Joint semi-blind estimation of CFO and ...
Document type :
Communication dans un congrès avec actes
Title :
Joint semi-blind estimation of CFO and channel for OFDM system
Author(s) :
Besseghier, Mokhtar [Auteur]
Djebbar, Ahmed Bouzidi [Auteur]
Dayoub, Iyad [Auteur]
COMmunications NUMériques - IEMN [COMNUM - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - Département Opto-Acousto-Électronique - UMR 8520 [IEMN-DOAE]
Tahleb Ahmed, Abdelmalik [Auteur]
Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201 [LAMIH]
Djebbar, Ahmed Bouzidi [Auteur]
Dayoub, Iyad [Auteur]

COMmunications NUMériques - IEMN [COMNUM - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - Département Opto-Acousto-Électronique - UMR 8520 [IEMN-DOAE]
Tahleb Ahmed, Abdelmalik [Auteur]
Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201 [LAMIH]
Conference title :
2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)
City :
Tunis
Country :
Tunisie
Start date of the conference :
2014-11-03
Book title :
Proceedings of 1st International Conference on Electrical Sciences and Technologies in Maghreb
Publisher :
IEEE
English keyword(s) :
Orthogonal Frequency Division Multiplexing (OFDM)
Carrier frequency offset (CFO)
Virtual subcarriers (VSCs)
Null subcarriers (NSC)
No zero pilot symbols
Carrier frequency offset (CFO)
Virtual subcarriers (VSCs)
Null subcarriers (NSC)
No zero pilot symbols
HAL domain(s) :
Informatique [cs]/Réseaux et télécommunications [cs.NI]
Sciences de l'ingénieur [physics]/Traitement du signal et de l'image [eess.SP]
Informatique [cs]/Intelligence artificielle [cs.AI]
Sciences de l'ingénieur [physics]/Electronique
Sciences de l'ingénieur [physics]/Traitement du signal et de l'image [eess.SP]
Informatique [cs]/Intelligence artificielle [cs.AI]
Sciences de l'ingénieur [physics]/Electronique
English abstract : [en]
The greatest threat to the OFDM system is the loss of orthogonality between subcarriers due to the carrier frequency offset (CFO) which results in significant performance degradation. In addition to this last problem was ...
Show more >The greatest threat to the OFDM system is the loss of orthogonality between subcarriers due to the carrier frequency offset (CFO) which results in significant performance degradation. In addition to this last problem was the effect of propagation over multipath fading channel. Hence, both the channel and the CFO need to be estimated and corrected at the receiver for subsequent symbol detection. A new joint semi-blind CFO and channel estimation methods for OFDM systems based on maximum-likelihood (ML) is investigated in this paper. The proposed algorithm is based on virtual subcarriers (VSCs) and on a new design of pilot patterns in OFDM blocks. The simulation results are given to verify the validity of the proposed methods.Show less >
Show more >The greatest threat to the OFDM system is the loss of orthogonality between subcarriers due to the carrier frequency offset (CFO) which results in significant performance degradation. In addition to this last problem was the effect of propagation over multipath fading channel. Hence, both the channel and the CFO need to be estimated and corrected at the receiver for subsequent symbol detection. A new joint semi-blind CFO and channel estimation methods for OFDM systems based on maximum-likelihood (ML) is investigated in this paper. The proposed algorithm is based on virtual subcarriers (VSCs) and on a new design of pilot patterns in OFDM blocks. The simulation results are given to verify the validity of the proposed methods.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Source :