Wiener feedback filtering for suppression of residual ISI and correlated noise in MC-CDMA

Haibing Yang, J.P.M.G. Linnartz

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

1 Citaat (Scopus)

Samenvatting

Multi-carrier CDMA takes advantage of frequency diversity by spreading each user symbol across multiple sub-carriers to improve the transmission performance. However, the performance of linear detection schemes is affected by the residual inter-symbol interference (ISI) and the correlated noise present in decision variables. In order to improve the performance, a decision feedback equalization (DFE) scheme is proposed in this paper. In the feedback stage, an optimal Wiener filter is designed to predict and suppress the residual ISI and the correlated noise caused by the channel equalization and code despreading in the feedforward stage. Simulations show that the proposed DFE scheme significantly outperforms the conventional linear minimum mean-square error (MMSE) receiver. By this scheme, a noise penalty between MC-CDMA and ideally coded OFDM is largely reduced.
Originele taal-2Engels
TitelProceedings of the 14th Annual Symposium on Communications and Vehicular Technology in the Benelux (IEEE SCVT 2007), 15 November 2007, Delft, The Nederlands
Plaats van productieDelft, The Netherlands
UitgeverijInstitute of Electrical and Electronics Engineers
Pagina's1-5
DOI's
StatusGepubliceerd - 2007
Evenement14th IEEE Symposium on Communications and Vehicular Technology in the Benelux (IEEE SCVT 2007) - Delft, Nederland
Duur: 15 nov 200715 nov 2007
Congresnummer: 14

Congres

Congres14th IEEE Symposium on Communications and Vehicular Technology in the Benelux (IEEE SCVT 2007)
Verkorte titelIEEE SCVT 2007
Land/RegioNederland
StadDelft
Periode15/11/0715/11/07
AnderIEEE Symposium on Communications and Vehicular Technology in the Benelux (SCVT 2007)

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