OFDM blind carrier offset estimation: ESPRIT

TÜRELİ M. S. U., Liu H., Zoltowski M.

IEEE TRANSACTIONS ON COMMUNICATIONS, vol.48, no.9, pp.1459-1461, 2000 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 48 Issue: 9
  • Publication Date: 2000
  • Doi Number: 10.1109/26.870011
  • Journal Name: IEEE TRANSACTIONS ON COMMUNICATIONS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1459-1461
  • Yıldız Technical University Affiliated: No

Abstract

In orthogonal frequency-division multiplex (OFDM) communications, the loss of orthogonality due to the carrier-frequency offset must be compensated before discrete Fourier transform-based demodulation can be performed. This paper proposes a new carrier offset estimation technique for OFDM communications over a frequency-selective fading channel. We exploit the intrinsic structure information of OFDM signals to derive a carrier offset estimator that offers the accuracy of a super resolution subspace method, ESPRIT.