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Article: Adaptive LMS filters for cellular CDMA overlay situations

TitleAdaptive LMS filters for cellular CDMA overlay situations
Authors
Issue Date1996
PublisherIEEE.
Citation
IEEE Journal on Selected Areas in Communications, 1996, v. 14 n. 8, p. 1548-1559 How to Cite?
AbstractThis paper extends and complements previous research we have performed on the performance of nonadaptive narrowband suppression filters when used in cellular code-division multiple-access (CDMA) overlay situations. An adaptive least mean square (LMS) filter is applied to a cellular CDMA overlay in order to reject narrowband interference. An accurate expression for the steady-state tap-weight covariance matrix is derived for the real LMS algorithm for arbitrary statistics of the overlaid interference. Numerical results illustrate that when the ratio of the narrowband interference bandwidth to the spread spectrum bandwidth is small, the LMS filter is very effective in rejecting the narrowband interference. Furthermore, it is seen that the performance of the LMS filter in a CDMA overlay environment is not significantly worse than the performance of an ideal Wiener filter, assuming the LMS filter has had sufficient time to converge.
Persistent Identifierhttp://hdl.handle.net/10722/42777
ISSN
2015 Impact Factor: 3.672
2015 SCImago Journal Rankings: 2.915

 

DC FieldValueLanguage
dc.contributor.authorWang, Jen_HK
dc.contributor.authorMilstein, LBen_HK
dc.date.accessioned2007-03-23T04:32:00Z-
dc.date.available2007-03-23T04:32:00Z-
dc.date.issued1996en_HK
dc.identifier.citationIEEE Journal on Selected Areas in Communications, 1996, v. 14 n. 8, p. 1548-1559en_HK
dc.identifier.issn0733-8716en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42777-
dc.description.abstractThis paper extends and complements previous research we have performed on the performance of nonadaptive narrowband suppression filters when used in cellular code-division multiple-access (CDMA) overlay situations. An adaptive least mean square (LMS) filter is applied to a cellular CDMA overlay in order to reject narrowband interference. An accurate expression for the steady-state tap-weight covariance matrix is derived for the real LMS algorithm for arbitrary statistics of the overlaid interference. Numerical results illustrate that when the ratio of the narrowband interference bandwidth to the spread spectrum bandwidth is small, the LMS filter is very effective in rejecting the narrowband interference. Furthermore, it is seen that the performance of the LMS filter in a CDMA overlay environment is not significantly worse than the performance of an ideal Wiener filter, assuming the LMS filter has had sufficient time to converge.en_HK
dc.format.extent911399 bytes-
dc.format.extent25088 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©1996 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.titleAdaptive LMS filters for cellular CDMA overlay situationsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0733-8716&volume=14&issue=8&spage=1548&epage=1559&date=1996&atitle=Adaptive+LMS+filters+for+cellular+CDMA+overlay+situationsen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/49.539408en_HK
dc.identifier.scopuseid_2-s2.0-0030258759-
dc.identifier.hkuros37736-

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