A non-linear precoding technique for downlink MC-CDMA

Author

Cosovic, Ivan ; Sand, Stephan ; Raulefs, Ronald

Author_Institution

Inst. of Commun. & Navigation, German Aerosp. Center, Wessling, Germany

Volume

3

fYear

2005

fDate

30 May-1 June 2005

Firstpage

1711

Abstract

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.

Keywords

channel coding; code division multiple access; mobile radio; nonlinear codes; precoding; radio links; radiofrequency interference; wireless channels; SISO system; channel state information; dirty-paper approach; downlink MC-CDMA; interference cancellation; mobile terminal; multiple-access interference; nonlinear precoding technique; Channel state information; Decoding; Downlink; Interference cancellation; Multiaccess communication; Multicarrier code division multiple access; Multiple access interference; Multiuser detection; OFDM; Radio transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2005. VTC 2005-Spring. 2005 IEEE 61st

ISSN

1550-2252

Print_ISBN

0-7803-8887-9

Type

conf

DOI

10.1109/VETECS.2005.1543613

Filename

1543613