimation for intelligent reflecting surface assisted MIMO systems: A tensor modeling approach

GT de Araújo, ALF de Almeida… - IEEE Journal of Selected …, 2021 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS) is an emerging technology for future wireless
communications including 5G and especially 6G. It consists of a large 2D array of (semi-) …

Location information aided multiple intelligent reflecting surface systems

X Hu, C Zhong, Y Zhang, X Chen… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
This article proposes a novel location information aided multiple intelligent reflecting surface
(IRS) systems. Assuming imperfect user location information, the effective angles from the …

Terahertz multi-user massive MIMO with intelligent reflecting surface: Beam training and hybrid beamforming

B Ning, Z Chen, W Chen, Y Du… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Terahertz (THz) communications open a new frontier for the wireless network thanks to their
dramatically wider available bandwidth compared to the current micro-wave and …

Spectral and energy efficiency of IRS-assisted MISO communication with hardware impairments

S Zhou, W Xu, K Wang, M Di Renzo… - IEEE wireless …, 2020 - ieeexplore.ieee.org
In this letter, we analyze the spectral and energy efficiency of an intelligent reflecting surface
(IRS)-assisted multiple-input single-output (MISO) downlink system with hardware …

Fast beam training for IRS-assisted multiuser communications

C You, B Zheng, R Zhang - IEEE Wireless Communications …, 2020 - ieeexplore.ieee.org
In this letter, we consider an intelligent reflecting surface (IRS)-assisted multiuser
communication system, where an IRS is deployed to provide virtual line-of-sight (LoS) links …

Wireless communication via double IRS: Channel estimation and passive beamforming designs

C You, B Zheng, R Zhang - IEEE Wireless Communications …, 2020 - ieeexplore.ieee.org
In this letter, we study efficient channel estimation and passive beamforming designs for a
double-intelligent reflecting surface (IRS) aided single-user communication system, where a …