• DocumentCode
    3586357
  • Title

    Area-efficient FFT processors for OFDM systems

  • Author

    Sung Kyung Shin ; Myung Hoon Sunwoo

  • Author_Institution
    Sch. of Electr. & Comput. Eng., Ajou Univ., Suwon, South Korea
  • fYear
    2014
  • Firstpage
    268
  • Lastpage
    269
  • Abstract
    This paper proposes an area-efficient 128-point fast Fourier transform (FFT) processor for OFDM systems. The modified decomposition method and complex constant multiplier can reduce the number of twiddle factor multipliers and its ROMs. Compared with the existing FFT processor, the proposed processor can reduce the number of multipliers by 30% and the size of ROM by 62% respectively, without increase of delay elements.
  • Keywords
    OFDM modulation; fast Fourier transforms; read-only storage; OFDM system; ROM; area-efficient FFT processor; complex constant multiplier; fast Fourier transform processor; modified decomposition method; orthogonal frequency division multiplexing system; read only memory; twiddle factor multiplier; Delays; Hardware; OFDM; Random access memory; FFT; OFDM; mixed-radix; pipeline;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    SoC Design Conference (ISOCC), 2014 International
  • Type

    conf

  • DOI
    10.1109/ISOCC.2014.7087641
  • Filename
    7087641
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3586357