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    Modeling and performance analysis of cooperative communications in cognitive radio networks

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    Type
    Conference Paper
    Authors
    Khabazian, Mehdi
    Aissa, Sonia
    KAUST Department
    Physical Science and Engineering (PSE) Division
    Date
    2011-09
    Permanent link to this record
    http://hdl.handle.net/10754/564434
    
    Metadata
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    Abstract
    In this paper, we study the performance of a network comprised of a primary user and a secondary user with the latter having cognitive radio capabilities. The secondary node uses the empty slots of the primary user to transmit its own traffic as well as to relay the primary's traffic in a cooperative fashion. Taking a queuing theory approach, we find the probability generating functions of the numbers of packets in the queues of the primary and secondary users. Subsequently, we determine a number of performance measures such as the average queues' lengths, average packet transmission delays and secondary user's queue surcharge due to cooperation. The numerical results along with the simulations show the importance of controlling the number of primary user packets admitted by the secondary user for cooperation and its impacts on the other performance measures. © 2011 IEEE.
    Citation
    Khabazian, M., & Aissa, S. (2011). Modeling and performance analysis of cooperative communications in cognitive radio networks. 2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications. doi:10.1109/pimrc.2011.6140032
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications
    Conference/Event name
    2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'11
    ISBN
    9781457713484
    DOI
    10.1109/PIMRC.2011.6140032
    ae974a485f413a2113503eed53cd6c53
    10.1109/PIMRC.2011.6140032
    Scopus Count
    Collections
    Conference Papers; Physical Science and Engineering (PSE) Division

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