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    A Suboptimal Scheme for Multi-User Scheduling in Gaussian Broadcast Channels

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    Type
    Article
    Authors
    Zafar, Ammar cc
    Shaqfeh, Mohammad
    Alouini, Mohamed-Slim cc
    Alnuweiri, Hussein
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering
    Electrical Engineering Program
    Date
    2015-02
    Permanent link to this record
    http://hdl.handle.net/10754/317597
    
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    Abstract
    This work proposes a suboptimal multi-user scheduling scheme for Gaussian broadcast channels which improves upon the classical single user selection, while considerably reducing complexity as compared to the optimal superposition coding with successful interference cancellation. The proposed scheme combines the two users with the maximum weighted instantaneous rate using superposition coding. The instantaneous rate and power allocation are derived in closed-form, while the long term rate of each user is derived in integral form for all channel distributions. Numerical results are then provided to characterize the prospected gains of the proposed scheme.
    Citation
    Zafar, A., Shaqfeh, M., Alouini, M.-S., & Alnuweiri, H. (2015). A Suboptimal Scheme for Multi-User Scheduling in Gaussian Broadcast Channels. IEEE Signal Processing Letters, 22(2), 136–140. doi:10.1109/lsp.2014.2350776
    Sponsors
    This work was supported by YSREP Grant 2-011-2-002 from the Qatar National Research Fund (a member of Qatar Foundation). The work of A. Zafar was supported in part by the King Abdullah University of Science and Technology (KAUST). The work of M.-S. Alouini was supported by KAUST. The statements made herein are solely the responsibility of the authors.
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    IEEE Signal Processing Letters
    DOI
    10.1109/LSP.2014.2350776
    Additional Links
    https://ieeexplore.ieee.org/document/6880786/
    https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6880786
    ae974a485f413a2113503eed53cd6c53
    10.1109/LSP.2014.2350776
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