On approximating a multicast routing tree with multiple Quality-of-Service constraints

Jun Huang, Yoshiaki Tanaka, Yan Ma

    Research output: Contribution to journalArticle

    4 Citations (Scopus)


    Multicast routing with Quality-of-Service (QoS) guarantees is the key to efficient content distribution and sharing. Developing QoS-aware multicast routing algorithm is an important open topic. This paper investigates QoS-aware multicast routing problem with K constraints where K > 2. The contributions made in this paper include a heuristic that employs the concept of nonlinear combination to extend the existing well-known algorithm for fast computation of a QoS multicast tree, and a Fully Polynomial Time Approximation Scheme (FPTAS) to approximate a multicast routing tree with QoS guarantees. The theoretical analyses and simulations conducted on both algorithms show that the algorithms developed in this paper are general and flexible, thus are applicable to the various networking systems.

    Original languageEnglish
    Pages (from-to)2005-2012
    Number of pages8
    JournalIEICE Transactions on Communications
    Issue number6
    Publication statusPublished - 2012 Jun



    • Approximation algorithm
    • Heuristic
    • Multicast tree
    • Nonlinear combination
    • QoS routing

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Computer Networks and Communications
    • Software

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