NDLI: Towards dynamic QoS-aware over-the-top video streaming

Content Provider	IEEE Xplore Digital Library
Author	Hyunwoo Nam Kyung Hwa Kim Bong Ho Kim Calin, D. Schulzrinne, H.
Copyright Year	2014
Description	Author affiliation: Bell Labs., Alcatel-Lucent, Murray, NJ, USA (Bong Ho Kim; Calin, D.) \|\| Dept. of Comput. Sci., Columbia Univ., New York, NY, USA (Kyung Hwa Kim; Schulzrinne, H.) \|\| Dept. of Electr. Eng., Columbia Univ., New York, NY, USA (Hyunwoo Nam)
Abstract	We present a study of traffic behavior of two popular over-the-top (OTT) video streaming services (YouTube and Netflix). Our analysis is conducted on different mobile devices (iOS and Android) over various wireless networks (Wi-Fi, 3G and LTE) under dynamic network conditions. Our measurements show that the video players frequently discard a large amount of video content although it is successfully delivered to a client. We first investigate the root cause of this unwanted behavior. Then, we propose a Quality-of-Service (QoS)-aware video streaming architecture in Long Term Evolution (LTE) networks to reduce the waste of network resource and improve user experience. The architecture includes a selective packet discarding mechanism, which can be placed in packet data network gateways (P-GW). In addition, our QoS-aware rules assist video players in selecting an appropriate resolution under a fluctuating channel condition. We monitor network condition and configure QoS parameters to control availability of the maximum bandwidth in real time. In our experimental setup, the proposed platform shows up to 20.58% improvement in saving downlink bandwidth and improves user experience by reducing buffer underflow period to an average of 32 seconds.
Starting Page	1
Ending Page	9
File Size	1072416
Page Count	9
File Format	PDF
ISBN	9781479947867
DOI	10.1109/WoWMoM.2014.6918921
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-19
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	HTTP Progressive Video Over The Top Applications IEEE 802.11 Standards Humanoid robots Mobile handsets Servers Mobile Wireless YouTube Video QoE Video Streaming Streaming media Androids HTTP Adaptive Bit-rate Streaming
Content Type	Text
Resource Type	Article

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