Abstract: As a kind of wavefront with helical phase, orbital angular momentum (OAM) shows the great potential to enhance the security results of wireless communications due to its unique orthogonality ...

Abstract: Due to the broadcast and open characteristics of wireless channels, near-field physical layer security has attracted much attention to facilitate wireless information security against ...

Outpost 2: Orbital Siege (provisional) is an FPS, real-time strategy, and tower defense game which features changes like mobile fortress revolution, evolving from static towers to a movable battleship ...

WASHINGTON — Orbital launch activity set another annual record in 2025, although future growth may depend on factors different from those that fueled the recent surge. There were 324 orbital launch ...