In this paper we propose a novel call admission control scheme named overlap area assisted new call blocking scheme (NCBS-OA) for High Altitude Platform (HAP) based communications systems, which utilizes both the geographical information and the overlap area to intelligently decide when to block a new call to help avoid possible handover failure. An approximate analytical model is derived to estimate the new call blocking performance of the new scheme, which is verified by simulation results. Research results show that the NCBS-OA can improve the new call blocking probability significantly (by a minimum of 25% for the system model with the parameter values chosen) while maintaining a zero handover call dropping probability seen with the time-based channel reservation algorithm (TCRA), and that the greater the cell radius and the more the number of connections considered in the overlap area of a virtual cell, the better the new call blocking performance.


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    Titel :

    Overlap Area Assisted Call Admission Control Scheme for Communications System


    Beteiligte:
    Shufeng Li, (Autor:in) / Grace, D. (Autor:in) / Yanchen Liu, (Autor:in) / Jibo Wei, (Autor:in) / Dongtang Ma, (Autor:in)


    Erscheinungsdatum :

    01.10.2011


    Format / Umfang :

    2192728 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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