A combined timing and frequency synchronization and channel estimation for OFDM

Hlaing Minn, Vijay K. Bhargava, Khaled Letaief

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

This letter addresses training-signal-based combined timing and frequency synchronization and channel estimation for orthogonal frequency-division multiplexing systems. The proposed scheme consists of two stages. At the first stage, coarse timing and frequency-offset estimates are obtained. Based on these estimates, a (coarse) channel response estimate is obtained. The timing and frequency-offset estimates at the second stage are obtained by maximum-likelihood (ML) realization based on a sliding observation vector. Then ML channel estimation is performed. A means of complexity reduction by an adaptive scheme is also presented. The simulation results show that the proposed combined approach performs quite well, and circumvents the problem of mismatch among individual synchronization tasks.

Original languageEnglish
Pages (from-to)416-422
Number of pages7
JournalIEEE Transactions on Communications
Volume54
Issue number3
DOIs
Publication statusPublished - Mar 2006
Externally publishedYes

Fingerprint

Channel estimation
Orthogonal frequency division multiplexing
Maximum likelihood
Synchronization

Keywords

  • Channel estimation
  • Frequency synchronization
  • Maximum-likelihood (ML) estimation
  • Orthogonal frequency-division multiplexing (OFDM)
  • Timing synchronization

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

A combined timing and frequency synchronization and channel estimation for OFDM. / Minn, Hlaing; Bhargava, Vijay K.; Letaief, Khaled.

In: IEEE Transactions on Communications, Vol. 54, No. 3, 03.2006, p. 416-422.

Research output: Contribution to journalArticle

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