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dc.contributor.author Lee, Juseung -
dc.contributor.author Kim, Dohwan -
dc.contributor.author Park, Kyung-Joon -
dc.contributor.author Eun, Yongsoon -
dc.date.accessioned 2020-07-10T04:07:19Z -
dc.date.available 2020-07-10T04:07:19Z -
dc.date.created 2020-06-30 -
dc.date.issued 2020-05 -
dc.identifier.issn 2169-3536 -
dc.identifier.uri http://hdl.handle.net/20.500.11750/12061 -
dc.description.abstract It has been reported that in the thermal control of real-time computing systems, zero-mean thermal sensor noise can induce a significant steady-state error between the target and actual temperatures of a CPU. Unlike the usual case of zero-mean sensor noise resulting in zero-mean temperature fluctuations around the target value, this noise-induced temperature error manifests in the form of a bias, i.e., the mean of the error is not zero. Existing work has analyzed the main cause of this error and produced a solution, known as TCUB-VS. However, this existing solution has a few drawbacks: the transient response is sluggish, and the exact value of the noise standard deviation is necessary in the design stage. In this paper, we propose a novel method of avoiding noise-induced temperature error while overcoming the limitations of the existing work. The proposed method uses an estimated CPU temperature for the part of the controller that is sensitive to noise while using actual measurements for the other part of the controller. In this way, our proposed method eliminates noise-induced temperature error and overcomes the drawbacks of the existing work. To show the efficacy of our proposed method, theoretical results are obtained using a stochastic averaging approach, and experimental results are presented along with simulations. -
dc.language English -
dc.publisher Institute of Electrical and Electronics Engineers Inc. -
dc.title A Novel Mitigation Method for Noise-Induced Temperature Error in CPU Thermal Control -
dc.type Article -
dc.identifier.doi 10.1109/ACCESS.2020.2995184 -
dc.identifier.scopusid 2-s2.0-85085991061 -
dc.identifier.bibliographicCitation IEEE Access, v.8, pp.94000 - 94009 -
dc.description.isOpenAccess TRUE -
dc.subject.keywordAuthor Temperature measurement -
dc.subject.keywordAuthor Temperature control -
dc.subject.keywordAuthor Temperature sensors -
dc.subject.keywordAuthor Thermal noise -
dc.subject.keywordAuthor Real-time systems -
dc.subject.keywordAuthor Noise measurement -
dc.subject.keywordAuthor Zero-mean thermal sensor noise -
dc.subject.keywordAuthor noise-induced error -
dc.subject.keywordAuthor thermal control for real-time systems -
dc.subject.keywordPlus SYSTEMS -
dc.subject.keywordPlus DESIGN -
dc.citation.endPage 94009 -
dc.citation.startPage 94000 -
dc.citation.title IEEE Access -
dc.citation.volume 8 -

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