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A remote display QoE improvement scheme for interactive applications in low network bandwidth environment

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Abstract

Screen transmission is an essential part of Desktop as a Service (DaaS) which directly influence the quality of experience (QoE). In this paper, we propose a novel QoE improvement scheme that dynamically controls the quality setting of the image compression before the screen transmission to decrease response time of the system still maintaining the satisfactory image quality, hence improves the QoE in interactive applications in a band-limited environment. The proposed scheme first selects the best quality setting appropriate for current network bandwidth quota, then uses the remaining bandwidth to improve the quality setting of low motion regions without any adverse effect on response time. To enable the adaptive quality selection and image quality refinement, we propose a compressed image file size inference model and a block priority calculation method respectively. Particularly, we implement our QoE Improvement Scheme to work with screen content coding. Both quantitative measurements and users’ evaluations in the experiments show that our QoE improvement scheme improves QoS as well as QoE by utilizing the available network bandwidth efficiently.

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Notes

  1. We compute network bandwidth quota for a frame buffer update based on the end-to-end network bandwidth and an expected response time.

  2. In this paper, we choose JPEG as our target image encoder. However, the same procedure can be applied to other image compressions in constructing similar models.

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Acknowledgements

This research was supported by the MSIP(Ministry of Science, ICT and Future Planning), Korea, under the ITRC(Information Technology Research Center) support program (IITP-2017-2013-0-00717) supervised by the IITP(Institute for Information & communications Technology Promotion)). Professor Eui-Nam Huh is the corresponding author.

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Authors and Affiliations

  1. Department of Computer Science and Engineering, Kyung Hee University, Global Campus, Yongin, South Korea

    Quang Thai Ngo, Layek Md. Abu, Xuan Qui Pham, Seungkyu Lee & Eui-Nam Huh

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  1. Quang Thai Ngo
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  2. Layek Md. Abu
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  3. Xuan Qui Pham
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  4. Seungkyu Lee
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  5. Eui-Nam Huh
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Correspondence to Eui-Nam Huh.

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Ngo, Q., Md. Abu, L., Pham, X. et al. A remote display QoE improvement scheme for interactive applications in low network bandwidth environment. Multimed Tools Appl 76, 22217–22241 (2017). https://doi.org/10.1007/s11042-017-4692-z

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