Abstract: This paper studies the physical layer security for a double reconfigurable intelligent surface (RIS) aided wireless powered communication system in the presence of an eaves-dropper, where a ...

UNION BRIDGE, Maryland (WBAL) -- Longtime residents on a Carroll County street randomly stopped receiving mail after a small change left a big impact. It was a mail mystery over the past week for 13 ...

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Abstract: With the increasing demand for spectrum efficiency and energy efficiency, reconfigurable intelligent surfaces (RISs) have attracted massive attention due to its low-cost and capability of ...