Research Article
Physical Layer Authentication over an OFDM Fading Wiretap Channel
- Cite
- BibTeXPlain Text
@INPROCEEDINGS{10.4108/icst.valuetools.2011.245789, author={Paolo Baracca and Nicola Laurenti and Stefano Tomasin}, title={Physical Layer Authentication over an OFDM Fading Wiretap Channel}, proceedings={1st International ICST Workshop on Secure Wireless Networks}, publisher={ACM}, proceedings_a={SECURENETS}, year={2012}, month={6}, keywords={OFDM; physical layer security; authentication; wiretap channel; channel estimation}, doi={10.4108/icst.valuetools.2011.245789}}- Paolo Baracca
Nicola Laurenti
Stefano Tomasin
Year: 2012
Physical Layer Authentication over an OFDM Fading Wiretap Channel
SECURENETS
ICST
DOI: 10.4108/icst.valuetools.2011.245789
- 1: Department of Information Engineering - University of Padova
Abstract
Precise channel estimation at the physical layer allows to authenticate the source of a message in a wireless environment without the need of a pre-shared secret key based on the rapid spatial decorrelation of the channel. We consider the authentication scheme proposed by Xiao et al. and modify to suit a wiretap environment with orthogonal frequency division multiplexing (OFDM) modulation and fading channels. By formulating a nearly optimal attack strategy, and allowing some correlation among the channels, we evaluate the robustness of the scheme against challenging conditions and discuss the choice of system parameters.
- Keywords
- OFDM; physical layer security; authentication; wiretap channel; channel estimation
- Published
- 2012-06-26
- Publisher
- ACM
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