{"id":"https://openalex.org/W4405429206","doi":"https://doi.org/10.1109/twc.2024.3496933","title":"FDD Massive MIMO: How to Optimally Combine UL Pilot and Limited DL CSI Feedback?","display_name":"FDD Massive MIMO: How to Optimally Combine UL Pilot and Limited DL CSI Feedback?","publication_year":2024,"publication_date":"2024-12-16","ids":{"openalex":"https://openalex.org/W4405429206","doi":"https://doi.org/10.1109/twc.2024.3496933"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2024.3496933","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2024.3496933","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"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 Transactions on Wireless Communications","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/A5091128851","display_name":"Jungyeon Kim","orcid":null},"institutions":[{"id":"https://openalex.org/I123900574","display_name":"Pohang University of Science and Technology","ror":"https://ror.org/04xysgw12","country_code":"KR","type":"education","lineage":["https://openalex.org/I123900574"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jungyeon Kim","raw_affiliation_strings":["Department of Electrical Engineering, POSTECH, Pohang, South Korea"],"raw_orcid":"https://orcid.org/0009-0007-4496-0168","affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, POSTECH, Pohang, South Korea","institution_ids":["https://openalex.org/I123900574"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5059421639","display_name":"Jinseok Choi","orcid":"https://orcid.org/0000-0002-2619-6078"},"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":"Jinseok Choi","raw_affiliation_strings":["School of Electrical Engineering, KAIST, Daejeon, South Korea"],"raw_orcid":"https://orcid.org/0000-0002-2619-6078","affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, KAIST, Daejeon, South Korea","institution_ids":["https://openalex.org/I157485424"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080663906","display_name":"Jeonghun Park","orcid":"https://orcid.org/0000-0003-0789-8012"},"institutions":[{"id":"https://openalex.org/I193775966","display_name":"Yonsei University","ror":"https://ror.org/01wjejq96","country_code":"KR","type":"education","lineage":["https://openalex.org/I193775966"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jeonghun Park","raw_affiliation_strings":["School of Electrical and Electronic Engineering, Yonsei University, Seoul, South Korea"],"raw_orcid":"https://orcid.org/0000-0003-0789-8012","affiliations":[{"raw_affiliation_string":"School of Electrical and Electronic Engineering, Yonsei University, Seoul, South Korea","institution_ids":["https://openalex.org/I193775966"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003243464","display_name":"Ahmed Alkhateeb","orcid":"https://orcid.org/0000-0001-5648-1569"},"institutions":[{"id":"https://openalex.org/I55732556","display_name":"Arizona State University","ror":"https://ror.org/03efmqc40","country_code":"US","type":"education","lineage":["https://openalex.org/I55732556"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ahmed Alkhateeb","raw_affiliation_strings":["School of Electrical, Computer, and Energy Engineering, Arizona State University, Tempe, AZ, USA"],"raw_orcid":"https://orcid.org/0000-0001-5648-1569","affiliations":[{"raw_affiliation_string":"School of Electrical, Computer, and Energy Engineering, Arizona State University, Tempe, AZ, USA","institution_ids":["https://openalex.org/I55732556"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5014076559","display_name":"Namyoon Lee","orcid":"https://orcid.org/0000-0003-4321-4108"},"institutions":[{"id":"https://openalex.org/I197347611","display_name":"Korea University","ror":"https://ror.org/047dqcg40","country_code":"KR","type":"education","lineage":["https://openalex.org/I197347611"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Namyoon Lee","raw_affiliation_strings":["School of Electrical Engineering, Korea University, Seoul, South Korea"],"raw_orcid":"https://orcid.org/0000-0003-4321-4108","affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Korea University, Seoul, South Korea","institution_ids":["https://openalex.org/I197347611"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.9281,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.75806966,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":97,"max":98},"biblio":{"volume":"24","issue":"2","first_page":"926","last_page":"939"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9912999868392944,"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":0.9912999868392944,"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":0.944100022315979,"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/T13905","display_name":"Telecommunications and Broadcasting Technologies","score":0.913100004196167,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/mimo","display_name":"MIMO","score":0.7815617322921753},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6669307947158813},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.445367693901062},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.39384758472442627},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.17682895064353943},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.12238699197769165},{"id":"https://openalex.org/keywords/control","display_name":"Control (management)","score":0.10204407572746277}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7815617322921753},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6669307947158813},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.445367693901062},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.39384758472442627},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.17682895064353943},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.12238699197769165},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.10204407572746277}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/twc.2024.3496933","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2024.3496933","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"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 Transactions on Wireless Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G6552509377","display_name":null,"funder_award_id":"RS-2023-00208552","funder_id":"https://openalex.org/F4320335839","funder_display_name":"National Institute of Information and Communications Technology"}],"funders":[{"id":"https://openalex.org/F4320322120","display_name":"National Research Foundation of Korea","ror":"https://ror.org/013aysd81"},{"id":"https://openalex.org/F4320335839","display_name":"National Institute of Information and Communications Technology","ror":"https://ror.org/016bgq349"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":50,"referenced_works":["https://openalex.org/W1952629836","https://openalex.org/W1971443733","https://openalex.org/W1994477821","https://openalex.org/W1997834106","https://openalex.org/W2015301486","https://openalex.org/W2074120933","https://openalex.org/W2093589053","https://openalex.org/W2108525418","https://openalex.org/W2111953900","https://openalex.org/W2113638573","https://openalex.org/W2114058115","https://openalex.org/W2115541322","https://openalex.org/W2120549790","https://openalex.org/W2121051729","https://openalex.org/W2128131274","https://openalex.org/W2144000019","https://openalex.org/W2147601077","https://openalex.org/W2161515500","https://openalex.org/W2163754837","https://openalex.org/W2163762663","https://openalex.org/W2171066806","https://openalex.org/W2171263842","https://openalex.org/W2238937638","https://openalex.org/W2272774410","https://openalex.org/W2322242449","https://openalex.org/W2488265751","https://openalex.org/W2576906596","https://openalex.org/W2605149632","https://openalex.org/W2768388424","https://openalex.org/W2886124254","https://openalex.org/W2963287650","https://openalex.org/W2968019094","https://openalex.org/W2974939732","https://openalex.org/W3002828819","https://openalex.org/W3013594094","https://openalex.org/W3024883403","https://openalex.org/W3036327743","https://openalex.org/W3037818400","https://openalex.org/W3081455451","https://openalex.org/W3089739838","https://openalex.org/W3110664219","https://openalex.org/W3126373016","https://openalex.org/W3194819463","https://openalex.org/W3209231566","https://openalex.org/W4220812476","https://openalex.org/W4221140641","https://openalex.org/W4286579595","https://openalex.org/W4367146743","https://openalex.org/W4387448050","https://openalex.org/W6759127422"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W4391913857","https://openalex.org/W2358668433","https://openalex.org/W4396701345","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W4396696052"],"abstract_inverted_index":{"In":[0,68],"frequency-division":[1],"duplexing":[2],"(FDD)":[3],"multiple-input":[4],"multiple-output":[5],"(MIMO)":[6],"systems,":[7],"obtaining":[8],"accurate":[9],"downlink":[10,36,50,75,90,96,105,121,134,180,188],"channel":[11,60,106,122,173,189],"state":[12],"information":[13,103],"(CSI)":[14],"for":[15,35,154,166,194],"precoding":[16,181],"is":[17,39,82,192],"vastly":[18],"challenging":[19],"due":[20],"to":[21,79,200],"the":[22,27,49,57,128,132,138,143,149,168,171,186],"tremendous":[23],"feedback":[24,92,98,152,162],"overhead":[25],"with":[26,88,137],"growing":[28],"number":[29,58,150],"of":[30,59,104,148,151],"antennas.":[31],"Utilizing":[32,177],"uplink":[33,86,129],"pilots":[34],"CSI":[37,46,51,81,87,91,97,130],"estimation":[38,52],"a":[40,116,146,178,196],"promising":[41],"approach":[42],"that":[43,73,185],"can":[44],"eliminate":[45],"feedback.":[47],"However,":[48],"accuracy":[53],"diminishes":[54],"significantly":[55],"as":[56,145],"paths":[61],"increases,":[62],"resulting":[63],"in":[64,170],"reduced":[65],"spectral":[66,76],"efficiency.":[67],"this":[69],"paper,":[70],"we":[71,141,158,183],"demonstrate":[72],"achieving":[74],"efficiency":[77,198],"comparable":[78,199],"perfect":[80,201],"feasible":[83],"by":[84,125],"combining":[85],"limited":[89,111,133],"information.":[93],"Our":[94],"proposed":[95,187],"strategy":[99],"transmits":[100],"quantized":[101],"phase":[102,155,175],"paths,":[107],"deviating":[108],"from":[109],"conventional":[110],"methods.":[112],"We":[113],"put":[114],"forth":[115],"mean":[117],"square":[118],"error":[119],"(MSE)-optimal":[120],"reconstruction":[123,190],"method":[124,165,191],"jointly":[126],"exploiting":[127],"and":[131],"CSI.":[135,202],"Armed":[136],"MSE-optimal":[139],"estimator,":[140],"derive":[142],"MSE":[144,169],"function":[147],"bits":[153],"quantization.":[156,176],"Subsequently,":[157],"present":[159],"an":[160],"optimal":[161],"bit":[163],"allocation":[164],"minimizing":[167],"reconstructed":[172],"through":[174],"robust":[179],"technique,":[182],"establish":[184],"sufficient":[193],"attaining":[195],"sum-spectral":[197]},"counts_by_year":[{"year":2025,"cited_by_count":5}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}