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DE-BAR: Device Energy-Centric Backlight and Adaptive Region of Interest Mechanism for Wireless Mobile Devices

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Abstract

One of the main challenges in the smart-phone world is that they are battery constrained and the development of battery technologies have not kept pace with the required energy demand. In particular, there are still significant technological gaps on developing energy-aware solutions that would prolong the battery life of devices without affecting the quality of the distributed video/multimedia content. In this aspect, this paper proposes DE-BAR—a process based innovation that will provide a seamless battery saving mechanism, based on backlight and adaptive region of interest of the streamed multimedia content. This work intends to look at the nature of the video/multimedia content that is received in the device and adapts the energy consumption dynamically at three levels: Screen Colour, backlight and Intensity; and adaptive Region-of-Interest (RoI) based variation in the multimedia content. Notably, the work provides the mechanism for real-time adaptation. The colour intensity, number of RoI for the video sequence and the frame rate is decided by the spatial and temporal complexity of the video. The energy consumption is measured using an Arduino board while video quality is analyzed using extensive subjective tests. The results indicate that more than 50% energy could be saved in the device while retaining above average perceptual video quality.

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Authors and Affiliations

  1. Indian Institute of Information Technology (IIIT), Sricity, Sricity, AP, India

    Hrishikesh Venkataraman

  2. Performance Engineering Laboratory, Dublin City University (DCU), Dublin, Ireland

    Ting Bi, Ting Wu, Ioana Ghergulescu & Gabriel-Miro Muntean

  3. Adaptemy Ltd, Dublin, Ireland

    Ioana Ghergulescu

Authors
  1. Hrishikesh Venkataraman
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  2. Ting Bi
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  3. Ting Wu
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  4. Ioana Ghergulescu
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  5. Gabriel-Miro Muntean
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Corresponding author

Correspondence to Hrishikesh Venkataraman.

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Venkataraman, H., Bi, T., Wu, T. et al. DE-BAR: Device Energy-Centric Backlight and Adaptive Region of Interest Mechanism for Wireless Mobile Devices. Wireless Pers Commun 100, 351–377 (2018). https://doi.org/10.1007/s11277-017-5076-4

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  • DOI: https://doi.org/10.1007/s11277-017-5076-4

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