Secret-key generation from wireless channels: Mind the reflections
Information Theory
2013-08-07 v1 Cryptography and Security
math.IT
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.
Cite
@article{arxiv.1308.1336,
title = {Secret-key generation from wireless channels: Mind the reflections},
author = {Hendrik Vogt and Aydin Sezgin},
journal= {arXiv preprint arXiv:1308.1336},
year = {2013}
}
Comments
6 pages, 9 figures