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Iterative methods for cancellation of intercarrier interference in OFDM systems

Molisch, Andreas LU ; Toeltsch, Martin and Vermani, Sameer (2007) In IEEE Transactions on Vehicular Technology 56(4). p.2158-2167
Abstract
We consider orthogonal frequency-division multiplexing systems with intercarrier interference (ICI) due to insufficient cyclic prefix and/or temporal variations. Intersymbol interference (ISI) and ICI lead to an error floor in conventional receivers. We suggest two techniques for the equalization of ICI. The first, called "operator-perturbation technique" is an iterative technique for the inversion of a linear system of equations. Alternatively, we show that serial or parallel interference cancellation can be used to drastically reduce the error floor. Simulations show that, depending on the SNR and the origin of the ICI, one of the schemes performs best. In all cases, our schemes lead to a drastic reduction of the bit error rate.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
orthogonal frequency-division multiplexing (OFDM), iterative algorithms, intersymbol interference (ISI), cancellation, interference, cyclic prefix (CP), intercarrier interference (ICI)
in
IEEE Transactions on Vehicular Technology
volume
56
issue
4
pages
2158 - 2167
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • wos:000248282200022
  • scopus:34547895517
ISSN
1939-9359
DOI
10.1109/TVT.2007.897628
language
English
LU publication?
yes
id
6db71e31-924a-4b20-af02-e6890ed3fc86 (old id 648092)
date added to LUP
2007-12-18 11:54:29
date last changed
2017-09-17 04:49:34
@article{6db71e31-924a-4b20-af02-e6890ed3fc86,
  abstract     = {We consider orthogonal frequency-division multiplexing systems with intercarrier interference (ICI) due to insufficient cyclic prefix and/or temporal variations. Intersymbol interference (ISI) and ICI lead to an error floor in conventional receivers. We suggest two techniques for the equalization of ICI. The first, called "operator-perturbation technique" is an iterative technique for the inversion of a linear system of equations. Alternatively, we show that serial or parallel interference cancellation can be used to drastically reduce the error floor. Simulations show that, depending on the SNR and the origin of the ICI, one of the schemes performs best. In all cases, our schemes lead to a drastic reduction of the bit error rate.},
  author       = {Molisch, Andreas and Toeltsch, Martin and Vermani, Sameer},
  issn         = {1939-9359},
  keyword      = {orthogonal frequency-division multiplexing (OFDM),iterative algorithms,intersymbol interference (ISI),cancellation,interference,cyclic prefix (CP),intercarrier interference (ICI)},
  language     = {eng},
  number       = {4},
  pages        = {2158--2167},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Transactions on Vehicular Technology},
  title        = {Iterative methods for cancellation of intercarrier interference in OFDM systems},
  url          = {http://dx.doi.org/10.1109/TVT.2007.897628},
  volume       = {56},
  year         = {2007},
}