{"id":"https://openalex.org/W7117145983","doi":"https://doi.org/10.1109/jiot.2025.3647965","title":"Reducing Latency by Eliminating CSIT Feedback: FDD Downlink MIMO Transmission for Internet-of-Things Communications","display_name":"Reducing Latency by Eliminating CSIT Feedback: FDD Downlink MIMO Transmission for Internet-of-Things Communications","publication_year":2025,"publication_date":"2025-12-24","ids":{"openalex":"https://openalex.org/W7117145983","doi":"https://doi.org/10.1109/jiot.2025.3647965"},"language":null,"primary_location":{"id":"doi:10.1109/jiot.2025.3647965","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jiot.2025.3647965","pdf_url":null,"source":{"id":"https://openalex.org/S2480266640","display_name":"IEEE Internet of Things Journal","issn_l":"2327-4662","issn":["2327-4662","2372-2541"],"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 Internet of Things Journal","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/A5110250028","display_name":"J. W. Han","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"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Juntaek Han","raw_affiliation_strings":["School of Electrical and Electronic Engineering, Yonsei University, Seoul, South Korea"],"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/A5121212911","display_name":"Namhyun Kim","orcid":null},"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":"Namhyun Kim","raw_affiliation_strings":["School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, USA"],"affiliations":[{"raw_affiliation_string":"School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, USA","institution_ids":["https://openalex.org/I55732556"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5035530634","display_name":"JeongHun Park","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"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jeonghun Park","raw_affiliation_strings":["School of Electrical and Electronic Engineering, Yonsei University, Seoul, South Korea"],"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":["https://openalex.org/A5110250028"],"corresponding_institution_ids":["https://openalex.org/I193775966"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.60720668,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"13","issue":"6","first_page":"11301","last_page":"11315"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.5856999754905701,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.5856999754905701,"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":0.13760000467300415,"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/T12079","display_name":"IoT Networks and Protocols","score":0.10760000348091125,"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/telecommunications-link","display_name":"Telecommunications link","score":0.9254000186920166},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.6432999968528748},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.628000020980835},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.5091000199317932},{"id":"https://openalex.org/keywords/duplex","display_name":"Duplex (building)","score":0.4602999985218048},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.4580000042915344},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.45489999651908875},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.43619999289512634},{"id":"https://openalex.org/keywords/latency","display_name":"Latency (audio)","score":0.4320000112056732}],"concepts":[{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.9254000186920166},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8205999732017517},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.6432999968528748},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.628000020980835},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.5091000199317932},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.4650000035762787},{"id":"https://openalex.org/C99611785","wikidata":"https://www.wikidata.org/wiki/Q6453233","display_name":"Duplex (building)","level":3,"score":0.4602999985218048},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.4580000042915344},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.45489999651908875},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.43619999289512634},{"id":"https://openalex.org/C82876162","wikidata":"https://www.wikidata.org/wiki/Q17096504","display_name":"Latency (audio)","level":2,"score":0.4320000112056732},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.373199999332428},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.367000013589859},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3375999927520752},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3172999918460846},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.31630000472068787},{"id":"https://openalex.org/C63479239","wikidata":"https://www.wikidata.org/wiki/Q7353546","display_name":"Robustness (evolution)","level":3,"score":0.3034000098705292},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.30059999227523804},{"id":"https://openalex.org/C185142706","wikidata":"https://www.wikidata.org/wiki/Q1134404","display_name":"Covariance matrix","level":2,"score":0.29589998722076416},{"id":"https://openalex.org/C178650346","wikidata":"https://www.wikidata.org/wiki/Q201984","display_name":"Covariance","level":2,"score":0.2851000130176544},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.27639999985694885},{"id":"https://openalex.org/C46637626","wikidata":"https://www.wikidata.org/wiki/Q6693015","display_name":"Low latency (capital markets)","level":2,"score":0.2720000147819519},{"id":"https://openalex.org/C557945733","wikidata":"https://www.wikidata.org/wiki/Q389772","display_name":"Data transmission","level":2,"score":0.2639999985694885},{"id":"https://openalex.org/C89061704","wikidata":"https://www.wikidata.org/wiki/Q5555726","display_name":"Frequency-division multiplexing","level":4,"score":0.2535000145435333},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.25060001015663147}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jiot.2025.3647965","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jiot.2025.3647965","pdf_url":null,"source":{"id":"https://openalex.org/S2480266640","display_name":"IEEE Internet of Things Journal","issn_l":"2327-4662","issn":["2327-4662","2372-2541"],"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 Internet of Things Journal","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":62,"referenced_works":["https://openalex.org/W1939715090","https://openalex.org/W2015301486","https://openalex.org/W2036533317","https://openalex.org/W2052190282","https://openalex.org/W2106864314","https://openalex.org/W2108033855","https://openalex.org/W2120549790","https://openalex.org/W2127271355","https://openalex.org/W2133285942","https://openalex.org/W2139961842","https://openalex.org/W2145013959","https://openalex.org/W2152481521","https://openalex.org/W2262889796","https://openalex.org/W2276996242","https://openalex.org/W2310675558","https://openalex.org/W2488265751","https://openalex.org/W2530093495","https://openalex.org/W2614741889","https://openalex.org/W2796090498","https://openalex.org/W2811347682","https://openalex.org/W2843190809","https://openalex.org/W2892483155","https://openalex.org/W2911927928","https://openalex.org/W2963114949","https://openalex.org/W2963145597","https://openalex.org/W2963532871","https://openalex.org/W2964060933","https://openalex.org/W3002828819","https://openalex.org/W3007280204","https://openalex.org/W3011172489","https://openalex.org/W3013594094","https://openalex.org/W3014030863","https://openalex.org/W3037858978","https://openalex.org/W3054393695","https://openalex.org/W3122709416","https://openalex.org/W3138535611","https://openalex.org/W3153428638","https://openalex.org/W3160365141","https://openalex.org/W3180641418","https://openalex.org/W3190377976","https://openalex.org/W3194819463","https://openalex.org/W4205500067","https://openalex.org/W4206700475","https://openalex.org/W4285506414","https://openalex.org/W4312050602","https://openalex.org/W4312492881","https://openalex.org/W4316661080","https://openalex.org/W4318586124","https://openalex.org/W4367146743","https://openalex.org/W4386590819","https://openalex.org/W4387415183","https://openalex.org/W4387448050","https://openalex.org/W4394897027","https://openalex.org/W4400447481","https://openalex.org/W4400877391","https://openalex.org/W4401326389","https://openalex.org/W4405429206","https://openalex.org/W4406754639","https://openalex.org/W4406857877","https://openalex.org/W4406890378","https://openalex.org/W4408521307","https://openalex.org/W4413925598"],"related_works":[],"abstract_inverted_index":{"This":[0,127],"paper":[1],"presents":[2],"a":[3,85,91,111,141],"novel":[4],"framework":[5,154,178],"for":[6,131,196],"low-latency":[7],"frequency":[8,53,61],"division":[9],"duplex":[10],"(FDD)":[11],"multi-input":[12],"multi-output":[13],"(MIMO)":[14],"transmission":[15],"with":[16,29],"Internet":[17],"of":[18,56,107,134,140,161],"Things":[19],"(IoT)":[20],"communications.":[21,198],"Our":[22],"key":[23],"idea":[24],"is":[25,171],"eliminating":[26],"feedback":[27,170],"associated":[28],"downlink":[30,44,67,74],"channel":[31,57],"state":[32],"information":[33],"at":[34],"the":[35,52,60,64,104,115,123,132,138,162],"transmitter":[36],"(CSIT)":[37],"acquisition.":[38],"Instead,":[39],"we":[40,83,109,174],"propose":[41,90,110],"to":[42,71,101,184],"reconstruct":[43],"CSIT":[45,147],"from":[46],"uplink":[47,65],"reference":[48],"signals":[49],"by":[50],"exploiting":[51],"invariance":[54],"property":[55],"parameters.":[58],"Nonetheless,":[59],"disparity":[62],"between":[63],"and":[66,89,119],"makes":[68],"it":[69,121],"impossible":[70],"get":[72],"perfect":[73],"CSIT,":[75,136],"resulting":[76],"in":[77,159,192],"substantial":[78],"interference.":[79],"To":[80],"address":[81],"this,":[82],"formulate":[84],"max-min":[86],"fairness":[87],"problem":[88],"rate-splitting":[92],"multiple":[93],"access":[94],"(RSMA)-aided":[95],"efficient":[96],"precoding":[97],"method.":[98],"In":[99],"particular,":[100],"fully":[102],"harness":[103],"potential":[105],"benefits":[106],"RSMA,":[108],"method":[112],"that":[113,144,152,176],"approximates":[114],"error":[116],"covariance":[117],"matrix":[118],"incorporates":[120],"into":[122],"precoder":[124,143],"optimization":[125],"process.":[126],"approach":[128],"effectively":[129],"accounts":[130],"impact":[133],"imperfect":[135],"enabling":[137],"design":[139],"robust":[142],"efficiently":[145],"handles":[146],"inaccuracies.":[148],"Simulation":[149],"results":[150],"demonstrate":[151],"our":[153,177],"outperforms":[155],"other":[156],"baseline":[157],"methods":[158],"terms":[160],"minimum":[163],"spectral":[164],"efficiency":[165],"when":[166],"no":[167],"direct":[168],"CSI":[169,186],"used.":[172],"Moreover,":[173],"show":[175],"significantly":[179],"reduces":[180],"communication":[181],"latency":[182,194],"compared":[183],"conventional":[185],"feedback-based":[187],"methods,":[188],"underscoring":[189],"its":[190],"effectiveness":[191],"enhancing":[193],"performance":[195],"IoT":[197]},"counts_by_year":[],"updated_date":"2026-03-09T07:00:12.390032","created_date":"2025-12-24T00:00:00"}