Multi-rate power-controlled link scheduling for mesh broadband wireless access networks

V Friderikos, K Papadaki, D Wisely, H Aghvami

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    Abstract

    The problem of multi-rate power-controlled collision-free scheduling in spatial time division multiple access (STDMA) wireless mesh networks is formulated as a mathematical program utilising cross layer information. As these mixed integer linear programs are intractable (NP-hard problems), optimal collision-free schedules can be found only for topologies consisting of a few nodes. To this end, approximation algorithms that are based on linear programming relaxation and randomised rounding are studied. The proposed framework, which aims to maximise the spatial timeslot reuse under predefined signal-to-interference noise ratio thresholds, is suitable for providing centralised scheduling in the mesh mode of the IEEE 802.16 standard. Performance aspects of the approximation algorithms under different scenarios are investigated
    Original languageEnglish
    Pages (from-to)909 - 914
    Number of pages6
    JournalIET Communications
    Volume1
    Issue number5
    DOIs
    Publication statusPublished - 2007

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