A cross-layer model for video multicast based TCP-Adaptive FEC over heterogeneous networks

Ghaida A. AL-Suhail, Liansheng Tan, Rodney A. Kennedy

    Research output: Contribution to journalArticlepeer-review

    Abstract

    In this article, we present a simple cross-layer model that leads to the optimal throughput of multiple users for multicasting MPEG-4 video over a heterogeneous network. For heterogeneous wired-to-wireless network, at the last wireless hop there are bit errors associated with the link-layer packets that are arising in the wireless channel, in addition of overflow packet dropping over wired links. We employ a heuristic TCP function to optimize the cross-layer model of data link and physical (radio-link) layer. An adaptive Forward-Error-Correction (FEC) scheme is applied at the byte-level as well as at the packet-level. The corresponding optimal video quality can be evaluated at each client end. The results show that a server can significantly adapt to the bandwidth and FEC codes to maximize the video quality of service (QoS) in terms of temporal scaling when a maximum network throughputfor each client is reached. [Article copies are available for purchase from InfoSci-on-Demand.com]

    Original languageEnglish
    Pages (from-to)53-69
    Number of pages17
    JournalInternational Journal of Mobile Computing and Multimedia Communications
    Volume1
    Issue number1
    DOIs
    Publication statusPublished - 2009

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