Strategies towards robust and stable application layer multicast

Tetsuya Kusumoto, Su Zhou, Jiro Katto, Sakae Okubo

    研究成果: Conference contribution

    6 引用 (Scopus)

    抄録

    The purpose of this study is to construct a robust and stable overlay tree of ALM (Application Layer Multicast) for real-time video transmission. Firstly, we propose a proactive route maintenance which enables fast recovery of the overlay tree against node departures and failures. By forcing free node degrees for route backup, signaling overheads for route maintenance can be reduced in a scalable manner. Secondly, we improve performance of the proposed method by introducing layered video coding. Smooth layer management instead of coarse degree management contributes to reduction of the depth of overlay tree (i.e. delay) as well as to efficient bandwidth utilization. Thirdly, we introduce session records of each node into the overlay tree construction. Long-term history of user access records is expected to bring more robust overlay trees. Finally, we carried out extensive evaluation experiments. Simulations and implementations demonstrate that our methods lead to fast recovery of the overlay tree against node departures and reduction of the signaling overheads. Furthermore, introduction of layered video coding is proved to be efficient to reduce delays, to improve bandwidth utilization and to avoid severe degradation of picture quality. Final experiments show that incorporation of node stability reduces the number of nodes affected by parent node departures by promoting adequate nodes to upper layer of the ALM tree.

    元の言語English
    ホスト出版物のタイトルPACKET VIDEO 2007 - 16th International Packet Video Workshop
    DOI
    出版物ステータスPublished - 2007
    イベントPACKET VIDEO 2007 - 16th International Packet Video Workshop - Lausanne
    継続期間: 2007 11 122007 11 13

    Other

    OtherPACKET VIDEO 2007 - 16th International Packet Video Workshop
    Lausanne
    期間07/11/1207/11/13

    Fingerprint

    Image coding
    Pavement overlays
    Bandwidth
    Recovery
    Experiments
    Degradation

    ASJC Scopus subject areas

    • Computer Graphics and Computer-Aided Design
    • Computer Vision and Pattern Recognition
    • Computer Networks and Communications

    これを引用

    Kusumoto, T., Zhou, S., Katto, J., & Okubo, S. (2007). Strategies towards robust and stable application layer multicast. : PACKET VIDEO 2007 - 16th International Packet Video Workshop [4397048] https://doi.org/10.1109/PACKET.2007.4397048

    Strategies towards robust and stable application layer multicast. / Kusumoto, Tetsuya; Zhou, Su; Katto, Jiro; Okubo, Sakae.

    PACKET VIDEO 2007 - 16th International Packet Video Workshop. 2007. 4397048.

    研究成果: Conference contribution

    Kusumoto, T, Zhou, S, Katto, J & Okubo, S 2007, Strategies towards robust and stable application layer multicast. : PACKET VIDEO 2007 - 16th International Packet Video Workshop., 4397048, PACKET VIDEO 2007 - 16th International Packet Video Workshop, Lausanne, 07/11/12. https://doi.org/10.1109/PACKET.2007.4397048
    Kusumoto T, Zhou S, Katto J, Okubo S. Strategies towards robust and stable application layer multicast. : PACKET VIDEO 2007 - 16th International Packet Video Workshop. 2007. 4397048 https://doi.org/10.1109/PACKET.2007.4397048
    Kusumoto, Tetsuya ; Zhou, Su ; Katto, Jiro ; Okubo, Sakae. / Strategies towards robust and stable application layer multicast. PACKET VIDEO 2007 - 16th International Packet Video Workshop. 2007.
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