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    Green Virtualization for Multiple Collaborative Cellular Operators

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    Type
    Article
    Authors
    Farooq, Muhammad Junaid cc
    Ghazzai, Hakim cc
    Yaacoub, Elias
    Kadri, Abdullah
    Alouini, Mohamed-Slim cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Date
    2017-06-05
    Online Publication Date
    2017-06-05
    Print Publication Date
    2017-09
    Permanent link to this record
    http://hdl.handle.net/10754/626787
    
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    Abstract
    This paper proposes and investigates a green virtualization framework for infrastructure sharing among multiple cellular operators whose networks are powered by a combination of conventional and renewable sources of energy. Under the proposed framework, the virtual network formed by unifying radio access infrastructures of all operators is optimized for minimum energy consumption by deactivating base stations (BSs) with low traffic loads. The users initially associated to those BSs are off-loaded to neighboring active ones. A fairness criterion for collaboration based on roaming prices is introduced to cover the additional energy costs incurred by host operators. The framework also ensures that any collaborating operator is not negatively affected by its participation in the proposed virtualization. A multi-objective linear programming problem is formulated to achieve energy and cost efficiency of the networks' operation by identifying the set of inter-operator roaming prices. For the case when collaboration among all operators is infeasible due to profitability, capacity, or power constraints, an iterative algorithm is proposed to determine the groups of operators that can viably collaborate. Results show significant energy savings using the proposed virtualization as compared to the standalone case. Moreover, collaborative operators exploiting locally generated renewable energy are rewarded more than traditional ones.
    Citation
    Farooq MJ, Ghazzai H, Yaacoub E, Kadri A, Alouini M-S (2017) Green Virtualization for Multiple Collaborative Cellular Operators. IEEE Transactions on Cognitive Communications and Networking 3: 420–434. Available: http://dx.doi.org/10.1109/tccn.2017.2712133.
    Sponsors
    This work was made possible by grant NPRP # 6-001-2-001 from the Qatar National Research Fund (a member of The Qatar Foundation). The associate editor coordinating the review of this paper and approving it for publication was L. DaSilva.
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    IEEE Transactions on Cognitive Communications and Networking
    DOI
    10.1109/tccn.2017.2712133
    arXiv
    1706.00107
    Additional Links
    http://ieeexplore.ieee.org/document/7938749/
    http://arxiv.org/pdf/1706.00107
    ae974a485f413a2113503eed53cd6c53
    10.1109/tccn.2017.2712133
    Scopus Count
    Collections
    Articles; Electrical and Computer Engineering Program; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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