{"id":"https://openalex.org/W2093826177","doi":"https://doi.org/10.1109/vetecf.2011.6093009","title":"Energy Efficient Two-Way AF Relay System with Multiple-Antennas","display_name":"Energy Efficient Two-Way AF Relay System with Multiple-Antennas","publication_year":2011,"publication_date":"2011-09-01","ids":{"openalex":"https://openalex.org/W2093826177","doi":"https://doi.org/10.1109/vetecf.2011.6093009","mag":"2093826177"},"language":"en","primary_location":{"id":"doi:10.1109/vetecf.2011.6093009","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vetecf.2011.6093009","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE Vehicular Technology Conference (VTC Fall)","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/A5021716651","display_name":"Hongjoon Kim","orcid":"https://orcid.org/0000-0002-0470-1512"},"institutions":[{"id":"https://openalex.org/I157485424","display_name":"Korea Advanced Institute of Science and Technology","ror":"https://ror.org/05apxxy63","country_code":"KR","type":"education","lineage":["https://openalex.org/I157485424"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Hongjoon Kim","raw_affiliation_strings":["Korea Advanced Institute of Science and Technology (KAIST), South Korea","Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea#TAB#"],"affiliations":[{"raw_affiliation_string":"Korea Advanced Institute of Science and Technology (KAIST), South Korea","institution_ids":["https://openalex.org/I157485424"]},{"raw_affiliation_string":"Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea#TAB#","institution_ids":["https://openalex.org/I157485424"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006740470","display_name":"Namjeong Lee","orcid":null},"institutions":[{"id":"https://openalex.org/I157485424","display_name":"Korea Advanced Institute of Science and Technology","ror":"https://ror.org/05apxxy63","country_code":"KR","type":"education","lineage":["https://openalex.org/I157485424"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Namjeong Lee","raw_affiliation_strings":["Korea Advanced Institute of Science and Technology (KAIST), South Korea","Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea#TAB#"],"affiliations":[{"raw_affiliation_string":"Korea Advanced Institute of Science and Technology (KAIST), South Korea","institution_ids":["https://openalex.org/I157485424"]},{"raw_affiliation_string":"Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea#TAB#","institution_ids":["https://openalex.org/I157485424"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5062994489","display_name":"Joonhyuk Kang","orcid":"https://orcid.org/0000-0002-5508-3742"},"institutions":[{"id":"https://openalex.org/I157485424","display_name":"Korea Advanced Institute of Science and Technology","ror":"https://ror.org/05apxxy63","country_code":"KR","type":"education","lineage":["https://openalex.org/I157485424"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Joonhyuk Kang","raw_affiliation_strings":["Korea Advanced Institute of Science and Technology (KAIST), South Korea","Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea#TAB#"],"affiliations":[{"raw_affiliation_string":"Korea Advanced Institute of Science and Technology (KAIST), South Korea","institution_ids":["https://openalex.org/I157485424"]},{"raw_affiliation_string":"Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea#TAB#","institution_ids":["https://openalex.org/I157485424"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5021716651"],"corresponding_institution_ids":["https://openalex.org/I157485424"],"apc_list":null,"apc_paid":null,"fwci":1.7504,"has_fulltext":false,"cited_by_count":12,"citation_normalized_percentile":{"value":0.85543338,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9998000264167786,"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"}},"topics":[{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","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/T12791","display_name":"Full-Duplex Wireless Communications","score":0.9988999962806702,"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":0.9926000237464905,"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":0.8004990816116333},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.7081311345100403},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6449945569038391},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.5830494165420532},{"id":"https://openalex.org/keywords/transmitter-power-output","display_name":"Transmitter power output","score":0.5791451930999756},{"id":"https://openalex.org/keywords/iterative-method","display_name":"Iterative method","score":0.5650165677070618},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.5594123005867004},{"id":"https://openalex.org/keywords/quality-of-service","display_name":"Quality of service","score":0.5492527484893799},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.4492255747318268},{"id":"https://openalex.org/keywords/energy","display_name":"Energy (signal processing)","score":0.4361857771873474},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.2841566205024719},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2450045645236969},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.21985331177711487}],"concepts":[{"id":"https://openalex.org/C2778156585","wikidata":"https://www.wikidata.org/wiki/Q174053","display_name":"Relay","level":3,"score":0.8004990816116333},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.7081311345100403},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6449945569038391},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.5830494165420532},{"id":"https://openalex.org/C65422117","wikidata":"https://www.wikidata.org/wiki/Q358527","display_name":"Transmitter power output","level":4,"score":0.5791451930999756},{"id":"https://openalex.org/C159694833","wikidata":"https://www.wikidata.org/wiki/Q2321565","display_name":"Iterative method","level":2,"score":0.5650165677070618},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.5594123005867004},{"id":"https://openalex.org/C5119721","wikidata":"https://www.wikidata.org/wiki/Q220501","display_name":"Quality of service","level":2,"score":0.5492527484893799},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.4492255747318268},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.4361857771873474},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2841566205024719},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2450045645236969},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.21985331177711487},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"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},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/vetecf.2011.6093009","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vetecf.2011.6093009","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE Vehicular Technology Conference (VTC Fall)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.9100000262260437,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W1804110266","https://openalex.org/W2097888543","https://openalex.org/W2099561974","https://openalex.org/W2115541322","https://openalex.org/W2119523314","https://openalex.org/W2133149827","https://openalex.org/W2151953578","https://openalex.org/W2164166019","https://openalex.org/W2545387088","https://openalex.org/W4205293427","https://openalex.org/W6675122539"],"related_works":["https://openalex.org/W3087844490","https://openalex.org/W3090699061","https://openalex.org/W4387546583","https://openalex.org/W2135767944","https://openalex.org/W2051762234","https://openalex.org/W2131408743","https://openalex.org/W2055634632","https://openalex.org/W1981368673","https://openalex.org/W2787827467","https://openalex.org/W2123109261"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3,128],"study":[4],"an":[5,74],"energy":[6],"efficient":[7],"two-way":[8],"amplify-and-forward":[9],"(AF)":[10],"relay":[11,45],"network":[12],"equipped":[13],"with":[14,43],"multiple":[15],"antennas":[16],"at":[17,90],"both":[18,34],"sources":[19],"and":[20,38],"relay.":[21],"To":[22],"minimize":[23],"the":[24,50,53,56,84,87,91,94,101,106,111,115,121,131,136],"transmit":[25,36],"power":[26,95,108],"while":[27,119],"satisfying":[28],"quality":[29],"of":[30,33,52,86,93,110,124,143],"service":[31],"(QoS)":[32],"sources,":[35],"beamformers":[37],"receive":[39],"combiners":[40],"are":[41],"designed":[42],"ZF-based":[44],"processing":[46],"matrix.":[47],"Due":[48],"to":[49,82,114,135],"non-convexity":[51],"optimization":[54,64],"problem,":[55],"original":[57],"problem":[58],"is":[59,79],"decomposed":[60],"into":[61],"two":[62],"simpler":[63],"problems":[65],"which":[66],"can":[67,129],"be":[68],"solved":[69],"through":[70],"iteration":[71],"algorithm.":[72],"As":[73],"alternative,":[75],"eigen-beamforming":[76],"based":[77,117],"technique":[78,118],"also":[80],"provided":[81],"reduce":[83],"complexity":[85],"iterative":[88],"solution":[89,103],"expense":[92],"usage.":[96],"Numerical":[97],"results":[98],"show":[99],"that":[100],"proposed":[102,132],"efficiently":[104],"reduces":[105],"additional":[107],"usage":[109],"system":[112],"compared":[113],"eigenbeamforming":[116],"meeting":[120],"QoS":[122],"constraint":[123],"each":[125],"source.":[126],"Moreover,":[127],"see":[130],"algorithm":[133],"converges":[134],"steady-state":[137],"value":[138],"in":[139],"a":[140],"reasonable":[141],"number":[142],"iterations.":[144]},"counts_by_year":[{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":3},{"year":2013,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}