DMCA
Identifying Wireless Users via Transmitter Imperfections,” to appear (2011)
| Venue: | in the IEEE Journal on Selected Areas in Communications- Special Issue on Advances in Digital Forensics for Communications and Networking |
| Citations: | 7 - 3 self |
BibTeX
@INPROCEEDINGS{Polak11identifyingwireless,
author = {Adam C. Polak and Sepideh Dolatshahi and Dennis L. Goeckel},
title = {Identifying Wireless Users via Transmitter Imperfections,” to appear},
booktitle = {in the IEEE Journal on Selected Areas in Communications- Special Issue on Advances in Digital Forensics for Communications and Networking},
year = {2011}
}
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Abstract
Abstract—Variations in the RF chain of radio transmitters can be used as a signature to uniquely associate wireless devices with a given transmission. Previous approaches, which have varied from transient analysis to machine learning, do not provide verifiable accuracy, which is essential for admissibility of the methods in the court. Here we detail a firststeptowardamodelbased approach, which uses statistical models of RF transmitter components that are amenable for analysis. Algorithms based on statistical signal processing methods are developed to exploit non-linearities of wireless transmitters for the purpose of user identification in wireless systems. The decision rules are derived and their performance is analyzed. In order to establish the viability of the proposed approach, the practical variations of transmitter chain components are analyzed based on simulations, measurements and manufacturers ’ specifications. Results show that the proposed identification methods can be effective, even for short data records and relatively low signal-to-noise ratios, when exploiting imperfections of commercially used RF transmitters. Index Terms—Radiometric identification, Volterra series, Brownian Bridge, Likelihood Ratio Test, breaking anonymity,
Keyphrases
transmitter imperfection wireless user wireless transmitter manufacturer specification transmitter chain component machine learning previous approach user identification verifiable accuracy short data record decision rule identification method rf chain wireless system likelihood ratio test abstract variation volterra series practical variation index term radiometric identification statistical signal processing method wireless device brownian bridge radio transmitter transient analysis rf transmitter firststeptowardamodelbased approach statistical model low signal-to-noise ratio rf transmitter component
