Articles liés à Nonlinear distortion in mobile communication systems

Nonlinear distortion in mobile communication systems - Couverture souple

Drotar, Peter

 
9783659783814: Nonlinear distortion in mobile communication systems
Couverture souple
ISBN 10 : 3659783811 ISBN 13 : 9783659783814
Editeur : LAP LAMBERT Academic Publishing, 2015

Synopsis

MIMO-OFDM transmission systems provide a high spectral efficiency, robustness in the frequency selective channels and flexibility in the resource allocation. However, like a single-input single output (SISO) OFDM systems, similarly MIMO-OFDM has one main drawback i.e. high sensitivity to the nonlinearities in RF front-ends due to the large envelope fluctuation of OFDM-based signals. When a nonlinear high power amplifier (HPA) is used, large back-off is necessary to avoid strong nonlinear distortion causing performance degradation. On the other hand, when the HPA is operating in the linear region, the power efficiency is low. To avoid nonlinear distortion transmitter-side or receiver-side solution can be employed with advantage. Here, a transmitter-side method based on using the tone reservation technique is proposed for the space-frequency block coded (SFBC) OFDM systems with three and more transmit antennas. Then, new receiver-side iterative method for the detection of nonlinearly distorted symbols received by the receiver of SFBC-OFDM transmission system is designed.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

MIMO-OFDM transmission systems provide a high spectral efficiency, robustness in the frequency selective channels and flexibility in the resource allocation. However, like a single-input single output (SISO) OFDM systems, similarly MIMO-OFDM has one main drawback i.e. high sensitivity to the nonlinearities in RF front-ends due to the large envelope fluctuation of OFDM-based signals. When a nonlinear high power amplifier (HPA) is used, large back-off is necessary to avoid strong nonlinear distortion causing performance degradation. On the other hand, when the HPA is operating in the linear region, the power efficiency is low. To avoid nonlinear distortion transmitter-side or receiver-side solution can be employed with advantage. Here, a transmitter-side method based on using the tone reservation technique is proposed for the space-frequency block coded (SFBC) OFDM systems with three and more transmit antennas. Then, new receiver-side iterative method for the detection of nonlinearly distorted symbols received by the receiver of SFBC-OFDM transmission system is designed.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2015
Langue
anglais
ISBN 10 
3659783811
ISBN 13 
9783659783814
Reliure
Broché
Nombre de pages
116
Coordonnées du fabricant
non disponible
Personne responsable
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