Visible to the public Biblio

Filters: Keyword is multiple antenna eavesdroppers  [Clear All Filters]
2015-05-01
Pasolini, G., Dardari, D..  2014.  Secret key generation in correlated multi-dimensional Gaussian channels. Communications (ICC), 2014 IEEE International Conference on. :2171-2177.

Wireless channel reciprocity can be successfully exploited as a common source of randomness for the generation of a secret key by two legitimate users willing to achieve confidential communications over a public channel. This paper presents an analytical framework to investigate the theoretical limits of secret-key generation when wireless multi-dimensional Gaussian channels are used as source of randomness. The intrinsic secrecy content of wide-sense stationary wireless channels in frequency, time and spatial domains is derived through asymptotic analysis as the number of observations in a given domain tends to infinity. Some significant case studies are presented where single and multiple antenna eavesdroppers are considered. In the numerical results, the role of signal-to-noise ratio, spatial correlation, frequency and time selectivity is investigated.