Abstract: Accurate estimation of the cascaded channel from a user equipment (UE) to a base station (BS) via each reconfigurable intelligent surface (RIS) element is critical to realizing the full ...
We followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. 19 Table 1 summarizes the eligibility criteria. Study design Quantitative (interventional or ...
Abstract: The ultrasonic phased array system, known for its ability to transmit and receive ultrasound, has been widely utilized in medical ultrasonic imaging. Recently, several novel air-based ...
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