Decision-directed fine synchronization in OFDM systems

Kai Shi, Erchin Serpedin, Philippe Ciblat

Research output: Contribution to journalArticle

98 Citations (Scopus)

Abstract

A new decision-directed (DD) synchronization scheme is proposed for joint estimation of carrier frequency offset (CFO) and sampling clock frequency offset (SFO) in orthogonal frequency-division multiplexing (OFDM) systems. By exploiting the hard decisions, we report accurate estimators of residual CFO and small SFO. The performance analysis and simulation results indicate that the proposed novel DD scheme achieves much better performance than the conventional pilot-based schemes in both additive white Gaussian noise and frequency-selective channels.

Original languageEnglish
Pages (from-to)408-412
Number of pages5
JournalIEEE Transactions on Communications
Volume53
Issue number3
DOIs
Publication statusPublished - 1 Mar 2005

Keywords

  • Carrier frequency offset (CFO)
  • Fast fourier transform (FFT)
  • Orthogonal frequency-division multiplexing (OFDM)
  • Sampling clock frequency offset (SFO)
  • Synchronization

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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