Hybrid femtocell resource allocation strategy in fractional frequency reuse

Azwan Mahmud, Khairi Ashour Hamdi

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    Heterogeneous networks consisting of small cells (e.g. femtocells) are capable of achieving high capacity and improving indoor cellular coverage area, while the fractional frequency reuse (FFR) scheme has been proposed for upcoming and future cellular systems to improve spectral efficiency in cellular OFDM networks. In two-tier networks of macrocells layered with femtocells, the resource allocation will most likely be sharing the same licensed spectrum. In this paper, we formulate a simple femtocells resource allocation strategies that allows a femtocells base station (FBS) to allocate more resources (co-channel) in high usage areas such as commercial FBS (cFBS) and orthogonal resource allocation for randomly deployed home user FBS (hFBS). We analyze our strategy in a multi-cell systems using area spectral efficiency (ASE) in composite fading consisting of Nakagami-m fading, path-loss and log-normal shadowing. Analytical and simulation results show that our simple resource allocation strategies are able to reduce inter-tier interferences and to offer an improvement in the overall spectral efficiency of the two-tier systems. © 2013 IEEE.
    Original languageEnglish
    Title of host publicationIEEE Wireless Communications and Networking Conference, WCNC|IEEE Wireless Commun. Networking Conf. WCNC
    Pages2283-2288
    Number of pages5
    DOIs
    Publication statusPublished - 2013
    Event2013 IEEE Wireless Communications and Networking Conference, WCNC 2013 - Shanghai
    Duration: 1 Jul 2013 → …

    Conference

    Conference2013 IEEE Wireless Communications and Networking Conference, WCNC 2013
    CityShanghai
    Period1/07/13 → …

    Keywords

    • Fading

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