Reward-maximization-based passive beamforming for multi-RIS-aided multi-user MISO systems

H Huang, X Wang, C Zhang, K Qiu… - 2021 IEEE Global …, 2021 - ieeexplore.ieee.org
Recently, reconfigurable intelligent surfaces (RISs) have emerged as a potential technique
for future 6G communications. Considering the practical hardware constraints of RISs, eg …

Joint beamforming design and resource allocation for double-IRS-assisted RSMA SWIPT systems

H Pang, M Cui, G Zhang, Q Wu - Computer Communications, 2022 - Elsevier
Being able to achieve high passive beamforming gains cost-effectively, intelligent reflecting
surface (IRS) is envisioned as a promising technique in assisting simultaneous wireless …

Angle-based multicast user selection and precoding for beam-hopping satellite systems

T Shi, Y Liu, S Kang, S Sun, R Liu - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This paper deals with user selection, beam selection, and multicast precoding with full
frequency reuse (FFR) for LEO satellite communication systems while exploiting the angle …

Tight probabilistic SINR constrained beamforming under channel uncertainties

X He, YC Wu - IEEE Transactions on Signal Processing, 2015 - ieeexplore.ieee.org
In downlink multi-user beamforming, a single basestation is serving a number of users
simultaneously. However, energy intended for one user may leak to other unintended users …

Large intelligent surface aided multiuser MIMO: Passive beamforming and information transfer

W Yan, X Yuan, ZQ He, X Kuai - ICC 2020-2020 IEEE …, 2020 - ieeexplore.ieee.org
This paper investigates the passive beamforming and information transfer (PBIT) technique
for the large intelligent surface (LIS) aided multiuser multiple-input multiple-output …

Beamforming optimization for IRS-aided communications with transceiver hardware impairments

H Shen, W Xu, S Gong, C Zhao… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
In this paper, we focus on intelligent reflecting surface (IRS) assisted multi-antenna
communications with transceiver hardware impairments encountered in practice. In …

Robust beamforming in multibeam satellite systems with non-orthogonal multiple access

W Lu, K An, T Liang, X Yan - IEEE Wireless Communications …, 2020 - ieeexplore.ieee.org
In this letter, we investigate the beamforming optimization problem in a non-orthogonal
multiple access (NOMA) based multibeam satellite system. The design key is to minimize the …

Robust energy-efficient hybrid beamforming design for massive MIMO LEO satellite communication systems

Y Liu, C Li, J Li, L Feng - IEEE Access, 2022 - ieeexplore.ieee.org
In low earth orbit (LEO) satellite communication systems, the limited energy supply capacity
and the difficulty in obtaining channel state information (CSI) are the practical challenges …

Evaluation of multi‐user multiple‐input multiple‐output digital beamforming algorithms in B5G/6G low Earth orbit satellite systems

MR Dakkak, DG Riviello, A Guidotti… - … Journal of Satellite …, 2023 - Wiley Online Library
Satellite communication systems will be a key component of 5G and 6G networks to achieve
the goal of providing unlimited and ubiquitous communications and deploying smart and …

Demand-based scheduling for precoded multibeam high-throughput satellite systems

PJ Honnaiah, E Lagunas, D Spano… - 2021 IEEE Wireless …, 2021 - ieeexplore.ieee.org
The growing demand for broadband applications has driven the satellite communication
service providers to investigate High Throughput Satellite (HTS) solutions. While precoding …