Efficient delivery of scalable video using a streaming class model

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dc.contributor.authorQuinlan, Jason J.
dc.contributor.authorZahran, Ahmed H.
dc.contributor.authorSreenan, Cormac J.
dc.date.accessioned2018-03-08T16:24:38Z
dc.date.available2018-03-08T16:24:38Z
dc.date.issued2018-03-08
dc.description.abstractWhen we couple the rise in video streaming with the growing number of portable devices (smart phones, tablets, laptops) we see an ever-increasing demand for high-definition video online while on the move. Wireless networks are inherently characterised by restricted shared bandwidth and relatively high error loss rates, thus presenting a challenge for the efficient delivery of high quality video. Additionally, mobile devices can support/demand a range of video resolutions and qualities. This demand for mobile streaming highlights the need for adaptive video streaming schemes that can adjust to available bandwidth and heterogeneity, and can provide a graceful changes in video quality, all while respecting viewing satisfaction. In this context the use of well-known scalable/layered media streaming techniques, commonly known as scalable video coding (SVC), is an attractive solution. SVC encodes a number of video quality levels within a single media stream. This has been shown to be an especially effective and efficient solution, but it fares badly in the presence of datagram losses. While multiple description coding (MDC) can reduce the effects of packet loss on scalable video delivery, the increased delivery cost is counter productive for constrained networks. This situation is accentuated in cases where only the lower quality level is required. In this paper, we assess these issues and propose a new approach called Streaming Classes (SC) through which we can define a key set of quality levels, each of which can be delivered in a self-contained manner. This facilitates efficient delivery, yielding reduced transmission byte-cost for devices requiring lower quality, relative to MDC and ALD (42% and 76% respective reduction for layer 2), while also maintaining high levels of consistent quality. We also illustrate how selective packetisation technique can further reduce the effects of packet loss on viewable quality by leveraging the increase in the number of frames per group of pictures (GOP), while offering a means of reducing overall error correction and by providing equality of data in every packet transmitted per GOP.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid59
dc.identifier.citationQuinlan, J., Zahran, A. and Sreenan, C. (2018) 'Efficient Delivery of Scalable Video Using a Streaming Class Model', Information, 9(3), 59 (56pp). doi: 10.3390/info9030059en
dc.identifier.doi10.3390/info9030059
dc.identifier.endpage56
dc.identifier.issn2078-2489
dc.identifier.journaltitleInformationen
dc.identifier.startpage1
dc.identifier.urihttps://hdl.handle.net/10468/5587
dc.identifier.volume9
dc.language.isoenen
dc.publisherMDPIen
dc.relation.urihttps://www.mdpi.com/2078-2489/9/3/59
dc.rights© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectScalable videoen
dc.subjectLossy networksen
dc.subjectLayered codingen
dc.subjectError resilienceen
dc.subjectLayer distributionen
dc.subjectRateless codingen
dc.subjectStreaming classesen
dc.titleEfficient delivery of scalable video using a streaming class modelen
dc.typeArticle (peer-reviewed)en
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