Movable antenna positions and hybrid beamformers are jointly optimized to maximize secrecy rate in near-field MIMO, achieving secure transmission when the eavesdropper is in the same direction and closer to the base station.
Performance analys is and optimization for movable antenna aided wideband communica tions,
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Movable Antenna Empowered Secure Near-Field MIMO Communications
Movable antenna positions and hybrid beamformers are jointly optimized to maximize secrecy rate in near-field MIMO, achieving secure transmission when the eavesdropper is in the same direction and closer to the base station.