Secrecy extraction from correlated fading channels: An upper bound

Abstract

The reciprocal nature of wireless radio channels can be well employed to extract a secret key between two terminals. The maximum size of a key that can be shared is characterized by the mutual information between the observations of two radios. We consider a correlated fading channel and a closed form for the mutual information is derived. It is found that the secrecy capacity is largely limited by the maximum Doppler frequency.

Cite this paper

@article{Wu2009SecrecyEF, title={Secrecy extraction from correlated fading channels: An upper bound}, author={Xiaofu Wu and Yue Song and Chunming Zhao and Xiaohu You}, journal={2009 International Conference on Wireless Communications & Signal Processing}, year={2009}, pages={1-3} }