• DocumentCode
    1342994
  • Title

    Time-frequency training OFDM

  • Author

    Dai, Lin ; Wang, Zhen

  • Author_Institution
    Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
  • Volume
    47
  • Issue
    20
  • fYear
    2011
  • Firstpage
    1128
  • Lastpage
    1130
  • Abstract
    A novel transmission scheme called time-frequency training OFDM (TFT-OFDM) is presented, whereby time-domain training sequence and frequency-domain grouped pilots are used for the joint time-frequency channel estimation. The pilots only occupy about 1% of the used subcarriers, and the complex interference cancellation could be avoided. As a result, TFT-OFDM simultaneously achieves high spectral efficiency and reliable performance over fast fading channels.
  • Keywords
    OFDM modulation; channel estimation; fading channels; interference suppression; OFDM; complex interference cancellation; fast fading channel; frequency-domain grouped pilot; spectral efficiency; subcarrier; time-domain training sequence; time-frequency channel estimation; transmission scheme;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el.2011.2643
  • Filename
    6036058
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1342994