Reducing Aging Impacts in Digital Sensors via Run-time Calibration

dc.contributor.authorAnik, Md Toufiq Hasan
dc.contributor.authorEbrahimabadi, Mohammad
dc.contributor.authorDanger, Jean-Luc
dc.contributor.authorGuilley, Sylvain
dc.contributor.authorKarimi, Naghmeh
dc.date.accessioned2022-01-26T15:47:48Z
dc.date.available2022-01-26T15:47:48Z
dc.date.issued2021-12-19
dc.description.abstractHazards or intentional perturbations must be identified in safety- and security-critical applications. Digital sensors have been shown to be an appealing approach to detect such abnormalities. However, as any sensor technology, digital sensors are prone to mis-calibration. In particular, even if the digital sensor initial calibration is correct, the rate of false and missed alarms might increase when the sensor is aged. In this paper, we thoroughly study the impact of aging-induced false and missed alarms. Indeed aging relates to the usage time, and a priori model (historical data for environmental variation) for predicting the aging is unrealistic for digital sensors as tracking the usage time with related temperature and voltage variation imposes high overhead. Accordingly, we propose an alternative approach where not one but two sensors are deployed. In practice, one sensor is used to detect environmental deviations, while the second one is used as the reference. In this respect, the second sensor is only operated seldom, mostly to re-calibrate the active sensor when aged. From this dual input (unaged and aged sensor), corrective models are derived. We account for two methods, namely simple but effective offset correction, and adjustment based on machine-learning. We conduct extensive characterizations (both pre-silicon simulations and post-silicon measurements on FPGA) which quantitatively confirm the applicability and high sensitivity of digital sensors.en_US
dc.description.sponsorshipThis work has benefited from a funding via the bilateral project APRIORI (Advanced PRivacy of IOT Devices through Robust Hardware Implementations), from FR-DE cybersecurity 2020 call (MESRI-BMBF), managed by ANR from the French side. It has been also supported by the National Science Foundation CAREER Award (NSF CNS-1943224), and NSF MRI Award (1920079).en_US
dc.format.extent22 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2rryo-lxmf
dc.identifier.urihttp://hdl.handle.net/11603/24085
dc.language.isoen_USen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Computer Science and Electrical Engineering Department Collection
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.en_US
dc.titleReducing Aging Impacts in Digital Sensors via Run-time Calibrationen_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0002-5825-6637en_US

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