Iterative soft-Kalman channel estimation ...
Document type :
Article dans une revue scientifique
Title :
Iterative soft-Kalman channel estimation for fast time-varying MIMO-OFDM channels
Author(s) :
Simon, E.P. [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Khalighi, M.A. [Auteur]
GSM [GSM]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Khalighi, M.A. [Auteur]
GSM [GSM]
Journal title :
IEEE Wireless Communications Letters
Pages :
599-602
Publisher :
IEEE comsoc
Publication date :
2013
ISSN :
2162-2337
English keyword(s) :
MIMO
OFDM
channel estimation
fast fading
iterative detection
OFDM
channel estimation
fast fading
iterative detection
HAL domain(s) :
Physique [physics]
English abstract : [en]
This letter addresses the problem of channel estimation in fast time-varying frequency selective channels. Considering orthogonal frequency division multiplexing in a multipleinput multiple-output system, we perform ...
Show more >This letter addresses the problem of channel estimation in fast time-varying frequency selective channels. Considering orthogonal frequency division multiplexing in a multipleinput multiple-output system, we perform soft-Kalman filtering for channel estimation in conjunction with soft-interference canceling at the receiver to reduce the inter-carrier interference. We also propose two simplified implementations of the soft-Kalman filter for the case of constant-modulus signal constellations that allow considerable reductions in the receiver computational complexity, while performing more or less closely to the exact soft-Kalman estimator, depending on channel conditions. For non-constant-modulus signal constellations, however, the exact formulation of the soft-Kalman filter should be used.Show less >
Show more >This letter addresses the problem of channel estimation in fast time-varying frequency selective channels. Considering orthogonal frequency division multiplexing in a multipleinput multiple-output system, we perform soft-Kalman filtering for channel estimation in conjunction with soft-interference canceling at the receiver to reduce the inter-carrier interference. We also propose two simplified implementations of the soft-Kalman filter for the case of constant-modulus signal constellations that allow considerable reductions in the receiver computational complexity, while performing more or less closely to the exact soft-Kalman estimator, depending on channel conditions. For non-constant-modulus signal constellations, however, the exact formulation of the soft-Kalman filter should be used.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Non spécifiée
Popular science :
Non
Source :