• DocumentCode
    2989372
  • Title

    MIMO broadcast channel optimization under general linear constraints

  • Author

    Huh, Hoon ; Papadopoulos, Helene ; Caire, Giuseppe

  • Author_Institution
    Univ. of Southern California, Los Angeles, CA, USA
  • fYear
    2009
  • fDate
    June 28 2009-July 3 2009
  • Firstpage
    2664
  • Lastpage
    2668
  • Abstract
    The optimization of the transmit parameters (power allocation and steering vectors) for the MIMO BC under general linear constraints is treated under the optimal DPC coding strategy and the simple suboptimal linear zero-forcing beamforming strategy. In the case of DPC, we show that ¿SINR duality¿ and ¿min-max duality¿ yield the same dual MAC problem, and compare two alternatives for its efficient solution. In the case of zero-forcing beamforming, we provide a new efficient algorithm based on the direct optimization of a generalized inverse matrix. In both cases, the algorithms presented here address the problems in the most general form and can be applied to special cases previously considered, such as per-antenna and per-group of antennas power constraints, ¿forbidden interference direction¿ constraints, or any combination thereof.
  • Keywords
    MIMO communication; broadcast channels; differential pulse code modulation; optimisation; MIMO; broadcast channel optimization; general linear constraints; generalized inverse matrix; suboptimal linear zero-forcing beamforming; AWGN; Array signal processing; Broadcasting; Constraint optimization; Directive antennas; Interference constraints; Laboratories; MIMO; Transmitters; Vectors;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Information Theory, 2009. ISIT 2009. IEEE International Symposium on
  • Conference_Location
    Seoul
  • Print_ISBN
    978-1-4244-4312-3
  • Electronic_ISBN
    978-1-4244-4313-0
  • Type

    conf

  • DOI
    10.1109/ISIT.2009.5205911
  • Filename
    5205911