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Article: Capacity enhancement of band-limited DS-CDMA system using weighted despreading function

TitleCapacity enhancement of band-limited DS-CDMA system using weighted despreading function
Authors
Issue Date1999
PublisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=26
Citation
Ieee Transactions On Communications, 1999, v. 47 n. 8, p. 1218-1226 How to Cite?
AbstractThis paper addresses capacity enhancement of a band-limited direct-sequence code-division multiple-access system by using a weighted despreading function (WDF) in the receiver. An ideal Gaussian channel with perfect power control is assumed. The system performance is measured by the signal-to-interference-plus-noise ratio of the decision variable derived in the frequency domain, the bandwidth efficiency factor, the capacity enhancement factor, and the bit-error rate. It is shown that tuning a parameter of the WDF employed helps to partially flatten the in-band cross-spectrum of a pair of spreading and despreading functions. Numerical results show that the capacity of the proposed system improves over the conventional system using rectangular despreading function. To assess practical implications of the WDF receiver, the sensitivity to timing error is also analyzed.
Persistent Identifierhttp://hdl.handle.net/10722/42841
ISSN
2015 Impact Factor: 2.298
2015 SCImago Journal Rankings: 1.659
References

 

DC FieldValueLanguage
dc.contributor.authorHuang, Yen_HK
dc.contributor.authorNg, TSen_HK
dc.date.accessioned2007-03-23T04:33:12Z-
dc.date.available2007-03-23T04:33:12Z-
dc.date.issued1999en_HK
dc.identifier.citationIeee Transactions On Communications, 1999, v. 47 n. 8, p. 1218-1226en_HK
dc.identifier.issn0090-6778en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42841-
dc.description.abstractThis paper addresses capacity enhancement of a band-limited direct-sequence code-division multiple-access system by using a weighted despreading function (WDF) in the receiver. An ideal Gaussian channel with perfect power control is assumed. The system performance is measured by the signal-to-interference-plus-noise ratio of the decision variable derived in the frequency domain, the bandwidth efficiency factor, the capacity enhancement factor, and the bit-error rate. It is shown that tuning a parameter of the WDF employed helps to partially flatten the in-band cross-spectrum of a pair of spreading and despreading functions. Numerical results show that the capacity of the proposed system improves over the conventional system using rectangular despreading function. To assess practical implications of the WDF receiver, the sensitivity to timing error is also analyzed.en_HK
dc.format.extent268970 bytes-
dc.format.extent8772 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=26en_HK
dc.relation.ispartofIEEE Transactions on Communicationsen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©1999 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.titleCapacity enhancement of band-limited DS-CDMA system using weighted despreading functionen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0090-6778&volume=47&issue=8&spage=1218&epage=1226&date=1999&atitle=Capacity+enhancement+of+band-limited+DS-CDMA+system+using+weighted+despreading+functionen_HK
dc.identifier.emailNg, TS:tsng@eee.hku.hken_HK
dc.identifier.authorityNg, TS=rp00159en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/26.780458en_HK
dc.identifier.scopuseid_2-s2.0-0033340019en_HK
dc.identifier.hkuros52518-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033340019&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume47en_HK
dc.identifier.issue8en_HK
dc.identifier.spage1218en_HK
dc.identifier.epage1226en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridHuang, Y=8118863900en_HK
dc.identifier.scopusauthoridNg, TS=7402229975en_HK

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