• DocumentCode
    2878403
  • Title

    Cramer-Rao bound for blind, semi-blind and non-blind channel estimation in OFDM systems

  • Author

    Zi Yi ; Cai, Yue-Ming

  • Author_Institution
    Nanjing Inst. of Commun. Eng., China
  • Volume
    1
  • fYear
    2005
  • fDate
    12-14 Oct. 2005
  • Firstpage
    523
  • Lastpage
    526
  • Abstract
    In the estimation theory, the Cramer-Rao bound (CRB) is a very powerful theory tool. In this paper, based on the matrix formulation of OFDM signals, the CRB for blind, semi-blind and non-blind channel estimation in OFDM systems is derived. We simulate the performance of the channel estimation in two different OFDM systems such as CP-OFDM and ZP-OFDM. In the simulations, we validate the correctness of the CRB and evaluate some channel estimation methods by using the CRB.
  • Keywords
    OFDM modulation; channel estimation; Cramer-Rao bound; OFDM systems; blind channel estimation; nonblind channel estimation; semiblind channel estimation; Bandwidth; Blind equalizers; Channel estimation; Convergence; Estimation theory; Frequency-selective fading channels; Laboratories; Mobile communication; OFDM; Power engineering and energy;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Communications and Information Technology, 2005. ISCIT 2005. IEEE International Symposium on
  • Print_ISBN
    0-7803-9538-7
  • Type

    conf

  • DOI
    10.1109/ISCIT.2005.1566908
  • Filename
    1566908
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2878403