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    Cooperative joint precoding in a downlink cellular system with shared relay: Design and performance evaluation

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    Type
    Article
    Authors
    Kwon, JaeWoo
    Park, Kihong cc
    Ko, Youngchai
    Yang, Hongchuan
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Date
    2012-10
    Permanent link to this record
    http://hdl.handle.net/10754/562351
    
    Metadata
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    Abstract
    In this paper, we investigate a relay enhanced cellular system, where a relay station is located in the overlap area served by two base stations. We propose cooperative joint precoding schemes for the downlink transmission of such relay enhanced cellular system to maximize the system capacity while minimizing the interference at both the relay station and the mobile stations. We formulate the optimization problems to maximize the system capacity and design the multiuser precoding vectors at each base station and the relay station. We quantify the ergodic rate performance of the proposed multiuser precoding schemes through statistical analysis. The extensively derived ergodic expressions will facilitate the accurate performance evaluation of the proposed transmission schemes. Numerical results show that the proposed schemes can effectively cancel the interference and improve the sum rate and the outage performance for cell edge users. © 2002-2012 IEEE.
    Citation
    Kwon, J.-W., Park, K.-H., Ko, Y.-C., & Yang, H.-C. (2012). Cooperative Joint Precoding in a Downlink Cellular System with Shared Relay: Design and Performance Evaluation. IEEE Transactions on Wireless Communications, 11(10), 3462–3473. doi:10.1109/twc.2012.083112.110923
    Sponsors
    This work was supported in part by the Seoul R&BD Program (WR 080951) and in part by a Korea University Grant. This paper was presented in part at the 7th International Wireless Communications and Mobile Computing Conference, Istanbul, Turkey, July 2011.
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    IEEE Transactions on Wireless Communications
    DOI
    10.1109/TWC.2012.083112.110923
    ae974a485f413a2113503eed53cd6c53
    10.1109/TWC.2012.083112.110923
    Scopus Count
    Collections
    Articles; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

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