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Conference Paper: Robust channel estimation and multiuser detection for MC-CDMA systems under narrowband interference

TitleRobust channel estimation and multiuser detection for MC-CDMA systems under narrowband interference
Authors
Issue Date2006
Citation
Proceedings - IEEE International Symposium On Circuits And Systems, 2006, p. 1563-1566 How to Cite?
AbstractIn this paper, we present a robust multiuser detector for wireless multicarreir code-division multiple access (MC-CDMA) systems under time-varying narrowband interference (NBI). The conventional least-squares (LS) channel estimators and multiuser detectors will perform poorly when narrowband interfering signals contaminate the multicarrier systems. A new weighted least M-estimate (WLM) multiuser detector is proposed to jointly suppress multiple access interference (MAI) and time-varying NBI. The WLM multiuser detector resorts to M-estimate and weighted least-squares (WLS) techniques. A weighted recursive least M-estimate (WRLM) channel estimator is exploited to estimate the time-varying frequency-selective fading channels in the presence of NBI. Numerical results show that the proposed WLM multiuser detector significantly outperforms over the conventional linear decorrelator, the robust decorrelating detector with M-estimate and the WLS detector under NBI. © 2006 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/58779
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorCheng, Hen_HK
dc.contributor.authorZhang, ZGen_HK
dc.contributor.authorChan, SCen_HK
dc.date.accessioned2010-05-31T03:36:46Z-
dc.date.available2010-05-31T03:36:46Z-
dc.date.issued2006en_HK
dc.identifier.citationProceedings - IEEE International Symposium On Circuits And Systems, 2006, p. 1563-1566en_HK
dc.identifier.issn0271-4310en_HK
dc.identifier.urihttp://hdl.handle.net/10722/58779-
dc.description.abstractIn this paper, we present a robust multiuser detector for wireless multicarreir code-division multiple access (MC-CDMA) systems under time-varying narrowband interference (NBI). The conventional least-squares (LS) channel estimators and multiuser detectors will perform poorly when narrowband interfering signals contaminate the multicarrier systems. A new weighted least M-estimate (WLM) multiuser detector is proposed to jointly suppress multiple access interference (MAI) and time-varying NBI. The WLM multiuser detector resorts to M-estimate and weighted least-squares (WLS) techniques. A weighted recursive least M-estimate (WRLM) channel estimator is exploited to estimate the time-varying frequency-selective fading channels in the presence of NBI. Numerical results show that the proposed WLM multiuser detector significantly outperforms over the conventional linear decorrelator, the robust decorrelating detector with M-estimate and the WLS detector under NBI. © 2006 IEEE.en_HK
dc.languageengen_HK
dc.relation.ispartofProceedings - IEEE International Symposium on Circuits and Systemsen_HK
dc.titleRobust channel estimation and multiuser detection for MC-CDMA systems under narrowband interferenceen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailChan, SC:scchan@eee.hku.hken_HK
dc.identifier.authorityChan, SC=rp00094en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-34547341136en_HK
dc.identifier.hkuros121415en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34547341136&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.spage1563en_HK
dc.identifier.epage1566en_HK
dc.identifier.scopusauthoridCheng, H=7404285647en_HK
dc.identifier.scopusauthoridZhang, ZG=15039888400en_HK
dc.identifier.scopusauthoridChan, SC=13310287100en_HK

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