{"id":"https://openalex.org/W2796857136","doi":"https://doi.org/10.1007/s41650-018-0015-4","title":"Energy-Efficient Joint User Association and Power Allocation in Relay-Aided Massive MIMO Systems","display_name":"Energy-Efficient Joint User Association and Power Allocation in Relay-Aided Massive MIMO Systems","publication_year":2018,"publication_date":"2018-04-12","ids":{"openalex":"https://openalex.org/W2796857136","doi":"https://doi.org/10.1007/s41650-018-0015-4","mag":"2796857136"},"language":"en","primary_location":{"id":"doi:10.1007/s41650-018-0015-4","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s41650-018-0015-4","pdf_url":null,"source":{"id":"https://openalex.org/S4210178728","display_name":"Journal of Communications and Information Networks","issn_l":"2096-1081","issn":["2096-1081","2509-3312"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Communications and Information Networks","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/A5100394901","display_name":"Jing Chen","orcid":"https://orcid.org/0000-0002-5300-6524"},"institutions":[{"id":"https://openalex.org/I5343935","display_name":"Guilin University of Electronic Technology","ror":"https://ror.org/05arjae42","country_code":"CN","type":"education","lineage":["https://openalex.org/I5343935"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jing Chen","raw_affiliation_strings":["Key Laboratory of Cognitive Radio and Information Processing, Guilin University of Electronic Technology, Guilin, 541004, China","Key Laboratory of Cognitive Radio and Information Processing, Guilin University of Electronic Technology, Guilin, China"],"affiliations":[{"raw_affiliation_string":"Key Laboratory of Cognitive Radio and Information Processing, Guilin University of Electronic Technology, Guilin, 541004, China","institution_ids":["https://openalex.org/I5343935"]},{"raw_affiliation_string":"Key Laboratory of Cognitive Radio and Information Processing, Guilin University of Electronic Technology, Guilin, China","institution_ids":["https://openalex.org/I5343935"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100647912","display_name":"Hongbin Chen","orcid":"https://orcid.org/0000-0003-4008-3704"},"institutions":[{"id":"https://openalex.org/I5343935","display_name":"Guilin University of Electronic Technology","ror":"https://ror.org/05arjae42","country_code":"CN","type":"education","lineage":["https://openalex.org/I5343935"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Hongbin Chen","raw_affiliation_strings":["Key Laboratory of Cognitive Radio and Information Processing, Guilin University of Electronic Technology, Guilin, 541004, China","Key Laboratory of Cognitive Radio and Information Processing, Guilin University of Electronic Technology, Guilin, China"],"affiliations":[{"raw_affiliation_string":"Key Laboratory of Cognitive Radio and Information Processing, Guilin University of Electronic Technology, Guilin, 541004, China","institution_ids":["https://openalex.org/I5343935"]},{"raw_affiliation_string":"Key Laboratory of Cognitive Radio and Information Processing, Guilin University of Electronic Technology, Guilin, China","institution_ids":["https://openalex.org/I5343935"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102740754","display_name":"Feng Zhao","orcid":"https://orcid.org/0000-0002-5730-2208"},"institutions":[{"id":"https://openalex.org/I5343935","display_name":"Guilin University of Electronic Technology","ror":"https://ror.org/05arjae42","country_code":"CN","type":"education","lineage":["https://openalex.org/I5343935"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Feng Zhao","raw_affiliation_strings":["Key Laboratory of Cognitive Radio and Information Processing, Guilin University of Electronic Technology, Guilin, 541004, China","Key Laboratory of Cognitive Radio and Information Processing, Guilin University of Electronic Technology, Guilin, China"],"affiliations":[{"raw_affiliation_string":"Key Laboratory of Cognitive Radio and Information Processing, Guilin University of Electronic Technology, Guilin, 541004, China","institution_ids":["https://openalex.org/I5343935"]},{"raw_affiliation_string":"Key Laboratory of Cognitive Radio and Information Processing, Guilin University of Electronic Technology, Guilin, China","institution_ids":["https://openalex.org/I5343935"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5100647912"],"corresponding_institution_ids":["https://openalex.org/I5343935"],"apc_list":null,"apc_paid":null,"fwci":0.3863,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.61548517,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":95},"biblio":{"volume":"3","issue":"2","first_page":"67","last_page":"74"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","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"}},"topics":[{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","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/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9994999766349792,"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":0.9932000041007996,"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/transmitter-power-output","display_name":"Transmitter power output","score":0.6852916479110718},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6737289428710938},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.6458989381790161},{"id":"https://openalex.org/keywords/relay","display_name":"Relay","score":0.6317431926727295},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.6090487241744995},{"id":"https://openalex.org/keywords/efficient-energy-use","display_name":"Efficient energy use","score":0.5814673900604248},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.5624081492424011},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.4806291460990906},{"id":"https://openalex.org/keywords/iterative-method","display_name":"Iterative method","score":0.4753004014492035},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.46536684036254883},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.45123276114463806},{"id":"https://openalex.org/keywords/energy","display_name":"Energy (signal processing)","score":0.42761123180389404},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.29221922159194946},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.26595795154571533},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.21156394481658936},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.20624443888664246},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.19941210746765137},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.18343988060951233},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.17509683966636658},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.08963918685913086},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.0889887809753418}],"concepts":[{"id":"https://openalex.org/C65422117","wikidata":"https://www.wikidata.org/wiki/Q358527","display_name":"Transmitter power output","level":4,"score":0.6852916479110718},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6737289428710938},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.6458989381790161},{"id":"https://openalex.org/C2778156585","wikidata":"https://www.wikidata.org/wiki/Q174053","display_name":"Relay","level":3,"score":0.6317431926727295},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.6090487241744995},{"id":"https://openalex.org/C2742236","wikidata":"https://www.wikidata.org/wiki/Q924713","display_name":"Efficient energy use","level":2,"score":0.5814673900604248},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.5624081492424011},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.4806291460990906},{"id":"https://openalex.org/C159694833","wikidata":"https://www.wikidata.org/wiki/Q2321565","display_name":"Iterative method","level":2,"score":0.4753004014492035},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.46536684036254883},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.45123276114463806},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.42761123180389404},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.29221922159194946},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.26595795154571533},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.21156394481658936},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.20624443888664246},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.19941210746765137},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.18343988060951233},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.17509683966636658},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.08963918685913086},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.0889887809753418},{"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/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/s41650-018-0015-4","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s41650-018-0015-4","pdf_url":null,"source":{"id":"https://openalex.org/S4210178728","display_name":"Journal of Communications and Information Networks","issn_l":"2096-1081","issn":["2096-1081","2509-3312"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Communications and Information Networks","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.8700000047683716,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W1635873181","https://openalex.org/W1983841927","https://openalex.org/W2017686275","https://openalex.org/W2023535408","https://openalex.org/W2121085736","https://openalex.org/W2147601077","https://openalex.org/W2159954985","https://openalex.org/W2195014314","https://openalex.org/W2228048552","https://openalex.org/W2296627564","https://openalex.org/W2323192040","https://openalex.org/W2327455150","https://openalex.org/W2465569272","https://openalex.org/W2481565790","https://openalex.org/W2486852881","https://openalex.org/W2602399609","https://openalex.org/W2605344455","https://openalex.org/W2962706271","https://openalex.org/W2963108822","https://openalex.org/W3098476189"],"related_works":["https://openalex.org/W4365807906","https://openalex.org/W2157864637","https://openalex.org/W4223416141","https://openalex.org/W2546639359","https://openalex.org/W2972242150","https://openalex.org/W1922070205","https://openalex.org/W2287071596","https://openalex.org/W2515629000","https://openalex.org/W2103590590","https://openalex.org/W2013230419"],"abstract_inverted_index":{"Energy":[0],"efficiency":[1,56,72,217],"is":[2,47,62,73,98,116,134,173],"an":[3,10],"important":[4],"metric":[5],"for":[6,146],"downlink":[7],"transmission":[8],"in":[9],"amplify-and-forward":[11],"relayaided":[12],"massive":[13],"multiple-input":[14],"multiple-output":[15],"system,":[16],"but":[17],"has":[18],"not":[19],"been":[20],"well":[21],"investigated.":[22],"In":[23],"this":[24,102],"work,":[25],"considering":[26],"the":[27,38,50,58,65,89,113,129,147,153,170,184,195,198,202,214],"characteristics":[28],"of":[29,36,53,69,77,82,88,152,169,197],"such":[30],"a":[31,119,124,138,143,166,176],"system":[32,54,70,215],"and":[33,43,84,93,110,123,155,189,204,212],"quality-of-service":[34],"requirements":[35,81],"users,":[37],"energy-efficient":[39],"joint":[40,186],"user":[41,120,132,187,221],"association":[42,121,133,188],"power":[44,125,190,210],"allocation":[45,126,191],"problem":[46,104,115,141,172],"studied.":[48],"First,":[49],"closed-form":[51],"expression":[52],"energy":[55,71,216],"under":[57,75],"proportional":[59],"fairness":[60],"criterion":[61],"derived.":[63],"Then,":[64],"proportionally":[66],"fair":[67],"utility":[68],"maximized":[74],"constraints":[76],"minimum":[78],"signal-to-noise":[79],"ratio":[80],"users":[83],"maximum":[85],"transmit":[86,150],"powers":[87,151],"base":[90],"station":[91,158],"(BS)":[92],"relay":[94,157,205],"stations.":[95],"As":[96],"it":[97],"difficult":[99],"to":[100,107],"solve":[101],"optimization":[103],"directly":[105],"due":[106],"its":[108],"mixed-integer":[109],"non-convex":[111],"features,":[112],"original":[114,171],"decomposed":[117],"into":[118],"sub-problem":[122],"sub-problem.":[127],"For":[128],"former,":[130],"optimum":[131,149],"determined":[135,160],"by":[136,161,175],"solving":[137],"Lagrangian":[139],"dual":[140],"with":[142,220],"sub-gradient":[144],"algorithm;":[145],"latter,":[148],"BS":[154,199,203],"each":[156],"are":[159],"using":[162],"Newton\u2019s":[163],"method.":[164],"Finally,":[165],"sub-optimal":[167],"solution":[168],"obtained":[174],"low-complexity":[177],"iterative":[178],"algorithm.":[179],"Simulation":[180],"results":[181],"show":[182],"that":[183],"proposed":[185],"algorithm":[192],"can":[193],"offload":[194],"traffic":[196],"effectively,":[200],"keep":[201],"stations":[206],"operate":[207],"at":[208],"low":[209],"levels,":[211],"improve":[213],"significantly,":[218],"compared":[219],"association-only":[222],"schemes.":[223]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
