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    On distributed and coordinated resource allocation for interference mitigation in self-organizing LTE networks

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    Authors
    Lopez-Perez, David
    Chu, Xiaoli
    Vasilakos, Athanasios V.
    Claussen, Holger
    Affiliation
    Bell-Laboratories
    University of Sheffield
    National Technical University of Athens
    Issue Date
    2013-08
    Subjects
    wireless networking
    wireless networks
    
    Metadata
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    Abstract
    We propose a distributed and coordinated radio resource allocation algorithm for orthogonal frequency division multiple access (OFDMA)-based cellular networks to self-organize efficient and stable frequency reuse patterns. In the proposed radio resource allocation algorithm, each cell independently and dynamically allocates modulation and coding scheme (MCS), resource block (RB), and transmit power to its users in a way that its total downlink (DL) transmit power is minimized, while users' throughput demands are satisfied. Moreover, each cell informs neighboring cells of the RBs that have been scheduled for its cell-edge users' DL transmissions through message passing. Accordingly, the neighboring cells abstain from assigning high transmit powers to the specified RBs. Extensive simulation results attempt to demonstrate that DL power control on a per-RB basis may play a key role in future networks, and show that the distributed minimization of DL transmit power at each cell, supported by intercell interference coordination, is able to provide a 20% improvement of network throughput, considerably reduce the number of user outages, and significantly enhance spatial reuse, as compared to cutting-edge resource allocation schemes.
    Citation
    Lopez-Perez, D. et al (2013) 'On Distributed and Coordinated Resource Allocation for Interference Mitigation in Self-Organizing LTE Networks' IEEE/ACM Transactions on Networking 21 (4):1145
    Publisher
    ACM
    Journal
    IEEE/ACM Transactions on Networking
    URI
    http://hdl.handle.net/10547/593686
    DOI
    10.1109/TNET.2012.2218124
    Additional Links
    http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=6361255
    http://dl.acm.org/citation.cfm?id=2525578
    Type
    Article
    Language
    en
    ISSN
    1063-6692
    1558-2566
    ae974a485f413a2113503eed53cd6c53
    10.1109/TNET.2012.2218124
    Scopus Count
    Collections
    Centre for Research in Distributed Technologies (CREDIT)

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