OFDM blind carrier offset estimation: ESPRIT

TÜRELİ M. S. U., Liu H., Zoltowski M.

IEEE TRANSACTIONS ON COMMUNICATIONS, cilt.48, sa.9, ss.1459-1461, 2000 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 48 Sayı: 9
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1109/26.870011
  • Dergi Adı: IEEE TRANSACTIONS ON COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1459-1461
  • Yıldız Teknik Üniversitesi Adresli: Hayır

Özet

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.