The effect of client buffer and MBR consideration on DASH Adaptation Logic

Ran Dubin, Ofer Hadar, Amit Dvir

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    25 Scopus citations

    Abstract

    DASH is new ISO/IEC MPEG and 3GPP standard for HTTP multimedia streaming that begins to be widely accepted in the industry. DASH is design to be flexible and support various multimedia formats. DASH unify the proprietary adaptive streaming solutions and suggests differing between them by using different behavioral approaches, each one best suited for the specific streaming application. Each behavior is determined by Adaptation Logic (AL), which decides according to the estimation of the network conditions and buffer state what is the best suitable segment to be requested from the streaming server. This work presents the drawback of current DASH standard and its vulnerability to variable bit rate stream encoding. We have found that the advertised bit rate for each quality layer that was dictated by the Media Presentation Description (MPD) isn't accurate for VBR streaming. Moreover, we suggest an Adaptive Buffer Moving Median (ABMM) buffer sensitive adaptation logic that will support its bandwidth estimation decisions based on the client buffer redundancy. The new method was found to be suitable for mobile network traffic which is characterized with large fluctuations with network bandwidth. Our proposed solution showed more than 20 percent better average PSNR improvement compared to the original VLC plug-in rate adaptation logic.

    Original languageEnglish
    Title of host publication2013 IEEE Wireless Communications and Networking Conference, WCNC 2013
    Pages2178-2183
    Number of pages6
    DOIs
    StatePublished - 21 Aug 2013
    Event2013 IEEE Wireless Communications and Networking Conference, WCNC 2013 - Shanghai, China
    Duration: 7 Apr 201310 Apr 2013

    Publication series

    NameIEEE Wireless Communications and Networking Conference, WCNC
    ISSN (Print)1525-3511

    Conference

    Conference2013 IEEE Wireless Communications and Networking Conference, WCNC 2013
    Country/TerritoryChina
    CityShanghai
    Period7/04/1310/04/13

    Keywords

    • Adaptive algorithms
    • DASH
    • HTTP
    • Video

    ASJC Scopus subject areas

    • General Engineering

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