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    Joint opportunistic scheduling and network coding for bidirectional relay channel

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    Type
    Conference Paper
    Authors
    Shaqfeh, Mohammad
    Zafar, Ammar cc
    Alnuweiri, Hussein M.
    Alouini, Mohamed-Slim cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Communication Theory Lab
    Date
    2013-07
    Permanent link to this record
    http://hdl.handle.net/10754/564766
    
    Metadata
    Show full item record
    Abstract
    In this paper, we consider a two-way communication system in which two users communicate with each other through an intermediate relay over block-fading channels. We investigate the optimal opportunistic scheduling scheme in order to maximize the long-term average transmission rate in the system assuming symmetric information flow between the two users. Based on the channel state information, the scheduler decides that either one of the users transmits to the relay, or the relay transmits to a single user or broadcasts to both users a combined version of the two users' transmitted information by using linear network coding. We obtain the optimal scheduling scheme by using the Lagrangian dual problem. Furthermore, in order to characterize the gains of network coding and opportunistic scheduling, we compare the achievable rate of the system versus suboptimal schemes in which the gains of network coding and opportunistic scheduling are partially exploited. © 2013 IEEE.
    Citation
    Shaqfeh, M., Zafar, A., Alnuweiri, H., & Alouini, M.-S. (2013). Joint opportunistic scheduling and network coding for bidirectional relay channel. 2013 IEEE International Symposium on Information Theory. doi:10.1109/isit.2013.6620442
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    2013 IEEE International Symposium on Information Theory
    Conference/Event name
    2013 IEEE International Symposium on Information Theory, ISIT 2013
    ISBN
    9781479904464
    DOI
    10.1109/ISIT.2013.6620442
    ae974a485f413a2113503eed53cd6c53
    10.1109/ISIT.2013.6620442
    Scopus Count
    Collections
    Conference Papers; Electrical and Computer Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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