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Thread: Handover between Macrocell and Femtocell for UMTS based Networks

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    Default Handover between Macrocell and Femtocell for UMTS based Networks

    Handover between Macrocell and Femtocell for
    UMTS based Network
    s

    Abstract The femtocell networks that use home base station
    and existing xDSL or other cable line as backhaul connectivity
    can fulfill the upcoming demand of high data rate for wireless
    communication system as well as can extend the coverage area.
    Hence the modified handover procedure for existing networks is
    needed to support the macrocell/femtocell integrated network.
    Some modifications of existing network and protocol
    architecture for the integration of femtocell networks with the
    existing UMTS based macrocell networks are essential. These
    modifications change the signal flow for handover procedures
    due to different 2-tier cell (macrocell and femtocell) environment.
    The measurement of signal-to-interference ratio parameter
    should be considered for handover between macrocell and
    femtocell. A frequent and unnecessary handover is another
    problem for hierarchical network environment that must be
    optimized to improve the performance of macrocell/femtocell
    integrated network.
    In this paper, firstly we propose the concentrator based and
    without concentrator based femtocell network architecture.
    Then we present the signal flow with appropriate parameters for
    the handover between 3GPP UMTS based macrocell and
    femtocell networks. A scheme for unnecessary handoff
    minimization is also presented in this paper. We simulate the
    proposed handover optimization scheme to validate the
    performance.
    Attached Files Attached Files

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