Advanced

Linear MMSE estimation of time-frequency variant channels for MIMO-OFDM systems

Salvo Rossi, Pierluigi; Müller, Ralf R. and Edfors, Ove LU (2011) In Signal Processing 91(5). p.1157-1167
Abstract
This paper proposes two low-complexity two-dimensional channel estimators for MIMO-OFDM systems derived from a joint time–frequency channel estimator. The estimators exploit both time and frequency correlations of the wireless channel via use of Slepian-basis expansions. The computational saving comes from replacing a two-dimensional Slepian-basis expansion with two serially concatenated one-dimensional Slepian-basis expansions. Performance in terms of normalized mean square error (NMSE) vs. signal-to-noise ratio (SNR) is analyzed via numerical simulations and compared with the original estimator. The analysis of the performance takes into account the impact of both system and channel parameters. The estimators are finally tested when used... (More)
This paper proposes two low-complexity two-dimensional channel estimators for MIMO-OFDM systems derived from a joint time–frequency channel estimator. The estimators exploit both time and frequency correlations of the wireless channel via use of Slepian-basis expansions. The computational saving comes from replacing a two-dimensional Slepian-basis expansion with two serially concatenated one-dimensional Slepian-basis expansions. Performance in terms of normalized mean square error (NMSE) vs. signal-to-noise ratio (SNR) is analyzed via numerical simulations and compared with the original estimator. The analysis of the performance takes into account the impact of both system and channel parameters. The estimators are finally tested when used within the loop of an iterative receiver for MIMO-OFDM systems. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
MIMO-OFDM systems, Iterative receivers
in
Signal Processing
volume
91
issue
5
pages
1157 - 1167
publisher
Elsevier
external identifiers
  • wos:000287905700010
  • scopus:79551487573
ISSN
0165-1684
DOI
10.1016/j.sigpro.2010.10.017
project
Radiosystem: NORDITE/WILATI - WIreless LANs with high Throughput in Interference-limited environments (VINNOVA, AM/FT/OE)
language
English
LU publication?
yes
id
2596c0d1-18c7-43ec-af93-99e74ef8bb95 (old id 1728634)
date added to LUP
2010-11-23 13:48:49
date last changed
2017-01-01 06:20:12
@article{2596c0d1-18c7-43ec-af93-99e74ef8bb95,
  abstract     = {This paper proposes two low-complexity two-dimensional channel estimators for MIMO-OFDM systems derived from a joint time–frequency channel estimator. The estimators exploit both time and frequency correlations of the wireless channel via use of Slepian-basis expansions. The computational saving comes from replacing a two-dimensional Slepian-basis expansion with two serially concatenated one-dimensional Slepian-basis expansions. Performance in terms of normalized mean square error (NMSE) vs. signal-to-noise ratio (SNR) is analyzed via numerical simulations and compared with the original estimator. The analysis of the performance takes into account the impact of both system and channel parameters. The estimators are finally tested when used within the loop of an iterative receiver for MIMO-OFDM systems.},
  author       = {Salvo Rossi, Pierluigi and Müller, Ralf R. and Edfors, Ove},
  issn         = {0165-1684},
  keyword      = {MIMO-OFDM systems,Iterative receivers},
  language     = {eng},
  number       = {5},
  pages        = {1157--1167},
  publisher    = {Elsevier},
  series       = {Signal Processing},
  title        = {Linear MMSE estimation of time-frequency variant channels for MIMO-OFDM systems},
  url          = {http://dx.doi.org/10.1016/j.sigpro.2010.10.017},
  volume       = {91},
  year         = {2011},
}