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Article: Capacity enhancement of band-limited DS-CDMA system using weighted despreading function
Title | Capacity enhancement of band-limited DS-CDMA system using weighted despreading function |
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Authors | |
Issue Date | 1999 |
Publisher | I 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? |
Abstract | This 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 Identifier | http://hdl.handle.net/10722/42841 |
ISSN | 2023 Impact Factor: 7.2 2020 SCImago Journal Rankings: 1.468 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Huang, Y | en_HK |
dc.contributor.author | Ng, TS | en_HK |
dc.date.accessioned | 2007-03-23T04:33:12Z | - |
dc.date.available | 2007-03-23T04:33:12Z | - |
dc.date.issued | 1999 | en_HK |
dc.identifier.citation | Ieee Transactions On Communications, 1999, v. 47 n. 8, p. 1218-1226 | en_HK |
dc.identifier.issn | 0090-6778 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/42841 | - |
dc.description.abstract | This 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.extent | 268970 bytes | - |
dc.format.extent | 8772 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.format.mimetype | text/plain | - |
dc.language | eng | en_HK |
dc.publisher | I E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=26 | en_HK |
dc.relation.ispartof | IEEE Transactions on Communications | en_HK |
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. | - |
dc.title | Capacity enhancement of band-limited DS-CDMA system using weighted despreading function | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://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+function | en_HK |
dc.identifier.email | Ng, TS:tsng@eee.hku.hk | en_HK |
dc.identifier.authority | Ng, TS=rp00159 | en_HK |
dc.description.nature | published_or_final_version | en_HK |
dc.identifier.doi | 10.1109/26.780458 | en_HK |
dc.identifier.scopus | eid_2-s2.0-0033340019 | en_HK |
dc.identifier.hkuros | 52518 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0033340019&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 47 | en_HK |
dc.identifier.issue | 8 | en_HK |
dc.identifier.spage | 1218 | en_HK |
dc.identifier.epage | 1226 | en_HK |
dc.identifier.isi | WOS:000082080800016 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Huang, Y=8118863900 | en_HK |
dc.identifier.scopusauthorid | Ng, TS=7402229975 | en_HK |
dc.identifier.issnl | 0090-6778 | - |