Movable antennas improve secret key generation rates in correlated channels
Position optimization alone yields 51% rate gains at high correlation, with joint optimization adding another 106%.
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Stories tagged #physical-layer-security
Key-Reuse Vulnerability of Phase-Keyed Fourier-Curve Modulation: Relation Leakage and Key-Refresh Cost on Coded Links
Researchers show key reuse in phase-keyed Fourier-curve modulation leaks the key via harmonic relation moments, forcing costly refresh.
Anti-Localization Uplink Communications in Satellite-Terrestrial Systems
Researchers propose cooperative jamming so a ground transmitter can reach a satellite while degrading adversarial TDOA localization.
gr-PHYSEC: Real-time Channel-based Key Generation for Physical Layer Secure Wireless Communications
gr-PHYSEC GNU Radio module derives symmetric encryption keys from wireless channel randomness using a neural network, validated on robotic platforms with ADALM-Pluto SDRs.
Has MIMO decoding been proved hard from lattice problems?
Researchers show the published lattice-hardness proof for MIMO decoding fails, as Regev's LWE reduction structure does not carry over to non-modular MIMO.