Smart Channel State Information Pre-processing for Joint Authentication and Secret Key Distillation. (arXiv:2206.00332v1 [eess.SP])

While the literature on RF fingerprinting-based authentication and key
distillation is vast, the two topics have customarily been studied separately.
In this paper, starting from the observation that the wireless channel is a
composite, deterministic / stochastic process, we propose a power domain
decomposition that allows performing the two tasks simultaneously. We devise
intelligent pre-processing schemes to decompose channel state information (CSI)
observation vectors into "predictable" and "unpredictable" components. The
former, primarily due to large-scale fading, can be used for …

authentication channel information key secret secret key smart state