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Symbol time offset estimation in coherent OFDM systems

Landström, Daniel LU ; Wilson, S.K.; van de Beek, J.J.; Ödling, Per LU and Börjesson, Per Ola LU (1999) International Conference on Communications In [Host publication title missing]
Abstract
This paper presents a symbol time offset estimator for coherent OFDM systems. This estimator exploits both the redundancy in the cyclic prefix and the pilot symbols used for channel estimation. The estimator is robust against frequency offsets and is suitable for use in dispersive channels. We base the estimator on the ML estimator for the AWGN channel. Simulations of an example system indicate a system performance as close as 0.3 dB to a perfectly synchronized system. Compared to an estimator not using pilots, our estimator's performance could allow a shorter cyclic prefix and thus a more spectrally efficient system
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
[Host publication title missing]
conference name
International Conference on Communications
external identifiers
  • Scopus:54249146222
DOI
10.1109/ICC.1999.767990
language
English
LU publication?
yes
id
b754033b-afb8-4291-b424-9c2b46c5cbb8 (old id 1056979)
date added to LUP
2008-04-11 13:41:43
date last changed
2016-10-13 04:58:30
@misc{b754033b-afb8-4291-b424-9c2b46c5cbb8,
  abstract     = {This paper presents a symbol time offset estimator for coherent OFDM systems. This estimator exploits both the redundancy in the cyclic prefix and the pilot symbols used for channel estimation. The estimator is robust against frequency offsets and is suitable for use in dispersive channels. We base the estimator on the ML estimator for the AWGN channel. Simulations of an example system indicate a system performance as close as 0.3 dB to a perfectly synchronized system. Compared to an estimator not using pilots, our estimator's performance could allow a shorter cyclic prefix and thus a more spectrally efficient system},
  author       = {Landström, Daniel and Wilson, S.K. and van de Beek, J.J. and Ödling, Per and Börjesson, Per Ola},
  language     = {eng},
  series       = {[Host publication title missing]},
  title        = {Symbol time offset estimation in coherent OFDM systems},
  url          = {http://dx.doi.org/10.1109/ICC.1999.767990},
  year         = {1999},
}