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 ...

Abstract: In this paper, we investigate the problem of spatial non-stationary channel estimation for near-field extremely large-scale multiple-input multiple-output (XL-MIMO) systems. Specifically, we ...

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Pascal Oparada, a reporter for Legit.ng, has over ten years of experience covering technology, energy, stocks, investment, and the economy. The Nigeria Customs Service (NCS) has launched a new digital ...

A major security incident occurred at the White House when a man drove his vehicle into a security gate at the corner of 17th and E Streets while Donald Trump was inside the building. The crash ...

Visuals from the crash outside the White House have gone viral on social media. A motorist was arrested after he “drove his vehicle” into a security gate outside the White House complex, authorities ...

The Secret Service has cordoned off sections of Pennsylvania Avenue and 17th Street as investigators evaluate potential threats. (Image Credit: X/@PenguinSix) In the wake of the White House barricade ...

A person was arrested late Tuesday after a vehicle rammed into a Secret Service security checkpoint a few hundred feet from the White House, officials said. A Secret Service spokesperson said the ...

An individual crashed a car into the Secret Service security gate outside the White House on Tuesday night. The incident occurred at 10:37 p.m. at the security checkpoint located at 17th and E St NW, ...

A vehicle is seen after ramming a security barricade at the White House complex in Washington, D.C., on Tuesday night. Photo: Andrew Leyden/Getty Images ...