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Multi-user MIMO-OFDM in practice: Enabling spectrally efficient transmission over time-varying channels - Couverture souple

Schellmann, Jan Malte

 
9783838110561: Multi-user MIMO-OFDM in practice: Enabling spectrally efficient transmission over time-varying channels
Couverture souple
ISBN 10 : 3838110560 ISBN 13 : 9783838110561
Editeur : Südwestdeutscher Verlag für Hochschulschriften, 2009

Synopsis

The combination of MIMO multiple antenna technique together with OFDM multi-carrier transmission promises to achieve high spectral efficiencies while setting moderate complexity demands on transmitter and receiver structures. In multi-user systems, the achievable throughput can be improved further by assigning the available system resources to the users experiencing favourable channel conditions. Based on this idea, the concept of channel-adaptive transmission for MIMO-OFDM has been developed, where the transmission is adapted to the current channel conditions. However, the time variant nature of the radio channels, which is caused by movement of the user terminals or by impairments in the transmission chain, may introduce severe distortions into the transmission system, which effectively limit the spectral efficiencies achievable in practice. This dissertation addresses methods for signal transmission in multi-user MIMO-OFDM systems in a practical context and finds solutions to overcome the signal degradations caused by the channel’s time variance for different scenarios, paving the way for spectrally efficient MIMO-OFDM transmission in practice.

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

Présentation de l'éditeur

The combination of MIMO multiple antenna technique together with OFDM multi-carrier transmission promises to achieve high spectral efficiencies while setting moderate complexity demands on transmitter and receiver structures. In multi-user systems, the achievable throughput can be improved further by assigning the available system resources to the users experiencing favourable channel conditions. Based on this idea, the concept of channel-adaptive transmission for MIMO-OFDM has been developed, where the transmission is adapted to the current channel conditions. However, the time variant nature of the radio channels, which is caused by movement of the user terminals or by impairments in the transmission chain, may introduce severe distortions into the transmission system, which effectively limit the spectral efficiencies achievable in practice. This dissertation addresses methods for signal transmission in multi-user MIMO-OFDM systems in a practical context and finds solutions to overcome the signal degradations caused by the channel’s time variance for different scenarios, paving the way for spectrally efficient MIMO-OFDM transmission in practice.

Biographie de l'auteur

received the Dipl.-Ing. (M.S.) degree from TU München, Germany,in 2003 and the Dr.-Ing. (Ph.D.) degree from TU Berlin, Germany,in 2009, both in electrical engineering. Since 2004, he has beenworking at the Fraunhofer Heinrich Hertz Institute, Berlin,investigating practical aspects of multi-user MIMO-OFDMcommunications.

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

Éditeur
Südwestdeutscher Verlag für Hochschulschriften
Date d'édition
2009
Langue
allemand
ISBN 10 
3838110560
ISBN 13 
9783838110561
Reliure
Broché
Nombre de pages
164
Coordonnées du fabricant
non disponible
Personne responsable
info@bod.de
info@bod.de

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