{"id":"https://openalex.org/W2097551077","doi":"https://doi.org/10.1109/wcnc.2009.4917611","title":"Beamforming and Power Control for Multi-Antenna Cognitive Two-Way Relaying","display_name":"Beamforming and Power Control for Multi-Antenna Cognitive Two-Way Relaying","publication_year":2009,"publication_date":"2009-04-01","ids":{"openalex":"https://openalex.org/W2097551077","doi":"https://doi.org/10.1109/wcnc.2009.4917611","mag":"2097551077"},"language":"en","primary_location":{"id":"doi:10.1109/wcnc.2009.4917611","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcnc.2009.4917611","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE Wireless Communications and Networking 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/A5056990131","display_name":"Kommate Jitvanichphaibool","orcid":null},"institutions":[{"id":"https://openalex.org/I115228651","display_name":"Agency for Science, Technology and Research","ror":"https://ror.org/036wvzt09","country_code":"SG","type":"government","lineage":["https://openalex.org/I115228651"]},{"id":"https://openalex.org/I3005327000","display_name":"Institute for Infocomm Research","ror":"https://ror.org/053rfa017","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I3005327000","https://openalex.org/I91275662"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Kommate Jitvanichphaibool","raw_affiliation_strings":["Institute of Infocomm Research, Agency for Science, Technology and Research, Singapore","Institute for Infocomm Research, A-star, Singapore"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Infocomm Research, Agency for Science, Technology and Research, Singapore","institution_ids":["https://openalex.org/I115228651","https://openalex.org/I3005327000"]},{"raw_affiliation_string":"Institute for Infocomm Research, A-star, Singapore","institution_ids":["https://openalex.org/I3005327000"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007832415","display_name":"Ying\u2010Chang Liang","orcid":"https://orcid.org/0000-0003-2671-5090"},"institutions":[{"id":"https://openalex.org/I115228651","display_name":"Agency for Science, Technology and Research","ror":"https://ror.org/036wvzt09","country_code":"SG","type":"government","lineage":["https://openalex.org/I115228651"]},{"id":"https://openalex.org/I3005327000","display_name":"Institute for Infocomm Research","ror":"https://ror.org/053rfa017","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I3005327000","https://openalex.org/I91275662"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Ying-Chang Liang","raw_affiliation_strings":["Institute of Infocomm Research, Agency for Science, Technology and Research, Singapore","Institute for Infocomm Research, A-star, Singapore"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Infocomm Research, Agency for Science, Technology and Research, Singapore","institution_ids":["https://openalex.org/I115228651","https://openalex.org/I3005327000"]},{"raw_affiliation_string":"Institute for Infocomm Research, A-star, Singapore","institution_ids":["https://openalex.org/I3005327000"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100422102","display_name":"Rui Zhang","orcid":"https://orcid.org/0000-0002-8729-8393"},"institutions":[{"id":"https://openalex.org/I115228651","display_name":"Agency for Science, Technology and Research","ror":"https://ror.org/036wvzt09","country_code":"SG","type":"government","lineage":["https://openalex.org/I115228651"]},{"id":"https://openalex.org/I3005327000","display_name":"Institute for Infocomm Research","ror":"https://ror.org/053rfa017","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I3005327000","https://openalex.org/I91275662"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Rui Zhang","raw_affiliation_strings":["Institute of Infocomm Research, Agency for Science, Technology and Research, Singapore","Institute for Infocomm Research, A-star, Singapore"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Infocomm Research, Agency for Science, Technology and Research, Singapore","institution_ids":["https://openalex.org/I115228651","https://openalex.org/I3005327000"]},{"raw_affiliation_string":"Institute for Infocomm Research, A-star, Singapore","institution_ids":["https://openalex.org/I3005327000"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":8.1089,"has_fulltext":false,"cited_by_count":87,"citation_normalized_percentile":{"value":0.98531319,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":100},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9998999834060669,"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/T12791","display_name":"Full-Duplex Wireless Communications","score":0.9997000098228455,"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/T10964","display_name":"Wireless Communication Security Techniques","score":0.9979000091552734,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/relay","display_name":"Relay","score":0.770796000957489},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.7449911236763},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.7436675429344177},{"id":"https://openalex.org/keywords/transmitter-power-output","display_name":"Transmitter power output","score":0.7158939838409424},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6708698272705078},{"id":"https://openalex.org/keywords/cognitive-radio","display_name":"Cognitive radio","score":0.6611343026161194},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.5572239756584167},{"id":"https://openalex.org/keywords/power-control","display_name":"Power control","score":0.5557658076286316},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5084825754165649},{"id":"https://openalex.org/keywords/subspace-topology","display_name":"Subspace topology","score":0.48913291096687317},{"id":"https://openalex.org/keywords/relay-channel","display_name":"Relay channel","score":0.48583075404167175},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.4672662317752838},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.3696359097957611},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.3495568335056305},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.32600465416908264},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.29510653018951416},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.226558119058609},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.1418153941631317},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.07123807072639465}],"concepts":[{"id":"https://openalex.org/C2778156585","wikidata":"https://www.wikidata.org/wiki/Q174053","display_name":"Relay","level":3,"score":0.770796000957489},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.7449911236763},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.7436675429344177},{"id":"https://openalex.org/C65422117","wikidata":"https://www.wikidata.org/wiki/Q358527","display_name":"Transmitter power output","level":4,"score":0.7158939838409424},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6708698272705078},{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.6611343026161194},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.5572239756584167},{"id":"https://openalex.org/C56685638","wikidata":"https://www.wikidata.org/wiki/Q2300474","display_name":"Power control","level":3,"score":0.5557658076286316},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5084825754165649},{"id":"https://openalex.org/C32834561","wikidata":"https://www.wikidata.org/wiki/Q660730","display_name":"Subspace topology","level":2,"score":0.48913291096687317},{"id":"https://openalex.org/C46257984","wikidata":"https://www.wikidata.org/wiki/Q7310895","display_name":"Relay channel","level":4,"score":0.48583075404167175},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.4672662317752838},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3696359097957611},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.3495568335056305},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.32600465416908264},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.29510653018951416},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.226558119058609},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.1418153941631317},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.07123807072639465},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/wcnc.2009.4917611","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcnc.2009.4917611","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE Wireless Communications and Networking Conference","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":14,"referenced_works":["https://openalex.org/W1751167696","https://openalex.org/W2003889804","https://openalex.org/W2014786564","https://openalex.org/W2063773941","https://openalex.org/W2071707134","https://openalex.org/W2096219345","https://openalex.org/W2115165535","https://openalex.org/W2119523314","https://openalex.org/W2143005940","https://openalex.org/W2148124193","https://openalex.org/W2152121970","https://openalex.org/W2153090463","https://openalex.org/W2296319761","https://openalex.org/W4250589301"],"related_works":["https://openalex.org/W2075530143","https://openalex.org/W1965566556","https://openalex.org/W2595297530","https://openalex.org/W2489619855","https://openalex.org/W2152137554","https://openalex.org/W2124240980","https://openalex.org/W2787091472","https://openalex.org/W2110879650","https://openalex.org/W2519403816","https://openalex.org/W2119435011"],"abstract_inverted_index":{"This":[0],"paper":[1],"considers":[2],"a":[3,19,35,48],"cooperative":[4],"and":[5,76,88,96,105,118,162],"cognitive":[6,60],"radio":[7],"(CCR)":[8],"system":[9],"where":[10],"two":[11],"secondary":[12],"users":[13],"(SUs)":[14],"exchange":[15],"their":[16],"information":[17,66],"through":[18],"\"cognitive\"":[20],"relay":[21,85,103,154],"station":[22],"(RS)":[23],"via":[24],"the":[25,31,41,45,55,59,63,72,78,84,89,94,101,111,132,139,149,152,159,166,169],"two-way":[26],"relaying.":[27],"The":[28,98],"SUs":[29,81],"share":[30],"same":[32],"spectrum":[33],"with":[34,156],"primary":[36],"user":[37],"(PU)":[38],"while":[39],"maintaining":[40],"interference":[42,140],"power":[43,91,125,134,141,171],"at":[44],"PU":[46,75],"under":[47],"certain":[49],"level.":[50],"In":[51,123],"order":[52],"to":[53,74,80,82,130,147,164],"enhance":[54],"achievable":[56],"sum":[57],"rate,":[58],"RS":[61,73,79,95],"exploits":[62],"channel":[64,69],"state":[65],"(CSI)":[67],"of":[68,100,151,158,168],"links":[70],"from":[71,77],"determine":[83],"beamforming":[86],"(BF)":[87],"transmit":[90,133],"levels":[92],"for":[93],"SUs.":[97],"structures":[99],"optimal":[102,153,170],"BF":[104,107,155],"suboptimal":[106,160],"schemes":[108],"based":[109],"on":[110],"subspace":[112],"projection":[113,120],"are":[114,121,128,145],"presented.":[115],"Both":[116],"orthogonal":[117],"non-orthogonal":[119],"considered.":[122],"addition,":[124],"control":[126],"algorithms":[127],"proposed":[129],"satisfy":[131],"constraints":[135],"as":[136,138],"well":[137],"constraints.":[142],"Numerical":[143],"results":[144],"provided":[146],"compare":[148],"performance":[150],"that":[157],"ones":[161],"also":[163],"justify":[165],"benefit":[167],"allocation.":[172]},"counts_by_year":[{"year":2018,"cited_by_count":4},{"year":2017,"cited_by_count":5},{"year":2016,"cited_by_count":5},{"year":2015,"cited_by_count":7},{"year":2014,"cited_by_count":15},{"year":2013,"cited_by_count":21},{"year":2012,"cited_by_count":14}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}
