Analysis and power diversity-based cancellation of nonlinear distortions in OFDM systems

Carlos Alexandre Rolim Fernandes 1 João Mota 1 Gérard Favier 2
1 DETI - Departamento de Engenharia de Teleinformática
2 Laboratoire d'Informatique, Signaux, et Systèmes de Sophia-Antipolis (I3S) / Equipe SIGNAL
Laboratoire I3S - SIS - Signal, Images et Systèmes
Abstract : One of the main drawbacks of orthogonal frequency division multiplexing (OFDM) systems is the high peak-to-average power ratio (PAPR) of the transmitted signals, which can cause the introduction of inter-carrier interference (ICI) due to the presence of nonlinear power amplifiers (PAs). In this paper, a theoretical analysis of ICI in nonlinear OFDM systems with polynomial PAs is made. Contrarily to other works, this analysis provides an exact description of nonlinear ICI. Moreover, three receivers for channel estimation and ICI cancellation in OFDM systems with polynomial PAs are proposed, based on the concept of power diversity that consists in re-transmitting the information symbols several times with a different transmission power each time. The transmission powers that minimize the sum of the residual mean square errors (MSEs) provided by the proposed receivers are derived in the case of a third-degree polynomial PA. An important advantage of the proposed receivers is that the optimal transmission powers do not depend on the channel nor the PA coefficients.
Keywords : Channel estimation intercarrier interference cancellation nonlinear systems orthogonal frequency division multiplexing (OFDM) power amplifiers
Type de document :
Article dans une revue
IEEE Transactions on Signal Processing, Institute of Electrical and Electronics Engineers, 2012, 60 (7), pp.3520-3531
Liste complète des métadonnées

Littérature citée [37 références]  Voir  Masquer  Télécharger
https://hal.archives-ouvertes.fr/hal-00718626
Contributeur : Gérard Favier <>
Soumis le : mardi 17 juillet 2012 - 17:00:34
Dernière modification le : lundi 5 novembre 2018 - 15:52:01
Document(s) archivé(s) le : vendredi 16 décembre 2016 - 00:31:38

Fichier

IEEE_TSP_July_2012.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-00718626, version 1

Collections

I3S | UNICE | UNIV-COTEDAZUR

Citation

Carlos Alexandre Rolim Fernandes, João Mota, Gérard Favier. Analysis and power diversity-based cancellation of nonlinear distortions in OFDM systems. IEEE Transactions on Signal Processing, Institute of Electrical and Electronics Engineers, 2012, 60 (7), pp.3520-3531. 〈hal-00718626〉

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

225

Téléchargements de fichiers

223

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD