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    Performance study and optimization of cooperative diversity networks with co-channel interference

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    Type
    Article
    Authors
    Ikki, Salama Said
    Pandarakkottilil, Ubaidulla
    Aïssa, Sonia
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Physical Science and Engineering (PSE) Division
    Date
    2014-01
    Permanent link to this record
    http://hdl.handle.net/10754/563313
    
    Metadata
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    Abstract
    In this paper, we investigate the effect of co-channel interference on the performance of cooperative diversity networks with amplify-and-forward (AF) relaying. We consider both conventional and opportunistic relaying. First, we obtain a tight upper-bound for the equivalent signal-to-interference-plus-noise ratio (SINR) at the destination. Subsequently, the cumulative distribution function (CDF), probability density function (PDF) and moment generating function (MGF) of the effective SINR are determined based on the upper-bound. Expressions for the error probabilities in both conventional and opportunistic relaying are derived utilizing the statistical characterization of the effective SINR. We also derive an approximate PDF of the equivalent instantaneous SINR at the destination. This leads to a simple and general asymptotic error probability expression which facilitates better insight into the effect of different system parameters on the error probability. Furthermore, we investigate the problem of optimum resource allocation in the network aiming at improving performance in the presence of resource constraints. We present numerical results that illustrate the excellent match between the analytical results and the simulation results, and the performance enhancement resulting from the proposed optimal resource allocation. © 2014 IEEE.
    Citation
    Ikki, S. S., Ubaidulla, P., & Aissa, S. (2014). Performance Study and Optimization of Cooperative Diversity Networks with Co-Channel Interference. IEEE Transactions on Wireless Communications, 13(1), 14–23. doi:10.1109/twc.2013.061413.120509
    Sponsors
    This work was supported by a Discovery Accelerator Supplement (DAS) Grant from the Natural Sciences and Engineering Research Council (NSERC) of Canada.
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    IEEE Transactions on Wireless Communications
    DOI
    10.1109/TWC.2013.061413.120509
    ae974a485f413a2113503eed53cd6c53
    10.1109/TWC.2013.061413.120509
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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