Reconfigurable-intelligent-surface empowered wireless communications: Challenges and opportunities

X Yuan, YJA Zhang, Y Shi, W Yan… - IEEE wireless …, 2021 - ieeexplore.ieee.org
Reconfigurable intelligent surfaces (RISs) are regarded as a promising emerging hardware
technology to improve the spectrum and energy efficiency of wireless networks by artificially …

A Survey of NOMA-Aided Cell-Free Massive MIMO Systems

A Apiyo, J Izydorczyk - Electronics, 2024 - mdpi.com
The Internet of Everything is leading to an increasingly connected intelligent digital world.
Envisaged sixth-generation wireless networks require new solutions and technologies due …