Reconfigurable Intelligent Surfaces (RIS) are recognized for their ability to actively control
signal propagation, presenting a wide array of applications in 5G and the forthcoming 6G …

Reconfigurable intelligent surfaces (RIS) can actively perform beamforming and have
become a crucial enabler for the wireless systems in the future. The direction-of-arrival …

Abstract Direction-of-arrival (DOA) estimation is a classic research topic with numerous
applications in the field of signal processing. However, multiple radio frequency channels …

Reconfigurable intelligent surfaces (RIS) can actively perform beamforming and have
become a crucial enabler for wireless systems in the future. The direction-of-arrival (DOA) …

This paper aims to investigate the ability of reconfigurable intelligent surfaces (RIS)
damaged in multi-user environments to eliminate interference. Our research found that even …

In order to solve the problem that traditional sparse arrays only emphasize high degrees of
freedom and ignore low coupling, uniform array fitting method can design arrays with low …

In massive multiple-input multiple-output (MIMO) systems, cellular users are affected by inter-
cell coherent interference, especially pilot contamination. To solve this problem and improve …

Abstract Reconfigurable Intelligent Surface (RIS) has become an enabling technology for
economically and efficiently realizing intelligent and reconfigurable wireless communication …