Frequency offset and symbol timing recovery in flat-fading channels: A cyclostationary approach

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Abstract

Two open-loop algorithms are developed for estimating jointly frequency offset and symbol timing of a linearly modulated waveform transmitted through a frequency-flat fading channel. The methods exploit the received signal's second-order cyclostationarity and with respect to existing solutions: 1) they take into account the presence of time-selective fading effects; 2) they do not need training data; 3) they do not rely on the Gaussian assumption of the complex equivalent low-pass channel process; and 4) they are tolerant to additive stationary noise of any color or distribution. Performance analysis of the proposed methods using Monte Carlo simulations unifications and comparisons with existing approaches are also reported.

Original languageEnglish (US)
Pages (from-to)400-411
Number of pages12
JournalIEEE Transactions on Communications
Volume46
Issue number3
DOIs
StatePublished - 1998

Bibliographical note

Funding Information:
Paper approved by E. Panayirci, the Editor for Synchronization and Equalization of the IEEE Communications Society. Manuscript received January 7, 1997; revised September 18, 1997. This work was supported by the National Science Foundation under Grant NSF-MIP 9 424 305. This paper was presented in part at the 1st IEEE Signal Processing Workshop on Wireless Communications, Paris, France, April 16–18, 1997.

Keywords

  • Cyclostationarity
  • Fading
  • Synchronization

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