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Title: User-Specific Skin Temperature-Aware DVFS for Smartphones
Authors: Eğilmez, Begüm
Memik, Gökhan
Öğrenci, Memik Seda
Ergin, Oğuz
Keywords: Thermal modeling
mobile device
skin temperature
Issue Date: 2015
Publisher: IEEE
Source: Egilmez, B., Memik, G., Ogrenci-Memik, S., & Ergin, O. (2015, March). User-specific skin temperature-aware DVFS for smartphones. In 2015 Design, Automation & Test in Europe Conference & Exhibition (DATE) (pp. 1217-1220). IEEE.
Abstract: Skin temperature of mobile devices intimately affects the user experience. Power management schemes built into smartphones can lead to quickly crossing a user's threshold of tolerable skin temperature. Furthermore, there is a significant variation among users in terms of their sensitivity. Hence, controlling the skin temperature as part of the device's power management scheme is paramount. To achieve this, we first present a method for estimating skin and screen temperature at run-time using a combination of available on-device thermal sensors and performance indicators. In an Android-based smartphone, we achieve 99.05% and 99.14% accuracy in estimations of back cover and screen temperatures, respectively. Leveraging this run-time predictor, we develop User-specific Skin Temperature-Aware (USTA) DVFS mechanism to control the skin temperature. Performance of USTA is tested both with benchmarks and user tests comparing USTA to the standard Android governor. The results show that more users prefer to use USTA as opposed to the default DVFS mechanism.
Description: Conference on Design Automation Test in Europe (DATE) (2015 : Grenoble, FRANCE)
ISBN: 978-3-9815-3704-8
ISSN: 1530-1591
Appears in Collections:Bilgisayar Mühendisliği Bölümü / Department of Computer Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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