KSII Transactions on Internet and Information Systems (TIIS)

  • 제11권10호
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  • Pages.5168-5181
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  • 2017
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  • 1976-7277(pISSN)
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  • 1976-7277(eISSN)
한국인터넷정보학회 (Korean Society for Internet Information)
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Augmented Reality based Low Power Consuming Smartphone Control Scheme

  • Chung, Jong-Moon (School of Electrical and Electronic Engineering, Yonsei University) ;
  • Ha, Taeyoung (School of Electrical and Electronic Engineering, Yonsei University) ;
  • Jo, Sung-Woong (School of Electrical and Electronic Engineering, Yonsei University) ;
  • Kyong, Taehyun (School of Electrical and Electronic Engineering, Yonsei University) ;
  • Park, So-Yun (School of Electrical and Electronic Engineering, Yonsei University)
  • 투고 : 2017.05.27
  • 심사 : 2017.10.19
  • 발행 : 2017.10.31
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초록

The popularity of augmented reality (AR) applications and games are in high demand. Currently, the best common platform to implement AR services is on a smartphone, as online games, navigators, personal assistants, travel guides are among the most popular applications of smartphones. However, the power consumption of an AR application is extremely high, and therefore, highly adaptable and dynamic low power control schemes must be used. Dynamic voltage and frequency scaling (DVFS) schemes are widely used in smartphones to minimize the energy consumption by controlling the device's operational frequency and voltage. DVFS schemes can sometimes lead to longer response times, which can result in a significant problem for AR applications. In this paper, an AR response time monitor is used to observe the time interval between the AR image input and device's reaction time, in order to enable improved operational frequency and AR application process priority control. Based on the proposed response time monitor and the characteristics of the Linux kernel's completely fair scheduler (CFS) (which is the default scheduler of Android based smartphones), a response time step control (RSC) scheme is proposed which adaptively adjusts the CPU frequency and interactive application's priority. The experimental results show that RSC can reduce the energy consumption up to 10.41% compared to the ondemand governor while reliably satisfying the response time performance limit of interactive applications on a smartphone.

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참고문헌

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