A high-resolution frequency-offset estimator for OFDM-based WLAN systems

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Orthogonal frequency division multiplexing (OFDM) has been adopted in the physical layer of IEEE802.11a WLAN standard. In this Letter, a high-resolution frequency-offset estimation scheme is presented for the OFDM-based WLAN. The scheme efficiently exploits the features of the 802.11a preamble for high-resolution estimation of frequency-offset. Simulation results indicate that the algorithm is much superior to the conventional scheme for frequency-offset estimation in the 802.11a WLAN.

Original languageEnglish
Pages (from-to)4655-4658
Number of pages4
JournalIEICE Transactions on Communications
Issue number12
StatePublished - Dec 2005


  • Estimation
  • Frequency-offset
  • OFDM
  • WLAN


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