A non-linear precoding technique for downlink MC-CDMA

Multiple-access interference is a major burden for MC-CDMA schemes. The possible complexity in the hardware of the mobile terminal is another major limitation. Both burdens can be answered in the downlink by preceding the signal with the knowledge of the channel state information. In this paper, we...

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Vydáno v:2005 IEEE 61st Vehicular Technology Conference Ročník 3; s. 1711 - 1715 Vol. 3
Hlavní autoři: Cosovic, I., Sand, S., Raulefs, R.
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 2005
Témata:
Channel state information
Decoding
Downlink
Interference cancellation
Multiaccess communication
Multicarrier code division multiple access
Multiple access interference
Multiuser detection
OFDM
Radio transmitters
ISBN:9780780388871, 0780388879
ISSN:1550-2252
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Shrnutí:Multiple-access interference is a major burden for MC-CDMA schemes. The possible complexity in the hardware of the mobile terminal is another major limitation. Both burdens can be answered in the downlink by preceding the signal with the knowledge of the channel state information. In this paper, we introduce a non-linear precoder to cancel the multiple-access interference motivated by the dirty-paper approach and by taking into account a non-linear modulo operation. The results show for a SISO system a significant improvement over recent proposed precoding schemes.
ISBN:9780780388871
0780388879
ISSN:1550-2252
DOI:10.1109/VETECS.2005.1543613