{"id":"https://openalex.org/W2061836618","doi":"https://doi.org/10.1109/tcomm.2014.2323051","title":"Downlink Beamforming in Underlay Cognitive Cellular Networks","display_name":"Downlink Beamforming in Underlay Cognitive Cellular Networks","publication_year":2014,"publication_date":"2014-05-12","ids":{"openalex":"https://openalex.org/W2061836618","doi":"https://doi.org/10.1109/tcomm.2014.2323051","mag":"2061836618"},"language":"en","primary_location":{"id":"doi:10.1109/tcomm.2014.2323051","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2014.2323051","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Communications","raw_type":"journal-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/A5100458415","display_name":"Tuan Anh Le","orcid":"https://orcid.org/0000-0003-0612-3717"},"institutions":[{"id":"https://openalex.org/I130828816","display_name":"University of Leeds","ror":"https://ror.org/024mrxd33","country_code":"GB","type":"education","lineage":["https://openalex.org/I130828816"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Tuan Anh Le","raw_affiliation_strings":["School of Electronic and Electrical Engineering, University of Leeds, Leeds, U.K","Sch. of Electron. & Electr. Eng., Univ. of Leeds, Leeds, UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronic and Electrical Engineering, University of Leeds, Leeds, U.K","institution_ids":["https://openalex.org/I130828816"]},{"raw_affiliation_string":"Sch. of Electron. & Electr. Eng., Univ. of Leeds, Leeds, UK","institution_ids":["https://openalex.org/I130828816"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5022880485","display_name":"Keivan Navaie","orcid":"https://orcid.org/0000-0002-4399-6472"},"institutions":[{"id":"https://openalex.org/I130828816","display_name":"University of Leeds","ror":"https://ror.org/024mrxd33","country_code":"GB","type":"education","lineage":["https://openalex.org/I130828816"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Keivan Navaie","raw_affiliation_strings":["School of Electronic and Electrical Engineering, University of Leeds, Leeds, U.K","Sch. of Electron. & Electr. Eng., Univ. of Leeds, Leeds, UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronic and Electrical Engineering, University of Leeds, Leeds, U.K","institution_ids":["https://openalex.org/I130828816"]},{"raw_affiliation_string":"Sch. of Electron. & Electr. Eng., Univ. of Leeds, Leeds, UK","institution_ids":["https://openalex.org/I130828816"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I130828816"],"apc_list":null,"apc_paid":null,"fwci":1.6575,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.86029549,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"62","issue":"7","first_page":"2212","last_page":"2223"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"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"}},"topics":[{"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":0.9998000264167786,"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"}},{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9994000196456909,"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/beamforming","display_name":"Beamforming","score":0.7669863700866699},{"id":"https://openalex.org/keywords/underlay","display_name":"Underlay","score":0.7447491884231567},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.7192155122756958},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6802417039871216},{"id":"https://openalex.org/keywords/cognitive-radio","display_name":"Cognitive radio","score":0.5370067358016968},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.5214240550994873},{"id":"https://openalex.org/keywords/iterative-method","display_name":"Iterative method","score":0.5079396367073059},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.5032734274864197},{"id":"https://openalex.org/keywords/benchmarking","display_name":"Benchmarking","score":0.49185776710510254},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.49121564626693726},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.4843665063381195},{"id":"https://openalex.org/keywords/signal-to-noise-ratio","display_name":"Signal-to-noise ratio (imaging)","score":0.44773054122924805},{"id":"https://openalex.org/keywords/convergence","display_name":"Convergence (economics)","score":0.4339521825313568},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.39195698499679565},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3531050682067871},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1916339099407196},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.18529227375984192},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.18094345927238464},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1772075891494751},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.09003257751464844}],"concepts":[{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.7669863700866699},{"id":"https://openalex.org/C2777679929","wikidata":"https://www.wikidata.org/wiki/Q7883709","display_name":"Underlay","level":3,"score":0.7447491884231567},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7192155122756958},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6802417039871216},{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.5370067358016968},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.5214240550994873},{"id":"https://openalex.org/C159694833","wikidata":"https://www.wikidata.org/wiki/Q2321565","display_name":"Iterative method","level":2,"score":0.5079396367073059},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.5032734274864197},{"id":"https://openalex.org/C86251818","wikidata":"https://www.wikidata.org/wiki/Q816754","display_name":"Benchmarking","level":2,"score":0.49185776710510254},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.49121564626693726},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.4843665063381195},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.44773054122924805},{"id":"https://openalex.org/C2777303404","wikidata":"https://www.wikidata.org/wiki/Q759757","display_name":"Convergence (economics)","level":2,"score":0.4339521825313568},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.39195698499679565},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3531050682067871},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1916339099407196},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.18529227375984192},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.18094345927238464},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1772075891494751},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.09003257751464844},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.0},{"id":"https://openalex.org/C162853370","wikidata":"https://www.wikidata.org/wiki/Q39809","display_name":"Marketing","level":1,"score":0.0},{"id":"https://openalex.org/C50522688","wikidata":"https://www.wikidata.org/wiki/Q189833","display_name":"Economic growth","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/tcomm.2014.2323051","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2014.2323051","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Communications","raw_type":"journal-article"},{"id":"pmh:oai:eprints.whiterose.ac.uk:81400","is_oa":false,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4306400854","display_name":"White Rose Research Online (University of Leeds, The University of Sheffield, University of York)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I2800616092","host_organization_name":"White Rose University Consortium","host_organization_lineage":["https://openalex.org/I2800616092"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"","raw_type":"Article"},{"id":"pmh:oai:eprints.mdx.ac.uk:16816","is_oa":false,"landing_page_url":"http://eprints.mdx.ac.uk/16816/","pdf_url":null,"source":{"id":"https://openalex.org/S4306400025","display_name":"Middlesex University Research Repository (Middlesex University Of London)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I60488453","host_organization_name":"Middlesex University","host_organization_lineage":["https://openalex.org/I60488453"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G828339459","display_name":null,"funder_award_id":"EP/K005111/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G8788083385","display_name":null,"funder_award_id":"EP/K/022725/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"}],"funders":[{"id":"https://openalex.org/F4320334627","display_name":"Engineering and Physical Sciences Research Council","ror":"https://ror.org/0439y7842"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":30,"referenced_works":["https://openalex.org/W1574923065","https://openalex.org/W1642407538","https://openalex.org/W1975770423","https://openalex.org/W2015263936","https://openalex.org/W2073314878","https://openalex.org/W2079032052","https://openalex.org/W2086609228","https://openalex.org/W2096439448","https://openalex.org/W2101727634","https://openalex.org/W2101755519","https://openalex.org/W2109005286","https://openalex.org/W2117987323","https://openalex.org/W2121233130","https://openalex.org/W2122744491","https://openalex.org/W2131147870","https://openalex.org/W2131350052","https://openalex.org/W2143710958","https://openalex.org/W2145486800","https://openalex.org/W2152587757","https://openalex.org/W2160631319","https://openalex.org/W2161473225","https://openalex.org/W2164271287","https://openalex.org/W2165350939","https://openalex.org/W2168233017","https://openalex.org/W2296319761","https://openalex.org/W2475277888","https://openalex.org/W4211092921","https://openalex.org/W4250589301","https://openalex.org/W4295016751","https://openalex.org/W6610930706"],"related_works":["https://openalex.org/W2769590643","https://openalex.org/W2169642774","https://openalex.org/W2002735621","https://openalex.org/W2532161418","https://openalex.org/W2556201531","https://openalex.org/W4299415705","https://openalex.org/W2949913192","https://openalex.org/W1482197907","https://openalex.org/W2290175079","https://openalex.org/W2063322879"],"abstract_inverted_index":{"We":[0,65,92,116],"propose":[1,79],"a":[2,54,123,165,186],"novel":[3],"scheme":[4,121],"for":[5,73],"downlink":[6],"beamforming":[7,16,86],"design":[8,17],"in":[9,133,169],"an":[10,21,80],"underlay":[11],"cognitive":[12,30],"cellular":[13],"system.":[14,174],"The":[15],"is":[18,50,157],"formulated":[19,75],"as":[20,35,37,88],"optimization":[22,76],"problem":[23,77],"with":[24,122],"the":[25,29,38,42,62,68,74,85,89,96,99,107,113,119,129,134,140,144,152,161,172,180,201,205],"objective":[26],"of":[27,57,98],"keeping":[28],"base":[31],"station":[32],"transmit":[33],"power":[34],"well":[36],"induced":[39],"interference":[40,150,197],"on":[41,128],"primary":[43,153,202],"users,":[44],"below":[45],"predefined":[46],"system":[47,125,146,203,207],"thresholds.":[48],"This":[49],"subject":[51],"to":[52,61,83,112,171,209],"providing":[53],"certain":[55],"level":[56,190],"signal-to-interference-plus-noise":[58],"ratio":[59],"(SINR)":[60],"secondary":[63,193],"users.":[64],"then":[66,117],"derive":[67],"corresponding":[69],"semidefinite":[70],"programming":[71],"form":[72],"and":[78,147,195],"iterative":[81,101],"algorithm":[82,109,142,163],"obtain":[84],"vectors":[87],"optimal":[90,114],"solutions.":[91],"further":[93,177],"analytically":[94],"show":[95,138],"convergence":[97],"proposed":[100,108,120,132,141,162,181],"algorithm.":[102],"Extensive":[103],"simulations":[104],"verify":[105],"that":[106,139,160,179],"quickly":[110],"converges":[111],"solution.":[115],"compare":[118],"benchmarking":[124,145,173,206],"defined":[126],"based":[127],"previous":[130],"methods":[131],"related":[135],"literature.":[136],"Comparisons":[137],"outperforms":[143],"induces":[148],"lower":[149],"at":[151,185],"service":[154],"receivers.":[155],"It":[156],"also":[158],"observed":[159],"offers":[164],"higher":[166],"sum":[167],"rate":[168],"comparison":[170],"Simulation":[175],"results":[176],"reveal":[178],"approach":[182],"effectively":[183],"works":[184],"relatively":[187],"high":[188],"SINR":[189],"required":[191],"by":[192,200],"users":[194],"strict":[196],"threshold":[198],"set":[199],"while":[204],"fails":[208],"do":[210],"so.":[211]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
