{"id":"https://openalex.org/W4285179008","doi":"https://doi.org/10.1109/lwc.2022.3184166","title":"RF Precoding for Cognitive Radio Systems","display_name":"RF Precoding for Cognitive Radio Systems","publication_year":2022,"publication_date":"2022-06-17","ids":{"openalex":"https://openalex.org/W4285179008","doi":"https://doi.org/10.1109/lwc.2022.3184166"},"language":"en","primary_location":{"id":"doi:10.1109/lwc.2022.3184166","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2022.3184166","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["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 Wireless Communications Letters","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://orbilu.uni.lu/handle/10993/53155","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5074241486","display_name":"Christos G. Tsinos","orcid":"https://orcid.org/0000-0002-4790-1477"},"institutions":[{"id":"https://openalex.org/I186903577","display_name":"University of Luxembourg","ror":"https://ror.org/036x5ad56","country_code":"LU","type":"education","lineage":["https://openalex.org/I186903577"]},{"id":"https://openalex.org/I200777214","display_name":"National and Kapodistrian University of Athens","ror":"https://ror.org/04gnjpq42","country_code":"GR","type":"education","lineage":["https://openalex.org/I200777214"]}],"countries":["GR","LU"],"is_corresponding":true,"raw_author_name":"Christos G. Tsinos","raw_affiliation_strings":["Interdisciplinary Centre for Security, Reliability and Trust, University of Luxembourg, Luxembourg City, Luxembourg","Core Department, National and Kapodistrian University of Athens, Athens, Greece"],"affiliations":[{"raw_affiliation_string":"Interdisciplinary Centre for Security, Reliability and Trust, University of Luxembourg, Luxembourg City, Luxembourg","institution_ids":["https://openalex.org/I186903577"]},{"raw_affiliation_string":"Core Department, National and Kapodistrian University of Athens, Athens, Greece","institution_ids":["https://openalex.org/I200777214"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016154330","display_name":"Symeon Chatzinotas","orcid":"https://orcid.org/0000-0001-5122-0001"},"institutions":[{"id":"https://openalex.org/I186903577","display_name":"University of Luxembourg","ror":"https://ror.org/036x5ad56","country_code":"LU","type":"education","lineage":["https://openalex.org/I186903577"]}],"countries":["LU"],"is_corresponding":false,"raw_author_name":"Symeon Chatzinotas","raw_affiliation_strings":["Interdisciplinary Centre for Security, Reliability and Trust, University of Luxembourg, Luxembourg City, Luxembourg"],"affiliations":[{"raw_affiliation_string":"Interdisciplinary Centre for Security, Reliability and Trust, University of Luxembourg, Luxembourg City, Luxembourg","institution_ids":["https://openalex.org/I186903577"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5080037825","display_name":"Bj\u00f6rn Ottersten","orcid":"https://orcid.org/0000-0003-2298-6774"},"institutions":[{"id":"https://openalex.org/I186903577","display_name":"University of Luxembourg","ror":"https://ror.org/036x5ad56","country_code":"LU","type":"education","lineage":["https://openalex.org/I186903577"]}],"countries":["LU"],"is_corresponding":false,"raw_author_name":"Bjorn Ottersten","raw_affiliation_strings":["Interdisciplinary Centre for Security, Reliability and Trust, University of Luxembourg, Luxembourg City, Luxembourg"],"affiliations":[{"raw_affiliation_string":"Interdisciplinary Centre for Security, Reliability and Trust, University of Luxembourg, Luxembourg City, Luxembourg","institution_ids":["https://openalex.org/I186903577"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5074241486"],"corresponding_institution_ids":["https://openalex.org/I186903577","https://openalex.org/I200777214"],"apc_list":null,"apc_paid":null,"fwci":0.1427,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.47674589,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"11","issue":"9","first_page":"1845","last_page":"1849"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","score":1.0,"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/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","score":1.0,"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/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/T12791","display_name":"Full-Duplex Wireless Communications","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"}}],"keywords":[{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.7808892130851746},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6826483011245728},{"id":"https://openalex.org/keywords/cognitive-radio","display_name":"Cognitive radio","score":0.6761437654495239},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.6026376485824585},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.5802068710327148},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.5713642239570618},{"id":"https://openalex.org/keywords/software-defined-radio","display_name":"Software-defined radio","score":0.5575041770935059},{"id":"https://openalex.org/keywords/radio-frequency","display_name":"Radio frequency","score":0.522469162940979},{"id":"https://openalex.org/keywords/transmitter-power-output","display_name":"Transmitter power output","score":0.45432746410369873},{"id":"https://openalex.org/keywords/converters","display_name":"Converters","score":0.4295901656150818},{"id":"https://openalex.org/keywords/transceiver","display_name":"Transceiver","score":0.41445696353912354},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.2786969542503357},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.27097898721694946},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2359088659286499},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.16542845964431763},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.1557542085647583},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.0829058587551117}],"concepts":[{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.7808892130851746},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6826483011245728},{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.6761437654495239},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.6026376485824585},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.5802068710327148},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5713642239570618},{"id":"https://openalex.org/C171115542","wikidata":"https://www.wikidata.org/wiki/Q1331892","display_name":"Software-defined radio","level":2,"score":0.5575041770935059},{"id":"https://openalex.org/C74064498","wikidata":"https://www.wikidata.org/wiki/Q3396184","display_name":"Radio frequency","level":2,"score":0.522469162940979},{"id":"https://openalex.org/C65422117","wikidata":"https://www.wikidata.org/wiki/Q358527","display_name":"Transmitter power output","level":4,"score":0.45432746410369873},{"id":"https://openalex.org/C2778422915","wikidata":"https://www.wikidata.org/wiki/Q10302051","display_name":"Converters","level":3,"score":0.4295901656150818},{"id":"https://openalex.org/C7720470","wikidata":"https://www.wikidata.org/wiki/Q954187","display_name":"Transceiver","level":3,"score":0.41445696353912354},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.2786969542503357},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.27097898721694946},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2359088659286499},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.16542845964431763},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.1557542085647583},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.0829058587551117},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.0},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/lwc.2022.3184166","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2022.3184166","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["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 Wireless Communications Letters","raw_type":"journal-article"},{"id":"pmh:oai:orbilu.uni.lu:10993/53155","is_oa":true,"landing_page_url":"http://orbilu.uni.lu/handle/10993/53155","pdf_url":null,"source":{"id":"https://openalex.org/S4306401815","display_name":"Open Repository and Bibliography (University of Luxembourg)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I186903577","host_organization_name":"University of Luxembourg","host_organization_lineage":["https://openalex.org/I186903577"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-sa","license_id":"https://openalex.org/licenses/cc-by-nc-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":null}],"best_oa_location":{"id":"pmh:oai:orbilu.uni.lu:10993/53155","is_oa":true,"landing_page_url":"http://orbilu.uni.lu/handle/10993/53155","pdf_url":null,"source":{"id":"https://openalex.org/S4306401815","display_name":"Open Repository and Bibliography (University of Luxembourg)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I186903577","host_organization_name":"University of Luxembourg","host_organization_lineage":["https://openalex.org/I186903577"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-sa","license_id":"https://openalex.org/licenses/cc-by-nc-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":null},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.9100000262260437}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W1974708997","https://openalex.org/W2007104311","https://openalex.org/W2015377897","https://openalex.org/W2070240105","https://openalex.org/W2096380022","https://openalex.org/W2124301782","https://openalex.org/W2127593435","https://openalex.org/W2152481521","https://openalex.org/W2904556689","https://openalex.org/W3016074254","https://openalex.org/W3081798214"],"related_works":["https://openalex.org/W2162075876","https://openalex.org/W2487859980","https://openalex.org/W2545213287","https://openalex.org/W2887315079","https://openalex.org/W2079465364","https://openalex.org/W2033764231","https://openalex.org/W4224939014","https://openalex.org/W2030368391","https://openalex.org/W1989642027","https://openalex.org/W2941618935"],"abstract_inverted_index":{"In":[0],"this":[1],"letter,":[2],"a":[3,17,27,47,76,128],"precoding":[4],"framework":[5],"in":[6],"the":[7,14,37,64,81,84,91,94,100,105,109,134,141],"radio-frequency":[8],"(RF)":[9],"domain":[10],"is":[11,34,44,87,97,123,145,151],"developed":[12,88],"for":[13,36,80],"downlink":[15],"of":[16,66,83,93,140],"multiuser":[18],"multiple-input":[19],"single-output":[20],"underlay":[21,111],"cognitive":[22],"radio":[23],"(CR)":[24],"system.":[25],"Firstly,":[26],"low":[28,58],"hardware":[29],"complexity":[30],"analog":[31,42],"multiantenna":[32],"architecture":[33,43,107],"proposed":[35,41,142,149],"system\u2019s":[38,106],"transmitter.":[39],"The":[40,116,138,148],"based":[45,132,162],"on":[46,133,163],"phase-shifting":[48],"network":[49],"driven":[50],"by":[51],"an":[52],"variable":[53],"gain":[54],"amplifier":[55],"and":[56,99,108,119,125],"has":[57],"power":[59],"consumption":[60],"since":[61],"it":[62],"avoids":[63],"use":[65],"energy":[67,157],"hungry":[68],"components":[69],"such":[70,89],"as":[71],"digital-to-analog":[72],"converters":[73],"(DACs).":[74],"Secondly,":[75],"novel":[77,129],"RF":[78],"precoder":[79],"design":[82],"transmit":[85],"signals":[86],"that":[90],"performance":[92],"CR":[95,112],"system":[96],"optimized":[98],"constraints":[101],"related":[102],"to":[103,153],"both":[104],"employed":[110],"paradigm":[113],"are":[114],"satisfied.":[115],"corresponding":[117],"nonconvex":[118],"difficult":[120],"optimization":[121],"problem":[122],"formulated":[124],"solved":[126],"via":[127],"algorithmic":[130,143],"solution":[131,144],"saddle":[135],"point":[136],"method.":[137],"convergence":[139],"theoretically":[146],"studied.":[147],"approach":[150],"shown":[152],"be":[154],"much":[155],"more":[156],"efficient":[158],"than":[159],"existing":[160],"approaches":[161],"fully":[164],"digital":[165],"transceivers.":[166]},"counts_by_year":[{"year":2023,"cited_by_count":1}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}
