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Information 2014, 5(4), 612-621;

Analysis of Characteristics of Power Consumption for Context-Aware Mobile Applications

Department of Electrical and Computer Engineering, Ajou University, 206, World cup-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 443-749, Korea
Author to whom correspondence should be addressed.
Received: 13 August 2014 / Revised: 31 October 2014 / Accepted: 11 November 2014 / Published: 14 November 2014
(This article belongs to the Special Issue Advances on the Internet of Things in a Smart Environment)
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In recent years, a large portion of smartphone applications (Apps) has targeted context-aware services. They aim to perceive users’ real-time context like his/her location, actions, or even emotion, and to provide various customized services based on the inferred context. However, context-awareness in mobile environments has some challenging issues due to limitations of devices themselves. Limited power is regarded as the most critical problem in context-awareness on smartphones. Many studies have tried to develop low-power methods, but most of them have focused on the power consumption of H/W modules of smartphones such as CPU and LCD. Only a few research papers have recently started to present some S/W-based approaches to improve the power consumption. That is, previous works did not consider energy consumed by context-awareness of Apps. Therefore, in this paper, we focus on the power consumption of context-aware Apps. We analyze the characteristics of context-aware Apps in a perspective of the power consumption, and then define two main factors which significantly influence the power consumption: a sort of context that context-aware Apps require for their services and a type of ways that a user uses them. The experimental result shows the reasonability and the possibility to develop low-power methods based on our analysis. That is, our analysis presented in this paper will be a foundation for energy-efficient context-aware services in mobile environments. View Full-Text
Keywords: power consumption; energy efficiency; low power; context-awareness; smartphone applications (Apps) power consumption; energy efficiency; low power; context-awareness; smartphone applications (Apps)

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Lee, M.; Kim, D.-K.; Lee, J.-W. Analysis of Characteristics of Power Consumption for Context-Aware Mobile Applications. Information 2014, 5, 612-621.

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