An adaptive scheduling scheme for fair bandwidth allocation

Wei Liu, Wenqing Cheng, Jianhua He, Chunhui Le, Zongkai Yang

    Research output: Chapter in Book/Report/Conference proceedingChapter


    Class-based service differentiation is provided in DiffServ networks. However, this differentiation will be disordered under dynamic traffic loads due to the fixed weighted scheduling. An adaptive weighted scheduling scheme is proposed in this paper to achieve fair bandwidth allocation among different service classes. In this scheme, the number of active flows and the subscribed bandwidth are estimated based on the measurement of local queue metrics, then the scheduling weights of each service class are adjusted for the per-flow fairness of excess bandwidth allocation. This adaptive scheme can be combined with any weighted scheduling algorithm. Simulation results show that, comparing with fixed weighted scheduling, it effectively improve the fairness of excess bandwidth allocation.
    Original languageEnglish
    Title of host publicationNetwork architectures, management, and applications II
    EditorsS.J. Ben Yoo, Gee-Kung Chang, Guangcheng Li, Kwok-wai Cheung
    Place of PublicationBellingham, WA (US)
    PublisherSociety of Photo-optical Instrumentation Engineers
    Number of pages9
    Publication statusPublished - 2005
    EventNetwork Architectures, Management, and Applications II: Asia-Pacific Optical Communications - Beijing, China
    Duration: 7 Nov 200411 Nov 2004

    Publication series

    NameSPIE proceedings


    ConferenceNetwork Architectures, Management, and Applications II


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