{"id":"https://openalex.org/W4413754836","doi":"https://doi.org/10.1109/twc.2025.3600645","title":"Integrated Sensing and Communications in Downlink FDD MIMO Without CSI Feedback","display_name":"Integrated Sensing and Communications in Downlink FDD MIMO Without CSI Feedback","publication_year":2025,"publication_date":"2025-08-27","ids":{"openalex":"https://openalex.org/W4413754836","doi":"https://doi.org/10.1109/twc.2025.3600645"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2025.3600645","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2025.3600645","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":null,"display_name":"Namhyun Kim","orcid":null},"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"]},{"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":["KR","US"],"is_corresponding":false,"raw_author_name":"Namhyun Kim","raw_affiliation_strings":["School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ, USA","School of Electrical and Electronic Engineering, Yonsei University, Seoul, South Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ, USA","institution_ids":["https://openalex.org/I55732556"]},{"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/A5079519517","display_name":"Juntaek Han","orcid":"https://orcid.org/0009-0003-5568-5377"},"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":"Juntaek Han","raw_affiliation_strings":["School of Electrical and Electronic Engineering, Yonsei University, Seoul, South Korea"],"raw_orcid":"https://orcid.org/0009-0003-5568-5377","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/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, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea"],"raw_orcid":"https://orcid.org/0000-0002-2619-6078","affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea","institution_ids":["https://openalex.org/I157485424"]}]},{"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":"middle","author":{"id":"https://openalex.org/A5079863632","display_name":"Chan\u2010Byoung Chae","orcid":"https://orcid.org/0000-0001-9561-3341"},"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":"Chan-Byoung Chae","raw_affiliation_strings":["School of Integrated Technology, Yonsei University, Seoul, South Korea"],"raw_orcid":"https://orcid.org/0000-0001-9561-3341","affiliations":[{"raw_affiliation_string":"School of Integrated Technology, Yonsei University, Seoul, South Korea","institution_ids":["https://openalex.org/I193775966"]}]},{"author_position":"last","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"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":2645,"currency":"USD","value_usd":2645},"apc_paid":null,"fwci":1.6765,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.84231839,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":98,"max":99},"biblio":{"volume":"25","issue":null,"first_page":"2984","last_page":"3000"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","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"}},"topics":[{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","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"}},{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9940000176429749,"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":0.9886999726295471,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.7994887828826904},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7615113258361816},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6775577664375305},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.4186723232269287},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.39652517437934875},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3720766305923462},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.3693990707397461},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.15756270289421082},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.15108978748321533}],"concepts":[{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7994887828826904},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7615113258361816},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6775577664375305},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.4186723232269287},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.39652517437934875},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3720766305923462},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3693990707397461},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.15756270289421082},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.15108978748321533}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/twc.2025.3600645","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2025.3600645","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":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":34,"referenced_works":["https://openalex.org/W1972860708","https://openalex.org/W2067342226","https://openalex.org/W2100548565","https://openalex.org/W2108033855","https://openalex.org/W2116141601","https://openalex.org/W2130773372","https://openalex.org/W2139961842","https://openalex.org/W2310675558","https://openalex.org/W2488265751","https://openalex.org/W2561711915","https://openalex.org/W2769776241","https://openalex.org/W2963114949","https://openalex.org/W2963328334","https://openalex.org/W3002828819","https://openalex.org/W3014030863","https://openalex.org/W3038047043","https://openalex.org/W3122709416","https://openalex.org/W3155535021","https://openalex.org/W3157573981","https://openalex.org/W3194819463","https://openalex.org/W3198071899","https://openalex.org/W4205204500","https://openalex.org/W4226403922","https://openalex.org/W4285743499","https://openalex.org/W4320015856","https://openalex.org/W4322706724","https://openalex.org/W4380763437","https://openalex.org/W4387415183","https://openalex.org/W4387448050","https://openalex.org/W4390285520","https://openalex.org/W4391365566","https://openalex.org/W4399449519","https://openalex.org/W4402473628","https://openalex.org/W4406754639"],"related_works":["https://openalex.org/W2548963335","https://openalex.org/W2159941915","https://openalex.org/W1995129237","https://openalex.org/W4388081250","https://openalex.org/W2909457694","https://openalex.org/W1761601995","https://openalex.org/W2904599916","https://openalex.org/W4321608401","https://openalex.org/W4300468626","https://openalex.org/W3193749313"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3,24,81,102],"propose":[4,103],"a":[5,35,104],"precoding":[6,118],"framework":[7],"for":[8,67],"frequency":[9],"division":[10],"duplex":[11],"(FDD)":[12],"integrated":[13],"sensing":[14,36,100],"and":[15,99,120,150],"communication":[16],"(ISAC)":[17],"systems":[18],"with":[19,129],"multiple-input":[20],"multiple-output":[21],"(MIMO).":[22],"Specifically,":[23],"aim":[25],"to":[26,90,132,157],"maximize":[27,133],"ergodic":[28],"sum":[29],"spectral":[30],"efficiency":[31],"(SE)":[32],"while":[33],"satisfying":[34],"beam":[37,145],"pattern":[38,146],"constraint":[39],"defined":[40],"by":[41,94,123],"the":[42,65,72,77,117,125,140,153,158],"mean":[43],"squared":[44],"error":[45,73],"(MSE).":[46],"Our":[47],"method":[48,114],"reconstructs":[49],"downlink":[50],"(DL)":[51],"channel":[52],"state":[53],"information":[54],"(CSI)":[55],"from":[56],"uplink":[57],"(UL)":[58],"training":[59],"signals":[60],"using":[61],"partial":[62],"reciprocity,":[63],"eliminating":[64],"need":[66],"CSI":[68,97],"feedback.":[69],"To":[70],"obtain":[71],"covariance":[74],"matrix":[75],"of":[76],"reconstructed":[78],"DL":[79,96],"CSI,":[80],"devise":[82],"anobserved":[83],"Fisher":[84],"information-based":[85],"estimation":[86],"technique.":[87],"Leveraging":[88],"this,":[89],"mitigate":[91],"interference":[92],"caused":[93],"imperfect":[95],"reconstruction":[98],"operations,":[101],"rate-splitting":[105],"multiple":[106],"access":[107],"(RSMA)":[108],"aided":[109],"precoder":[110],"optimization":[111],"method.":[112],"This":[113],"jointly":[115],"updates":[116],"vector":[119],"Lagrange":[121],"multipliers":[122],"solving":[124],"nonlinear":[126],"eigenvalue":[127],"problem":[128],"eigenvector":[130],"dependency":[131],"SE.":[134],"The":[135],"numerical":[136],"results":[137],"show":[138],"that":[139],"proposed":[141],"design":[142],"achieves":[143],"precise":[144],"control,":[147],"maximizes":[148],"SE,":[149],"significantly":[151],"improves":[152],"sensing-communication":[154],"trade-off":[155],"compared":[156],"state-of-the-art":[159],"methods":[160],"in":[161],"FDD":[162],"ISAC":[163],"scenarios.":[164]},"counts_by_year":[{"year":2026,"cited_by_count":6}],"updated_date":"2026-08-26T07:47:46.906454","created_date":"2025-10-10T00:00:00"}