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- W3043609265 abstract "Multi-Carrier CDMA (MC-CDMA) combining multi-carrier modulation and spreading in the frequency domain is a promising candidate for new air interfaces of future mobile radio systems. This thesis explores the potential of multiple antenna technologies for the downlink of an MC-CDMA system. Space-frequency transmit filtering is proposed for the case where instantaneous knowledge of the channel fading is available at the basestation. This approach can optimally exploit the spatial diversity of the channel and efficiently mitigate the multiple access interference. When only covariance knowledge is available, we propose transmit beamforming with direction-based spreading code assignment. This technique benefits from the antenna gain and from an implicit reduction of the interference. Both transmission strategies lead to an increased user capacity and simultaneously allow a transfer of implementation complexity from the mobile terminal to the basestation." @default.
- W3043609265 created "2020-07-23" @default.
- W3043609265 creator A5005025858 @default.
- W3043609265 date "2004-01-01" @default.
- W3043609265 modified "2023-09-24" @default.
- W3043609265 title "Transmission Strategies Employing Multiple Antennas for theDownlink of Multi-Carrier CDMA Systems" @default.
- W3043609265 hasPublicationYear "2004" @default.
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