This paper addresses the hardware structure of Reconfigurable Intelligent Surfaces (RIS)
and presents a comprehensive overview of RIS design, considering both unit design and …

The use of reconfigurable intelligent surfaces (RIS) can improve wireless communication by
modifying the wireless link to create virtual line-of-sight links, bypass blockages, suppress …

Determining optimal phases for a discrete reconfigurable intelligent surface (RIS) in RIS-
aided wireless systems is known to be a challenging problem. This paper develops a novel …

Human activity recognition (HAR) is crucial in smart homes, security, and healthcare.
Existing systems are limited by insufficient spatial diversity due to the constrained number of …

Reconfigurable Intelligent Surface (RIS) is envisioned to be an enabling technique in 6G
wireless communications. By configuring the reflection beamforming codebook, RIS focuses …

Human activity recognition (HAR) is integral to smart homes, security, and healthcare.
Existing systems face challenges such as the absence of line-of-sight links, insufficient …

Most beam design schemes in RIS-aided multi-user systems suffer from imbalanced signal
power gains and computation complexity. This paper tackles the crucial beam design issue …

The conventional beam management procedure mandates that the user equipment (UE)
periodically measure the received signal reference power (RSRP) and transmit these …