{"id":"https://openalex.org/W3162716335","doi":"https://doi.org/10.1109/lwc.2021.3081695","title":"Federated Learning for DL-CSI Prediction in FDD Massive MIMO Systems","display_name":"Federated Learning for DL-CSI Prediction in FDD Massive MIMO Systems","publication_year":2021,"publication_date":"2021-05-19","ids":{"openalex":"https://openalex.org/W3162716335","doi":"https://doi.org/10.1109/lwc.2021.3081695","mag":"3162716335"},"language":"en","primary_location":{"id":"doi:10.1109/lwc.2021.3081695","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2021.3081695","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":"https://hdl.handle.net/20.500.12684/10840","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5062316471","display_name":"Weihao Hou","orcid":"https://orcid.org/0000-0002-9944-6402"},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Weihao Hou","raw_affiliation_strings":["College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China","institution_ids":["https://openalex.org/I41198531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5052697795","display_name":"Jinlong Sun","orcid":"https://orcid.org/0000-0002-3373-2203"},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jinlong Sun","raw_affiliation_strings":["College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China","institution_ids":["https://openalex.org/I41198531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027367677","display_name":"Guan Gui","orcid":"https://orcid.org/0000-0003-3888-2881"},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Guan Gui","raw_affiliation_strings":["College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China","institution_ids":["https://openalex.org/I41198531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016337773","display_name":"Tomoaki Ohtsuki","orcid":"https://orcid.org/0000-0003-3961-1426"},"institutions":[{"id":"https://openalex.org/I203951103","display_name":"Keio University","ror":"https://ror.org/02kn6nx58","country_code":"JP","type":"education","lineage":["https://openalex.org/I203951103"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tomoaki Ohtsuki","raw_affiliation_strings":["Department of Information and Computer Science, Keio University, Yokohama, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Information and Computer Science, Keio University, Yokohama, Japan","institution_ids":["https://openalex.org/I203951103"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063247145","display_name":"Ahmet M. Elbir","orcid":"https://orcid.org/0000-0003-4060-3781"},"institutions":[{"id":"https://openalex.org/I54001450","display_name":"D\u00fczce \u00dcniversitesi","ror":"https://ror.org/04175wc52","country_code":"TR","type":"education","lineage":["https://openalex.org/I54001450"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Ahmet M. Elbir","raw_affiliation_strings":["Department of Electrical and Electronics Engineering, Duzce University, Duzce, Turkey"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronics Engineering, Duzce University, Duzce, Turkey","institution_ids":["https://openalex.org/I54001450"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026448728","display_name":"Haris Gacanin","orcid":"https://orcid.org/0000-0003-3168-8883"},"institutions":[{"id":"https://openalex.org/I887968799","display_name":"RWTH Aachen University","ror":"https://ror.org/04xfq0f34","country_code":"DE","type":"education","lineage":["https://openalex.org/I887968799"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Haris Gacanin","raw_affiliation_strings":["Institute for Communication Technologies and Embedded Systems, RWTH Aachen University, Aachen, Germany"],"affiliations":[{"raw_affiliation_string":"Institute for Communication Technologies and Embedded Systems, RWTH Aachen University, Aachen, Germany","institution_ids":["https://openalex.org/I887968799"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5087599025","display_name":"Hikmet Sari","orcid":"https://orcid.org/0000-0001-8114-6164"},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hikmet Sari","raw_affiliation_strings":["College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China","institution_ids":["https://openalex.org/I41198531"]}]}],"institutions":[],"countries_distinct_count":4,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5062316471"],"corresponding_institution_ids":["https://openalex.org/I41198531"],"apc_list":null,"apc_paid":null,"fwci":1.9051,"has_fulltext":false,"cited_by_count":23,"citation_normalized_percentile":{"value":0.85774299,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":93,"max":99},"biblio":{"volume":"10","issue":"8","first_page":"1810","last_page":"1814"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9995999932289124,"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":0.9995999932289124,"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":0.9979000091552734,"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"}},{"id":"https://openalex.org/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9976999759674072,"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/computer-science","display_name":"Computer science","score":0.8473628759384155},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.7729885578155518},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.7387526035308838},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.7172799706459045},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6542236804962158},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.4882526695728302},{"id":"https://openalex.org/keywords/enhanced-data-rates-for-gsm-evolution","display_name":"Enhanced Data Rates for GSM Evolution","score":0.4774251878261566},{"id":"https://openalex.org/keywords/division","display_name":"Division (mathematics)","score":0.4357329308986664},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.4308476150035858},{"id":"https://openalex.org/keywords/cellular-network","display_name":"Cellular network","score":0.41957688331604004},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.3348228335380554},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3209533095359802},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.29228687286376953},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.174424946308136}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8473628759384155},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7729885578155518},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.7387526035308838},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.7172799706459045},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6542236804962158},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.4882526695728302},{"id":"https://openalex.org/C162307627","wikidata":"https://www.wikidata.org/wiki/Q204833","display_name":"Enhanced Data Rates for GSM Evolution","level":2,"score":0.4774251878261566},{"id":"https://openalex.org/C60798267","wikidata":"https://www.wikidata.org/wiki/Q1226939","display_name":"Division (mathematics)","level":2,"score":0.4357329308986664},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4308476150035858},{"id":"https://openalex.org/C153646914","wikidata":"https://www.wikidata.org/wiki/Q535695","display_name":"Cellular network","level":2,"score":0.41957688331604004},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.3348228335380554},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3209533095359802},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.29228687286376953},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.174424946308136},{"id":"https://openalex.org/C94375191","wikidata":"https://www.wikidata.org/wiki/Q11205","display_name":"Arithmetic","level":1,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/lwc.2021.3081695","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2021.3081695","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:acikerisim.duzce.edu.tr:20.500.12684/10840","is_oa":true,"landing_page_url":"https://hdl.handle.net/20.500.12684/10840","pdf_url":null,"source":{"id":"https://openalex.org/S4377196355","display_name":"DSpace - D\u00fczce (Duzce University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I54001450","host_organization_name":"D\u00fczce \u00dcniversitesi","host_organization_lineage":["https://openalex.org/I54001450"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"article"}],"best_oa_location":{"id":"pmh:oai:acikerisim.duzce.edu.tr:20.500.12684/10840","is_oa":true,"landing_page_url":"https://hdl.handle.net/20.500.12684/10840","pdf_url":null,"source":{"id":"https://openalex.org/S4377196355","display_name":"DSpace - D\u00fczce (Duzce University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I54001450","host_organization_name":"D\u00fczce \u00dcniversitesi","host_organization_lineage":["https://openalex.org/I54001450"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G2783099067","display_name":null,"funder_award_id":"KFKT-2020106","funder_id":"https://openalex.org/F4320335831","funder_display_name":"Key Laboratory of Universal Wireless Communications of Ministry of Education"},{"id":"https://openalex.org/G8731264669","display_name":null,"funder_award_id":"JP19H02142","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"},{"id":"https://openalex.org/G8919277133","display_name":null,"funder_award_id":"61901228","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"},{"id":"https://openalex.org/F4320335831","display_name":"Key Laboratory of Universal Wireless Communications of Ministry of Education","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W2023535408","https://openalex.org/W2072079297","https://openalex.org/W2121315337","https://openalex.org/W2403400427","https://openalex.org/W2541884796","https://openalex.org/W2785853265","https://openalex.org/W2810482148","https://openalex.org/W2960246799","https://openalex.org/W2963145597","https://openalex.org/W2963287650","https://openalex.org/W2963318081","https://openalex.org/W2967981090","https://openalex.org/W2997936696","https://openalex.org/W3007279825","https://openalex.org/W3013594094","https://openalex.org/W3015613093","https://openalex.org/W3080694619","https://openalex.org/W3080880531","https://openalex.org/W3089739838","https://openalex.org/W4318619660","https://openalex.org/W6728757088"],"related_works":["https://openalex.org/W4365807906","https://openalex.org/W2157864637","https://openalex.org/W4223416141","https://openalex.org/W2059045613","https://openalex.org/W2105999282","https://openalex.org/W790449367","https://openalex.org/W1922070205","https://openalex.org/W2136902318","https://openalex.org/W2561058892","https://openalex.org/W4313028534"],"abstract_inverted_index":{"In":[0,67],"frequency-division":[1],"duplexing":[2],"(FDD)":[3],"massive":[4],"multiple-input":[5],"multiple-output":[6],"(MIMO)":[7],"systems,":[8],"deep":[9],"learning":[10,49,74],"for":[11,44,58,78],"predicting":[12],"the":[13,55,82,88,95,99,111,117,122,130,136,145,151,159,163],"downlink":[14],"channel":[15],"state":[16],"information":[17],"(DL-CSI)":[18],"has":[19],"been":[20],"extensively":[21],"studied.":[22],"However,":[23],"in":[24],"some":[25],"small":[26,32],"cellular":[27],"base":[28,90],"stations":[29],"(SBSs),":[30],"a":[31,72,104],"amount":[33],"of":[34,150,158],"training":[35],"data":[36,56],"is":[37,85,154],"insufficient":[38],"to":[39,63,156],"produce":[40],"an":[41],"excellent":[42],"model":[43,84,106,113,119,138],"CSI":[45],"prediction.":[46],"Traditional":[47],"centralized":[48],"(CL)":[50],"based":[51,76],"method":[52],"brings":[53],"all":[54],"together":[57],"training,":[59],"which":[60,109],"can":[61,134],"lead":[62],"overwhelming":[64],"communication":[65],"overheads.":[66],"this":[68],"work,":[69],"we":[70],"introduce":[71],"federated":[73],"(FL)":[75],"framework":[77],"DL-CSI":[79],"prediction,":[80],"where":[81],"global":[83,112,137],"trained":[86],"at":[87],"macro":[89],"station":[91],"(MBS)":[92],"by":[93,115],"collecting":[94],"local":[96,118,123],"models":[97],"from":[98],"edge":[100],"SBSs.":[101],"We":[102],"propose":[103],"novel":[105],"aggregation":[107,132],"algorithm,":[108],"updates":[110],"twice":[114],"considering":[116],"weights":[120],"and":[121,141,162],"gradients,":[124],"respectively.":[125],"Numerical":[126],"simulations":[127],"show":[128],"that":[129,157],"proposed":[131],"algorithm":[133],"make":[135],"converge":[139],"faster":[140],"perform":[142],"better":[143],"than":[144],"compared":[146],"schemes.":[147],"The":[148],"performance":[149],"FL":[152],"architecture":[153],"close":[155],"CL-based":[160],"method,":[161],"transmission":[164],"overheads":[165],"are":[166],"much":[167],"fewer.":[168]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":6},{"year":2023,"cited_by_count":6},{"year":2022,"cited_by_count":5},{"year":2021,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}