Multichannel adaptive beamforming and interference mitigation in multiuser CDMA systems
In CDMA systems, multiple users produce cochannel interference that is only partially mitigated by user-dependent spreading codes. Limitations in any closed-loop transmitter power control can create received power variations at the base station that are potentially large. Multichannel multiuser dete...
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| container_end_page | 510 vol.1 |
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| creator | Forsythe, K.W. Bliss, D.W. Keller, C.M. |
| description | In CDMA systems, multiple users produce cochannel interference that is only partially mitigated by user-dependent spreading codes. Limitations in any closed-loop transmitter power control can create received power variations at the base station that are potentially large. Multichannel multiuser detectors are data-adaptive receivers that provide interference mitigation as well as spatial and temporal diversity. These receivers are discussed in the context of CDMA applications. A maximum likelihood formulation of multiuser detection with antenna arrays is introduced to provide motivation and intuition. The proposed multiuser receiver incorporates space-time beamforming and time-domain interference cancellation. Performance examples using simulated and experimental data are given along with comparisons with a variety of receiver types. |
| doi_str_mv | 10.1109/ACSSC.1999.832381 |
| format | Conference Proceeding |
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Performance examples using simulated and experimental data are given along with comparisons with a variety of receiver types.</description><subject>Antenna arrays</subject><subject>Array signal processing</subject><subject>Base stations</subject><subject>Detectors</subject><subject>Interchannel interference</subject><subject>Maximum likelihood detection</subject><subject>Multiaccess communication</subject><subject>Multiuser detection</subject><subject>Power control</subject><subject>Transmitters</subject><issn>1058-6393</issn><issn>2576-2303</issn><isbn>9780780357006</isbn><isbn>0780357000</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>1999</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNotkF1LwzAYhYMf4Jj9AXqVP9Cazza5LFWnsOHFFC9Hmr6tkTYbSSbs31uZhwMHnovn4iB0R0lBKdEPdbPdNgXVWheKM67oBVowWZU544RfokxXiszlsiKkvEILSqTKS675Dcpi_CZzhKSClQv0uTmOydkv4z2M2HTmkNwP4BbM1O_D5PyAje-w8wlCDwG8BTy55AaT3N7PHE9_gmOEgJvHTY3jKSaY4i267s0YIfvfJfp4fnpvXvL12-q1qdf5QJlKeWl110kuWqFLZhWHVkgGRlqglEKrFBWCCSMEsRUB1fdCCwDVQWsqq_uKL9H92esAYHcIbjLhtDu_wn8BWjpVdg</recordid><startdate>1999</startdate><enddate>1999</enddate><creator>Forsythe, K.W.</creator><creator>Bliss, D.W.</creator><creator>Keller, C.M.</creator><general>IEEE</general><scope>6IE</scope><scope>6IH</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIO</scope></search><sort><creationdate>1999</creationdate><title>Multichannel adaptive beamforming and interference mitigation in multiuser CDMA systems</title><author>Forsythe, K.W. ; Bliss, D.W. ; Keller, C.M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g128t-6c9dd534b4962c83eb452ea5ce111eb8814424a440c70e8ff494ee8deba7c9f73</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Antenna arrays</topic><topic>Array signal processing</topic><topic>Base stations</topic><topic>Detectors</topic><topic>Interchannel interference</topic><topic>Maximum likelihood detection</topic><topic>Multiaccess communication</topic><topic>Multiuser detection</topic><topic>Power control</topic><topic>Transmitters</topic><toplevel>online_resources</toplevel><creatorcontrib>Forsythe, K.W.</creatorcontrib><creatorcontrib>Bliss, D.W.</creatorcontrib><creatorcontrib>Keller, C.M.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan (POP) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP) 1998-present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Forsythe, K.W.</au><au>Bliss, D.W.</au><au>Keller, C.M.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Multichannel adaptive beamforming and interference mitigation in multiuser CDMA systems</atitle><btitle>Conference Record of the Thirty-Third Asilomar Conference on Signals, Systems, and Computers (Cat. No.CH37020)</btitle><stitle>ACSSC</stitle><date>1999</date><risdate>1999</risdate><volume>1</volume><spage>506</spage><epage>510 vol.1</epage><pages>506-510 vol.1</pages><issn>1058-6393</issn><eissn>2576-2303</eissn><isbn>9780780357006</isbn><isbn>0780357000</isbn><abstract>In CDMA systems, multiple users produce cochannel interference that is only partially mitigated by user-dependent spreading codes. Limitations in any closed-loop transmitter power control can create received power variations at the base station that are potentially large. Multichannel multiuser detectors are data-adaptive receivers that provide interference mitigation as well as spatial and temporal diversity. These receivers are discussed in the context of CDMA applications. A maximum likelihood formulation of multiuser detection with antenna arrays is introduced to provide motivation and intuition. The proposed multiuser receiver incorporates space-time beamforming and time-domain interference cancellation. Performance examples using simulated and experimental data are given along with comparisons with a variety of receiver types.</abstract><pub>IEEE</pub><doi>10.1109/ACSSC.1999.832381</doi></addata></record> |
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| identifier | ISSN: 1058-6393 |
| ispartof | Conference Record of the Thirty-Third Asilomar Conference on Signals, Systems, and Computers (Cat. No.CH37020), 1999, Vol.1, p.506-510 vol.1 |
| issn | 1058-6393 2576-2303 |
| language | eng |
| recordid | cdi_ieee_primary_832381 |
| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Antenna arrays Array signal processing Base stations Detectors Interchannel interference Maximum likelihood detection Multiaccess communication Multiuser detection Power control Transmitters |
| title | Multichannel adaptive beamforming and interference mitigation in multiuser CDMA systems |
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