{"id":"https://openalex.org/W2144252748","doi":"https://doi.org/10.1109/glocom.2009.5425410","title":"Symbol-Wise Beamforming for Co-Channel Interference Reduction in MIMO-OFDM Systems","display_name":"Symbol-Wise Beamforming for Co-Channel Interference Reduction in MIMO-OFDM Systems","publication_year":2009,"publication_date":"2009-11-01","ids":{"openalex":"https://openalex.org/W2144252748","doi":"https://doi.org/10.1109/glocom.2009.5425410","mag":"2144252748"},"language":"en","primary_location":{"id":"doi:10.1109/glocom.2009.5425410","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2009.5425410","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5005558550","display_name":"Andr\u00e9 Pollok","orcid":"https://orcid.org/0000-0001-8622-0853"},"institutions":[{"id":"https://openalex.org/I170239107","display_name":"University of South Australia","ror":"https://ror.org/01p93h210","country_code":"AU","type":"education","lineage":["https://openalex.org/I170239107"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Andre Pollok","raw_affiliation_strings":["Institute of Telecommunications Research, University of South Australia, Mawson Lakes, SA, Australia","Inst. for Telecommunications Research, University of South Australia, Mawson Lakes SA Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Telecommunications Research, University of South Australia, Mawson Lakes, SA, Australia","institution_ids":["https://openalex.org/I170239107"]},{"raw_affiliation_string":"Inst. for Telecommunications Research, University of South Australia, Mawson Lakes SA Australia","institution_ids":["https://openalex.org/I170239107"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029714738","display_name":"Nick Letzepis","orcid":"https://orcid.org/0000-0003-0374-2109"},"institutions":[{"id":"https://openalex.org/I170239107","display_name":"University of South Australia","ror":"https://ror.org/01p93h210","country_code":"AU","type":"education","lineage":["https://openalex.org/I170239107"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Nick Letzepis","raw_affiliation_strings":["Institute of Telecommunications Research, University of South Australia, Mawson Lakes, SA, Australia","Inst. for Telecommunications Research, University of South Australia, Mawson Lakes SA Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Telecommunications Research, University of South Australia, Mawson Lakes, SA, Australia","institution_ids":["https://openalex.org/I170239107"]},{"raw_affiliation_string":"Inst. for Telecommunications Research, University of South Australia, Mawson Lakes SA Australia","institution_ids":["https://openalex.org/I170239107"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5055076053","display_name":"William G. Cowley","orcid":"https://orcid.org/0000-0003-0477-919X"},"institutions":[{"id":"https://openalex.org/I170239107","display_name":"University of South Australia","ror":"https://ror.org/01p93h210","country_code":"AU","type":"education","lineage":["https://openalex.org/I170239107"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"William G. Cowley","raw_affiliation_strings":["Institute of Telecommunications Research, University of South Australia, Mawson Lakes, SA, Australia","Inst. for Telecommunications Research, University of South Australia, Mawson Lakes SA Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Telecommunications Research, University of South Australia, Mawson Lakes, SA, Australia","institution_ids":["https://openalex.org/I170239107"]},{"raw_affiliation_string":"Inst. for Telecommunications Research, University of South Australia, Mawson Lakes SA Australia","institution_ids":["https://openalex.org/I170239107"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I170239107"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":"4","issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10575","display_name":"Wireless Communication Networks Research","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/subcarrier","display_name":"Subcarrier","score":0.7750380039215088},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.7211782336235046},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.6181433796882629},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5858112573623657},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.5830076932907104},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.5475120544433594},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5334646105766296},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.501328706741333},{"id":"https://openalex.org/keywords/reduction","display_name":"Reduction (mathematics)","score":0.5007767677307129},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.48361316323280334},{"id":"https://openalex.org/keywords/multiplexing","display_name":"Multiplexing","score":0.4492529332637787},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.4330877661705017},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.43131542205810547},{"id":"https://openalex.org/keywords/discrete-fourier-transform","display_name":"Discrete Fourier transform (general)","score":0.4154747426509857},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.40733247995376587},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.31199610233306885},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.29007333517074585},{"id":"https://openalex.org/keywords/fourier-transform","display_name":"Fourier transform","score":0.16306203603744507},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.14308276772499084}],"concepts":[{"id":"https://openalex.org/C198329298","wikidata":"https://www.wikidata.org/wiki/Q586358","display_name":"Subcarrier","level":4,"score":0.7750380039215088},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.7211782336235046},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.6181433796882629},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5858112573623657},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.5830076932907104},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.5475120544433594},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5334646105766296},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.501328706741333},{"id":"https://openalex.org/C111335779","wikidata":"https://www.wikidata.org/wiki/Q3454686","display_name":"Reduction (mathematics)","level":2,"score":0.5007767677307129},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.48361316323280334},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.4492529332637787},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.4330877661705017},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.43131542205810547},{"id":"https://openalex.org/C57733114","wikidata":"https://www.wikidata.org/wiki/Q1006032","display_name":"Discrete Fourier transform (general)","level":5,"score":0.4154747426509857},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.40733247995376587},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.31199610233306885},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.29007333517074585},{"id":"https://openalex.org/C102519508","wikidata":"https://www.wikidata.org/wiki/Q6520159","display_name":"Fourier transform","level":2,"score":0.16306203603744507},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.14308276772499084},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C203024314","wikidata":"https://www.wikidata.org/wiki/Q1365258","display_name":"Fourier analysis","level":3,"score":0.0},{"id":"https://openalex.org/C76563020","wikidata":"https://www.wikidata.org/wiki/Q4817582","display_name":"Fractional Fourier transform","level":4,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/glocom.2009.5425410","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2009.5425410","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W595252221","https://openalex.org/W1523341876","https://openalex.org/W2077796974","https://openalex.org/W2098263823","https://openalex.org/W2122086235","https://openalex.org/W2123156506","https://openalex.org/W2127401968","https://openalex.org/W2130028893","https://openalex.org/W2130509920","https://openalex.org/W2136180922","https://openalex.org/W2143013378","https://openalex.org/W2151075748","https://openalex.org/W2158907205","https://openalex.org/W2296319761","https://openalex.org/W2610335499","https://openalex.org/W4250589301","https://openalex.org/W6631223297"],"related_works":["https://openalex.org/W4281688526","https://openalex.org/W2172159377","https://openalex.org/W2152088989","https://openalex.org/W2091769028","https://openalex.org/W2756419127","https://openalex.org/W4328011863","https://openalex.org/W4200589288","https://openalex.org/W2128109309","https://openalex.org/W2541629253","https://openalex.org/W2734326052"],"abstract_inverted_index":{"In":[0,71],"communication":[1],"systems":[2],"that":[3,98,131],"use":[4],"orthogonal":[5],"frequency-division":[6],"multiplexing":[7],"and":[8,11,54,62,114],"multiple":[9],"transmit":[10,53],"receive":[12,55],"antennas,":[13],"beamforming":[14],"(BF)":[15],"is":[16,101,109],"conventionally":[17],"carried":[18],"out":[19],"on":[20,84],"a":[21,116],"subcarrier":[22],"basis.":[23],"The":[24],"computational":[25],"requirements":[26],"are":[27,36,89],"high":[28],"as":[29],"dedicated":[30],"discrete":[31],"Fourier":[32],"transform":[33],"(DFT)":[34],"processors":[35],"needed":[37],"for":[38,78,120],"each":[39],"antenna.":[40],"Considerable":[41],"complexity":[42],"reductions":[43],"can":[44],"be":[45],"achieved":[46],"by":[47],"symbol-wise":[48,76,99,137],"BF,":[49],"which":[50,88],"performs":[51],"the":[52,59,79,92,102,107,121,124,132],"BF":[56,77,100,104,138],"operations":[57],"in":[58],"time":[60],"domain,":[61],"therefore":[63],"requires":[64],"only":[65],"one":[66],"DFT":[67],"processor":[68],"per":[69],"terminal.":[70],"this":[72],"paper,":[73],"we":[74],"investigate":[75],"mitigation":[80],"of":[81,123,136],"co-channel":[82],"interference":[83],"spatially":[85],"correlated":[86],"channels,":[87],"modelled":[90],"with":[91],"Kronecker":[93],"model.":[94],"We":[95],"show":[96],"analytically":[97],"optimal":[103,125],"scheme":[105],"when":[106,141],"channel":[108],"frequency-flat":[110],"or":[111],"fully":[112],"correlated,":[113],"present":[115],"novel":[117],"iterative":[118],"algorithm":[119],"computation":[122],"antenna":[126],"weights.":[127],"Monte-Carlo":[128],"simulations":[129],"confirm":[130],"relative":[133],"performance":[134],"loss":[135],"becomes":[139],"negligible":[140],"approaching":[142],"full":[143],"correlation.":[144]},"counts_by_year":[],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}