Iterative Receiver for MIMO-OFDM Systems: Intercarrier Interference Cancellation and Channel Estimation - Couverture souple

LI, RUI

Couverture souple

ISBN 10 : 3639212746 ISBN 13 : 9783639212747

Editeur : VDM Verlag, 2009

Synopsis

OFDM with multiple antennas has been considered in the future wireless communication systems. The challenge in the detection of a space-time signal is to design a low-complexity detector, which can remove interference resulted from channel variations and approach the interference-free bound. In this book, we employ an iterative receiver with a decoder metric, so that the bias effect in the iterations is considerably reduced, which is critical for the performance of the iterative algorithm. A new algorithm is proposed for intercarrier interference cancellation in high mobility scenarios. Furthermore, a simplified method is developed to reduce the computation complexity in the frequency- domain equalizer. In time-variant scenarios, we investigate a pilot-assisted channel estimation method under the assumption that the channel can be approximated by a linear model. The estimated channel will be used to update the frequency-domain equalizer and parallel interference canceler (PIC) in the iterative MIMO-OFDM receiver. It is shown that the proposed equalization algorithm with estimated channel state information can mitigate the effect of ICI effectively.

Détails de l'édition

• Éditeur: VDM Verlag
• Date d'édition: 2009
• Langue: anglais
• ISBN 10: 3639212746
• ISBN 13: 9783639212747
• Reliure: Broché
• Nombre de pages: 128
• Coordonnées du fabricant: non disponible
• Personne responsable: non disponible