Imperial College London
Alternate

DrCongLing

Faculty of Engineering, Department of Electrical and Electronic Engineering

Reader in Coding and Information Theory
 
 
 
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Contact

 

+44 (0)20 7594 6214c.ling

 
 
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Location

 

815Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Wu:2016:10.1109/TWC.2016.2586472,
author = {Wu, X and Yan, Z and Ling, C and Xia, X-G},
doi = {10.1109/TWC.2016.2586472},
journal = {IEEE Transactions on Wireless Communications},
pages = {6611--6625},
title = {Artificial-noise-aided physical layer phase challenge-response authentication for practical OFDM transmission},
url = {http://dx.doi.org/10.1109/TWC.2016.2586472},
volume = {15},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - In this paper, we propose a novel Artificial-Noise- Aided PHYsical layer Phase Challenge-Response Authentication Scheme (ANA-PHY-PCRAS) for practical orthogonal frequency division multiplexing (OFDM) transmission. In this new scheme, Tikhonov-distributed artificial noise is introduced to interfere with the phase-modulated key for resisting potential key-recovery attacks. Then, we address various practical issues for ANAPHY- PCRAS with OFDM transmission, including correlation among subchannels, imperfect carrier and timing recoveries. Among them, we show that the effect of sampling offset is significant and a search procedure in the frequency domain should be incorporated for verification. With practical OFDM transmission, the number of uncorrelated subchannels is often insufficient. Hence, we employ a time-separated approach for allocating enough subchannels and a modified ANA-PHY-PCRAS is proposed to alleviate the discontinuity of channel phase at far-separated time slots. Finally, the key equivocation is derived for the worst case scenario. We conclude that the enhanced security of ANA-PHY-PCRAS comes from the uncertainties of both the wireless channel and introduced artificial noise, compared to the traditional challenge-response authentication scheme implemented at the upper layer.
AU  - Wu,X
AU  - Yan,Z
AU  - Ling,C
AU  - Xia,X-G
DO  - 10.1109/TWC.2016.2586472
EP  - 6625
PY  - 2016///
SN  - 1558-2248
SP  - 6611
TI  - Artificial-noise-aided physical layer phase challenge-response authentication for practical OFDM transmission
T2  - IEEE Transactions on Wireless Communications
UR  - http://dx.doi.org/10.1109/TWC.2016.2586472
UR  - http://hdl.handle.net/10044/1/40353
VL  - 15
ER  -
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