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    Efficacy of coverage radius-based power control scheme for interference mitigation in femtocells

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    Authors
    Kpojime, Harold Orduen
    Safdar, Ghazanfar Ali
    Affiliation
    University of Bedfordshire
    Issue Date
    2014-04
    Subjects
    adaptive control
    femtocellular radio
    interference suppression
    mobility management (mobile radio)
    power control
    femtocells
    
    Metadata
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    Abstract
    A novel coverage radius-based downlink power control scheme to mitigate interference in densely deployed femtocells is presented. A femtocell access point (FAP) self-update algorithm is implemented, which determines the coverage radius of the femtocell with respect to its farthest served femtocell user equipment (FUE). Based on varying coverage radii, a max/min function is used to adjust the downlink transmit power value of a FAP. System-level simulations are performed to compare the performance of the presented scheme with the existing fixed coverage radius schemes. Even though the proposed scheme results in better cross-tier signal to interference plus noise ratio (SINR) values, due to a low co-tier SINR it is found that the efficacy of adaptive power control schemes based on the pilot power of a FAP is less significant if FUEs are located close to the neighbouring FAPs in densely deployed urban femtocells.
    Citation
    Kpojime, H.O., Safdar, G.A. (2014) 'Efficacy of coverage radius-based power control scheme for interference mitigation in femtocells', Electronics Letters , 50(8):639-641
    Publisher
    IEEE
    Journal
    Electronics Letters
    URI
    http://hdl.handle.net/10547/336095
    DOI
    10.1049/el.2014.0557
    Additional Links
    http://digital-library.theiet.org/content/journals/10.1049/el.2014.0557
    Type
    Article
    Language
    en
    ISSN
    0013-5194
    1350-911X
    ae974a485f413a2113503eed53cd6c53
    10.1049/el.2014.0557
    Scopus Count
    Collections
    Centre for Wireless Research (CWR)

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