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    Interference Management in Full-Duplex Cellular Networks with Partial Spectrum Overlap

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    Type
    Article
    Authors
    Randrianantenaina, Itsikiantsoa cc
    Dahrouj, Hayssam cc
    Elsawy, Hesham cc
    Alouini, Mohamed-Slim cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Date
    2017-03-31
    Online Publication Date
    2017-03-31
    Print Publication Date
    2017
    Permanent link to this record
    http://hdl.handle.net/10754/623092
    
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    Abstract
    Full-duplex (FD) communication is promoted to double the spectral efficiency when compared to the halfduplex (HD) counterpart. In the context of cellular networks, however, FD communication exacerbates the aggregate uplink and downlink interference, which diminishes the foreseen FD gains. This paper considers a flexible duplex system, denoted by -duplex (-D) system, wherein a fine-grained bandwidth control for each uplink/downlink channel pair in each base station (BS) is allowed, which also leads to partial spectrum overlap between the uplink and downlink channels. The paper addresses the resulting interference management problem by maximizing a network-wide rate-based utility function subject to uplink/downlink power constraints, so as to determine userto- BS association, user-to-channel scheduling, the UL and DL transmit powers, and the fraction of spectrum overlap between UL and DL for every user, under the assumption that the number of available channels and users are equal. The paper solves such a non-convex mixed-integer optimization problem in an iterative way by decoupling the problem into several subproblems. Particularly, the user-to-BS association problem is solved using a matching algorithm that is a generalization of the stable marriage problem. The scheduling problem is solved by iterative Hungarian algorithm. The power and spectrum overlap problem is solved by successive convex approximation. The proposed iterative strategy guarantees an efficient one-toone user to BS and channel assignment. It further provides optimized flexible duplexing and power allocation schemes for all transceivers. Simulations results show appreciable gains when comparing the proposed solution to different schemes from the literature.
    Citation
    Randrianantenaina I, Dahrouj H, Elsawy H, Alouini M-S (2017) Interference Management in Full-Duplex Cellular Networks with Partial Spectrum Overlap. IEEE Access: 1–1. Available: http://dx.doi.org/10.1109/ACCESS.2017.2687081.
    Sponsors
    H. Dahrouj would like to thank Effat University in Jeddah, Saudi Arabia, for funding the research reported in this paper through the Research and Consultancy Institute.
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    IEEE Access
    DOI
    10.1109/ACCESS.2017.2687081
    Additional Links
    http://ieeexplore.ieee.org/document/7888913/
    ae974a485f413a2113503eed53cd6c53
    10.1109/ACCESS.2017.2687081
    Scopus Count
    Collections
    Articles; Electrical and Computer Engineering Program; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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