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Linear multiuser transmission for CDMA with reduced computational complexity
2004 IEEE 59th Vehicular Technology Conference. VTC 2004-Spring (IEEE Cat. No.04CH37514)
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CDMA system capacity is interference limited. Whereas for the uplink Multiuser Detection can be applied, for the downlink Multiuser Transmission (MUT) is required. Using channel knowledge, the transmit signal is jointly preprocessed in a way, that the performance in the receivers is optimized. Linear MUT methods like Joint Transmission (JT) or the Transmit Wiener filter are computational intensive due to the inversion of the system matrix. Efficient algorithms are proposed and compared, like
doi:10.1109/vetecs.2004.1390503
fatcat:nyvw4fae2rc7zmawx5gbuxlumq