Iterative time domain estimation of rapidly ...
Type de document :
Communication dans un congrès avec actes
Titre :
Iterative time domain estimation of rapidly changing channel for OFDM systems in a cognitive radio context
Auteur(s) :
Kalakech, Ali [Auteur]
Darazi, Rony [Auteur]
Berbineau, Marion [Auteur]
Simon, Eric [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Télécommunication, Interférences et Compatibilité Electromagnétique - IEMN [TELICE - IEMN]
Dayoub, Iyad [Auteur]
COMmunications NUMériques - IEMN [COMNUM - IEMN]
Darazi, Rony [Auteur]
Berbineau, Marion [Auteur]
Simon, Eric [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Télécommunication, Interférences et Compatibilité Electromagnétique - IEMN [TELICE - IEMN]
Dayoub, Iyad [Auteur]
COMmunications NUMériques - IEMN [COMNUM - IEMN]
Titre de la manifestation scientifique :
2015 Third International Conference on Technological Advances in Electrical, Electronics and Computer Engineering (TAEECE)
Ville :
Beirut
Pays :
Liban
Date de début de la manifestation scientifique :
2015-04-29
Titre de l’ouvrage :
International Conference on Technological Advances in Electrical, Electronics and Computer Engineering (TAEECE)
Éditeur :
IEEE
Discipline(s) HAL :
Informatique [cs]
Résumé en anglais : [en]
Rapidly changing channels typically occurs in high speed situations where Doppler phenomena, related to the terminal's high speed, affects the use of OFDM systems by producing a loss of orthogonality between different ...
Lire la suite >Rapidly changing channels typically occurs in high speed situations where Doppler phenomena, related to the terminal's high speed, affects the use of OFDM systems by producing a loss of orthogonality between different carriers. Thus, the channel estimation and equalisation become a challenging problem especially when the number of pilot carriers is limited. In this paper we make use of the cognitive abilities provided by cognitive radio systems in order to propose an iterative Time Domain Linear Minimum Mean Square Error (TD-LMMSE) estimation algorithm for rapidly changing channels in OFDM system. The TD-LMMSE emulates the effect of a sliding window, and iteratively remove the interference caused by the data field. Simulation results, showing a significant gain in terms of MSE and Bit Error Rate (BER) compared to other state of the art algorithms are reported over a wide Signal-to-Noise Ratio (SNR) range.Lire moins >
Lire la suite >Rapidly changing channels typically occurs in high speed situations where Doppler phenomena, related to the terminal's high speed, affects the use of OFDM systems by producing a loss of orthogonality between different carriers. Thus, the channel estimation and equalisation become a challenging problem especially when the number of pilot carriers is limited. In this paper we make use of the cognitive abilities provided by cognitive radio systems in order to propose an iterative Time Domain Linear Minimum Mean Square Error (TD-LMMSE) estimation algorithm for rapidly changing channels in OFDM system. The TD-LMMSE emulates the effect of a sliding window, and iteratively remove the interference caused by the data field. Simulation results, showing a significant gain in terms of MSE and Bit Error Rate (BER) compared to other state of the art algorithms are reported over a wide Signal-to-Noise Ratio (SNR) range.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Source :