• DocumentCode
    3631204
  • Title

    Iterative EM-Based Channel Estimation for STBC-OFDM

  • Author

    Ilhan Basturk;Berna Ozbek

  • Author_Institution
    Electr. & Electron. Eng. Dept., Izmir Inst. of Technol. Urla, Izmir
  • fYear
    2009
  • Firstpage
    1
  • Lastpage
    6
  • Abstract
    In this paper, an iterative EM based channel estimation algorithm is studied for STBC-OFDM systems. Compared to the time domain EM based channel estimation algorithm which needs matrix inversion, a frequency domain EM based channel estimation algorithm is proposed by estimating the channel coefficients for each subcarrier. The proposed channel estimation algorithm decreased the complexity without sacrificing the performance. The time domain and proposed frequency domain EM based channel estimation algorithms are compared in terms of bit error rate (BER), mean square error (MSE) and the number of iterations used in the EM algorithm.
  • Keywords
    "Channel estimation","OFDM","Iterative algorithms","Fading","Frequency domain analysis","Transmitting antennas","Receiving antennas","Bit error rate","Intersymbol interference","System performance"
  • Publisher
    ieee
  • Conference_Titel
    Wireless Communications and Networking Conference, 2009. WCNC 2009. IEEE
  • ISSN
    1525-3511
  • Print_ISBN
    978-1-4244-2947-9
  • Type

    conf

  • DOI
    10.1109/WCNC.2009.4917765
  • Filename
    4917765
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3631204