Journal
IEEE COMMUNICATIONS LETTERS
Volume 17, Issue 7, Pages 1483-1486Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LCOMM.2013.052013.130556
Keywords
Physical layer security; lattices; wiretap channel; artificial noise
Categories
Funding
- Monash Professional Fellowship
- Monash Faculty of Engineering Seed Funding Scheme
- Australian Research Council [ARC DP130100336]
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In this paper, we consider the use of artificial noise for secure communications. We propose the notion of practical secrecy as a new design criterion based on the behavior of the eavesdropper's error probability P-E, as the signal-to-noise ratio goes to infinity. We then show that the practical secrecy can be guaranteed by the randomly distributed artificial noise with specified power. We show that it is possible to achieve practical secrecy even when the eavesdropper can afford more antennas than the transmitter.
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