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ML estimation of time and frequency offset in OFDM systems

van De Beek, Jan-Jaap; Sandell, Magnus and Börjesson, Per Ola LU (1997) In IEEE Transactions on Signal Processing 45(7). p.1800-1805
Abstract
We present the joint maximum likelihood (ML) symbol-time and carrier-frequency offset estimator in orthogonal frequency-division multiplexing (OFDM) systems. Redundant information contained within the cyclic prefix enables this estimation without additional pilots. Simulations show that the frequency estimator may be used in a tracking mode and the time estimator in an acquisition mode.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
OFDM systems, frequency estimation, frequency division multiplexing, multiplexing, maximum likelihood estimation, synchronisation, carrier-frequency offset estimator, acquisition mode, cyclic prefix, tracking, orthogonal frequency-division, tracking mode, symbol-time estimator, maximum likelihood, redundant information, time offset
in
IEEE Transactions on Signal Processing
volume
45
issue
7
pages
1800 - 1805
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:0031191885
ISSN
1053-587X
language
English
LU publication?
yes
id
62b170cb-e101-4504-87c6-88e3dda2deb5 (old id 1055282)
date added to LUP
2008-04-08 11:00:32
date last changed
2017-11-19 04:03:55
@article{62b170cb-e101-4504-87c6-88e3dda2deb5,
  abstract     = {We present the joint maximum likelihood (ML) symbol-time and carrier-frequency offset estimator in orthogonal frequency-division multiplexing (OFDM) systems. Redundant information contained within the cyclic prefix enables this estimation without additional pilots. Simulations show that the frequency estimator may be used in a tracking mode and the time estimator in an acquisition mode.},
  author       = {van De Beek, Jan-Jaap and Sandell, Magnus and Börjesson, Per Ola},
  issn         = {1053-587X},
  keyword      = {OFDM systems,frequency estimation,frequency division multiplexing,multiplexing,maximum likelihood estimation,synchronisation,carrier-frequency offset estimator,acquisition mode,cyclic prefix,tracking,orthogonal frequency-division,tracking mode,symbol-time estimator,maximum likelihood,redundant information,time offset},
  language     = {eng},
  number       = {7},
  pages        = {1800--1805},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Transactions on Signal Processing},
  title        = {ML estimation of time and frequency offset in OFDM systems},
  volume       = {45},
  year         = {1997},
}