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Article: Adaptive LMS filters for cellular CDMA overlay situations
Title | Adaptive LMS filters for cellular CDMA overlay situations |
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Authors | |
Issue Date | 1996 |
Publisher | IEEE. |
Citation | IEEE Journal on Selected Areas in Communications, 1996, v. 14 n. 8, p. 1548-1559 How to Cite? |
Abstract | This 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 Identifier | http://hdl.handle.net/10722/42777 |
ISSN | 2023 Impact Factor: 13.8 2023 SCImago Journal Rankings: 8.707 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Wang, J | en_HK |
dc.contributor.author | Milstein, LB | en_HK |
dc.date.accessioned | 2007-03-23T04:32:00Z | - |
dc.date.available | 2007-03-23T04:32:00Z | - |
dc.date.issued | 1996 | en_HK |
dc.identifier.citation | IEEE Journal on Selected Areas in Communications, 1996, v. 14 n. 8, p. 1548-1559 | en_HK |
dc.identifier.issn | 0733-8716 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/42777 | - |
dc.description.abstract | This 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.extent | 911399 bytes | - |
dc.format.extent | 25088 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.format.mimetype | application/msword | - |
dc.language | eng | en_HK |
dc.publisher | IEEE. | en_HK |
dc.relation.ispartof | IEEE Journal on Selected Areas in Communications | - |
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. | - |
dc.title | Adaptive LMS filters for cellular CDMA overlay situations | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://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+situations | en_HK |
dc.description.nature | published_or_final_version | en_HK |
dc.identifier.doi | 10.1109/49.539408 | en_HK |
dc.identifier.scopus | eid_2-s2.0-0030258759 | - |
dc.identifier.hkuros | 37736 | - |
dc.identifier.isi | WOS:A1996VM62300007 | - |
dc.identifier.issnl | 0733-8716 | - |