Optimal Planning of Dynamic Thermal Management for NANS (N-App N-Screen) Services

Autor: Chang-Gun Lee, Giyeon Kim, Oh-Chul Kwon, Wonjae Jang
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Electronics, Vol 7, Iss 11, p 311 (2018)
Electronics
Volume 7
Issue 11
ISSN: 2079-9292
Popis: Existing multi-screening technologies have been limited to mirroring the current screen of the smartphone onto all the connected external display devices. In contrast, NANS (N-App N-Screen) technology is able to display different applications (N-App) on different multiple display devices (N-Screen) using only a smartphone. For such NANS services, this paper empirically shows that the thermal violation constraint is more critical than the battery life constraint. For preventing the thermal violation, the existing DTM (Dynamic Thermal Management) techniques cannot be used since they consider thermal violations as abnormal, and hence prevent them by severely throttling CPU frequencies resulting in serious QoS degradation. In NANS service scenarios it is normal to operate in high temperature ranges to continue services with acceptable QoS. Targeting such scenarios, we first propose a novel thermal prediction method specially designed for NANS services. Based on the novel thermal prediction method, we then propose a novel DTM technique called, &ldquo
thermal planning&rdquo
to provide sustainable NANS services with sufficiently high QoS without thermal violations.
Databáze: OpenAIRE