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摘要
Nowadays, the most investigated concepts of physical layer security encompass asymptotic criteria of secrecy. Taking a different perspective, in this work we come back to Shannon%26apos;s original formulation of perfect secrecy, amounting to impose exactly zero mutual information between the source message and the data gathered by the eavesdropper. By jamming the intruder with a special class of noise-that we call pdf-bandlimited-and adopting a novel %26quot;out of the (pdf) band%26quot; information encoding technique, it is shown that a perfectly secure communication can be in fact sustained over the main channel, leaving no chances to the eaves-dropper.
- 出版日期2014-1
