{"id":"https://openalex.org/W2917267136","doi":"https://doi.org/10.1109/glocom.2018.8647663","title":"An Iterative Approach for Inter-Group Interference Management in Two-Stage Precoder Design","display_name":"An Iterative Approach for Inter-Group Interference Management in Two-Stage Precoder Design","publication_year":2018,"publication_date":"2018-12-01","ids":{"openalex":"https://openalex.org/W2917267136","doi":"https://doi.org/10.1109/glocom.2018.8647663","mag":"2917267136"},"language":"en","primary_location":{"id":"doi:10.1109/glocom.2018.8647663","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2018.8647663","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 IEEE Global Communications Conference (GLOBECOM)","raw_type":"proceedings-article"},"type":"article","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/A5072278227","display_name":"Ayswarya Padmanabhan","orcid":null},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":true,"raw_author_name":"Ayswarya Padmanabhan","raw_affiliation_strings":["Centre for Wireless Communications (CWC), University of Oulu, Finland"],"affiliations":[{"raw_affiliation_string":"Centre for Wireless Communications (CWC), University of Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5039827493","display_name":"Antti T\u00f6lli","orcid":"https://orcid.org/0000-0001-6219-9770"},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Antti Tolli","raw_affiliation_strings":["Centre for Wireless Communications (CWC), University of Oulu, Finland"],"affiliations":[{"raw_affiliation_string":"Centre for Wireless Communications (CWC), University of Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5072278227"],"corresponding_institution_ids":["https://openalex.org/I98381234"],"apc_list":null,"apc_paid":null,"fwci":0.6438,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.7229962,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"34","issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9998000264167786,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9998000264167786,"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/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9994999766349792,"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/T11946","display_name":"Antenna Design and Optimization","score":0.995199978351593,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/karush\u2013kuhn\u2013tucker-conditions","display_name":"Karush\u2013Kuhn\u2013Tucker conditions","score":0.7054631114006042},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.6158829927444458},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6003629565238953},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5992565751075745},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.5550091862678528},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.5361214876174927},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.5354291200637817},{"id":"https://openalex.org/keywords/iterative-method","display_name":"Iterative method","score":0.5173913240432739},{"id":"https://openalex.org/keywords/maximization","display_name":"Maximization","score":0.4718513488769531},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.45342138409614563},{"id":"https://openalex.org/keywords/heuristic","display_name":"Heuristic","score":0.4531172215938568},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.4356735944747925},{"id":"https://openalex.org/keywords/cluster-analysis","display_name":"Cluster analysis","score":0.41290971636772156},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3989437222480774},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.3918437957763672},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2700066566467285},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.11715129017829895}],"concepts":[{"id":"https://openalex.org/C50454189","wikidata":"https://www.wikidata.org/wiki/Q2075125","display_name":"Karush\u2013Kuhn\u2013Tucker conditions","level":2,"score":0.7054631114006042},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.6158829927444458},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6003629565238953},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5992565751075745},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.5550091862678528},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.5361214876174927},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.5354291200637817},{"id":"https://openalex.org/C159694833","wikidata":"https://www.wikidata.org/wiki/Q2321565","display_name":"Iterative method","level":2,"score":0.5173913240432739},{"id":"https://openalex.org/C2776330181","wikidata":"https://www.wikidata.org/wiki/Q18358244","display_name":"Maximization","level":2,"score":0.4718513488769531},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.45342138409614563},{"id":"https://openalex.org/C173801870","wikidata":"https://www.wikidata.org/wiki/Q201413","display_name":"Heuristic","level":2,"score":0.4531172215938568},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.4356735944747925},{"id":"https://openalex.org/C73555534","wikidata":"https://www.wikidata.org/wiki/Q622825","display_name":"Cluster analysis","level":2,"score":0.41290971636772156},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3989437222480774},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.3918437957763672},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2700066566467285},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.11715129017829895},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/glocom.2018.8647663","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2018.8647663","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 IEEE Global Communications Conference (GLOBECOM)","raw_type":"proceedings-article"},{"id":"pmh:oai:oulu.fi:nbnfi-fe2019061920976","is_oa":false,"landing_page_url":"http://urn.fi/urn:nbn:fi-fe2019061920976","pdf_url":null,"source":{"id":"https://openalex.org/S4306400284","display_name":"University of Oulu Repository (University of Oulu)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I98381234","host_organization_name":"University of Oulu","host_organization_lineage":["https://openalex.org/I98381234"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W1496344798","https://openalex.org/W1987998902","https://openalex.org/W2015301486","https://openalex.org/W2035750833","https://openalex.org/W2041287972","https://openalex.org/W2071767586","https://openalex.org/W2103972037","https://openalex.org/W2118356983","https://openalex.org/W2119016516","https://openalex.org/W2128513990","https://openalex.org/W2147601077","https://openalex.org/W2295566694","https://openalex.org/W2338858490","https://openalex.org/W2339410153","https://openalex.org/W2341062043","https://openalex.org/W2544795213","https://openalex.org/W2885065554","https://openalex.org/W2962785465","https://openalex.org/W3106282754","https://openalex.org/W4239066252","https://openalex.org/W4250589301"],"related_works":["https://openalex.org/W2155858901","https://openalex.org/W4382519099","https://openalex.org/W2491194410","https://openalex.org/W2917933030","https://openalex.org/W1515727993","https://openalex.org/W2037179686","https://openalex.org/W2802398440","https://openalex.org/W2085074295","https://openalex.org/W3141240674","https://openalex.org/W3011927635"],"abstract_inverted_index":{"We":[0,108],"consider":[1],"a":[2,25,184,196],"single":[3],"cell":[4],"downlink":[5],"(DL)":[6],"massive":[7],"multiple-input":[8],"multiple-output":[9],"(MIMO)":[10],"set":[11],"up":[12],"with":[13,92,126,160,199],"user":[14,127],"clustering":[15],"based":[16,37],"on":[17],"statistical":[18],"information.":[19],"The":[20,204],"problem":[21,91],"is":[22,99,118,172],"to":[23,52,67,74,101,134,195],"design":[24,68,114,147],"fully":[26],"digital":[27],"two":[28],"stage":[29],"beamforming":[30],"consisting":[31],"of":[32,78,182,208],"slow":[33],"varying":[34],"channel":[35,49,81],"statistics":[36],"outer":[38],"beamformer":[39,44,146],"(OBF)":[40],"and":[41],"an":[42,141],"inner":[43],"(IBF)":[45],"accounting":[46],"for":[47,83,105,121,144,153,175],"fast":[48],"variations":[50],"aiming":[51],"reduce":[53,75,136],"the":[54,58,69,76,79,103,116,137,149,177,189,200],"complexity":[55,168,191],"involved":[56],"in":[57,187],"conventional":[59],"MIMO":[60],"processing.":[61,203],"Two":[62],"different":[63],"methods":[64],"are":[65,212],"considered":[66],"OBF":[70],"matrix,":[71],"so":[72],"as":[73],"size":[77],"effective":[80],"used":[82],"IBF":[84,104,113],"design.":[85],"A":[86,166],"group":[87,124,156,162,201],"specific":[88,128,202],"two-stage":[89],"optimization":[90,117],"weighted":[93],"sum":[94,205],"rate":[95,206],"maximization":[96],"(WSRM)":[97],"objective":[98],"formulated":[100],"find":[102],"fixed":[106,154],"OBF.":[107],"begin":[109],"by":[110],"proposing":[111],"centralized":[112],"were":[115],"carried":[119],"out":[120],"all":[122],"sub":[123],"jointly":[125],"inter-group":[129,178],"interference":[130,157],"constraints.":[131],"In":[132,180],"order":[133],"further":[135],"complexity,":[138],"we":[139],"propose":[140],"iterative":[142,170],"solution":[143],"group-specific":[145],"via":[148],"Karush-Kuhn-Tucker":[150],"(KKT)":[151],"conditions":[152],"inter":[155],"(IGI)":[158],"values":[159],"per":[161],"transmit":[163],"power":[164],"constraint.":[165],"low":[167],"heuristic":[169],"method":[171],"also":[173],"proposed":[174,210],"managing":[176],"interference.":[179],"spite":[181],"incurring":[183],"small":[185],"loss":[186],"performance,":[188],"computational":[190],"can":[192],"be":[193],"saved":[194],"large":[197],"extent":[198],"behavior":[207],"various":[209],"schemes":[211],"illustrated":[213],"using":[214],"numerical":[215],"simulations.":[216]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":4}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}