Secret-key generation from wireless channels: Mind the reflections

Hendrik Vogt; Aydin Sezgin

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arXiv · 1308.1336

Secret-key generation from wireless channels: Mind the reflections

Hendrik Vogt·Aydin Sezgin

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Abstract

Secret-key generation in a wireless environment exploiting the randomness and reciprocity of the channel gains is considered. A new channel model is proposed which takes into account the effect of reflections (or re-radiations) from receive antenna elements, thus capturing an physical property of practical antennas. It turns out that the reflections have a deteriorating effect on the achievable secret-key rate between the legitimate nodes at high signal-to-noise-power-ratio (SNR). The insights provide guidelines in the design and operation of communication systems using the properties of the wireless channel to prevent eavesdropping.

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Hendrik Vogt, Aydin Sezgin. 2013-08-06. Secret-key generation from wireless channels: Mind the reflections. https://arxiv.org/abs/1308.1336

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