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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
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
; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
[Host publication title missing]
conference name
International Conference on Communications
conference location
Vancouver, Canada
conference dates
1999-06-06 - 1999-06-10
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
2016-04-04 13:54:44
date last changed
2022-01-30 01:07:20
@inproceedings{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}},
  booktitle    = {{[Host publication title missing]}},
  language     = {{eng}},
  title        = {{Symbol time offset estimation in coherent OFDM systems}},
  url          = {{https://lup.lub.lu.se/search/files/6234783/1057027.pdf}},
  doi          = {{10.1109/ICC.1999.767990}},
  year         = {{1999}},
}