{"id":"https://openalex.org/W4415399089","doi":"https://doi.org/10.1109/tcomm.2025.3624163","title":"Task-Based Quantization for Channel Estimation in RIS Empowered mmWave Systems","display_name":"Task-Based Quantization for Channel Estimation in RIS Empowered mmWave Systems","publication_year":2025,"publication_date":"2025-10-21","ids":{"openalex":"https://openalex.org/W4415399089","doi":"https://doi.org/10.1109/tcomm.2025.3624163"},"language":null,"primary_location":{"id":"doi:10.1109/tcomm.2025.3624163","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2025.3624163","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 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/A5048679227","display_name":"Gyoseung Lee","orcid":"https://orcid.org/0000-0003-2406-2209"},"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":"Gyoseung Lee","raw_affiliation_strings":["School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea"],"raw_orcid":"https://orcid.org/0000-0003-2406-2209","affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea","institution_ids":["https://openalex.org/I157485424"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006744949","display_name":"I.-K. Kim","orcid":null},"institutions":[{"id":"https://openalex.org/I19268510","display_name":"Qualcomm (United Kingdom)","ror":"https://ror.org/04d3djg48","country_code":"GB","type":"company","lineage":["https://openalex.org/I19268510","https://openalex.org/I4210087596"]},{"id":"https://openalex.org/I4210087596","display_name":"Qualcomm (United States)","ror":"https://ror.org/002zrf773","country_code":"US","type":"company","lineage":["https://openalex.org/I4210087596"]}],"countries":["GB","US"],"is_corresponding":false,"raw_author_name":"In-Soo Kim","raw_affiliation_strings":["Wireless Research and Development (WRD), Qualcomm Technologies Inc., San Diego, CA, USA","Wireless Research & Development (WRD), Qualcomm Technologies, Inc, San Diego, CA, USA"],"raw_orcid":"https://orcid.org/0009-0007-7256-3477","affiliations":[{"raw_affiliation_string":"Wireless Research and Development (WRD), Qualcomm Technologies Inc., San Diego, CA, USA","institution_ids":["https://openalex.org/I4210087596","https://openalex.org/I19268510"]},{"raw_affiliation_string":"Wireless Research & Development (WRD), Qualcomm Technologies, Inc, San Diego, CA, USA","institution_ids":["https://openalex.org/I4210087596","https://openalex.org/I19268510"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005913897","display_name":"Yonina C. Eldar","orcid":"https://orcid.org/0000-0003-4358-5304"},"institutions":[{"id":"https://openalex.org/I53964585","display_name":"Weizmann Institute of Science","ror":"https://ror.org/0316ej306","country_code":"IL","type":"education","lineage":["https://openalex.org/I53964585"]}],"countries":["IL"],"is_corresponding":false,"raw_author_name":"Yonina C. Eldar","raw_affiliation_strings":["Faculty of Mathematics and Computer Science, Weizmann Institute of Science, Rehovot, Israel","Faculty of Math and Computer Science, Weizmann Institute of Science, Rehovot, Israel"],"raw_orcid":"https://orcid.org/0000-0003-4358-5304","affiliations":[{"raw_affiliation_string":"Faculty of Mathematics and Computer Science, Weizmann Institute of Science, Rehovot, Israel","institution_ids":["https://openalex.org/I53964585"]},{"raw_affiliation_string":"Faculty of Math and Computer Science, Weizmann Institute of Science, Rehovot, Israel","institution_ids":["https://openalex.org/I53964585"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027055000","display_name":"A. Lee Swindlehurst","orcid":"https://orcid.org/0000-0002-0521-3107"},"institutions":[{"id":"https://openalex.org/I204250578","display_name":"University of California, Irvine","ror":"https://ror.org/04gyf1771","country_code":"US","type":"education","lineage":["https://openalex.org/I204250578"]},{"id":"https://openalex.org/I4210140243","display_name":"Samueli Institute","ror":"https://ror.org/03teef091","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I4210140243"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"A. Lee Swindlehurst","raw_affiliation_strings":["Center for Pervasive Communications and Computing, Henry Samueli School of Engineering, University of California at Irvine, Irvine, CA, USA","Henry Samueli School of Engineering, Center for Pervasive Communications and Computing, University of California, Irvine, CA, USA"],"raw_orcid":"https://orcid.org/0000-0002-0521-3107","affiliations":[{"raw_affiliation_string":"Center for Pervasive Communications and Computing, Henry Samueli School of Engineering, University of California at Irvine, Irvine, CA, USA","institution_ids":[]},{"raw_affiliation_string":"Henry Samueli School of Engineering, Center for Pervasive Communications and Computing, University of California, Irvine, CA, USA","institution_ids":["https://openalex.org/I4210140243","https://openalex.org/I204250578"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5077897109","display_name":"Hyeongtaek Lee","orcid":"https://orcid.org/0000-0002-8611-5196"},"institutions":[{"id":"https://openalex.org/I138925566","display_name":"Ewha Womans University","ror":"https://ror.org/053fp5c05","country_code":"KR","type":"education","lineage":["https://openalex.org/I138925566"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Hyeongtaek Lee","raw_affiliation_strings":["Department of Electronic and Electrical Engineering, Ewha Womans University, Seoul, South Korea"],"raw_orcid":"https://orcid.org/0000-0002-8611-5196","affiliations":[{"raw_affiliation_string":"Department of Electronic and Electrical Engineering, Ewha Womans University, Seoul, South Korea","institution_ids":["https://openalex.org/I138925566"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029180172","display_name":"Minje Kim","orcid":"https://orcid.org/0009-0000-4242-0415"},"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":"Minje Kim","raw_affiliation_strings":["School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea"],"raw_orcid":"https://orcid.org/0009-0000-4242-0415","affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea","institution_ids":["https://openalex.org/I157485424"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5065248740","display_name":"Junil Choi","orcid":"https://orcid.org/0000-0002-9862-9020"},"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":"Junil Choi","raw_affiliation_strings":["School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea"],"raw_orcid":"https://orcid.org/0000-0002-9862-9020","affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea","institution_ids":["https://openalex.org/I157485424"]}]}],"institutions":[],"countries_distinct_count":4,"institutions_distinct_count":7,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.257817,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"74","issue":null,"first_page":"106","last_page":"122"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9843999743461609,"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":0.9843999743461609,"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":0.9803000092506409,"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/T11896","display_name":"Opportunistic and Delay-Tolerant Networks","score":0.9679999947547913,"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/quantization","display_name":"Quantization (signal processing)","score":0.8090999722480774},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.7396000027656555},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6190000176429749},{"id":"https://openalex.org/keywords/communications-system","display_name":"Communications system","score":0.36340001225471497},{"id":"https://openalex.org/keywords/mean-squared-error","display_name":"Mean squared error","score":0.36239999532699585},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.34929999709129333},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.34850001335144043},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.34610000252723694},{"id":"https://openalex.org/keywords/transmitter-power-output","display_name":"Transmitter power output","score":0.3449999988079071}],"concepts":[{"id":"https://openalex.org/C28855332","wikidata":"https://www.wikidata.org/wiki/Q198099","display_name":"Quantization (signal processing)","level":2,"score":0.8090999722480774},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.7396000027656555},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6690999865531921},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6190000176429749},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5910999774932861},{"id":"https://openalex.org/C101765175","wikidata":"https://www.wikidata.org/wiki/Q577764","display_name":"Communications system","level":2,"score":0.36340001225471497},{"id":"https://openalex.org/C139945424","wikidata":"https://www.wikidata.org/wiki/Q1940696","display_name":"Mean squared error","level":2,"score":0.36239999532699585},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.34929999709129333},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.34850001335144043},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.34610000252723694},{"id":"https://openalex.org/C65422117","wikidata":"https://www.wikidata.org/wiki/Q358527","display_name":"Transmitter power output","level":4,"score":0.3449999988079071},{"id":"https://openalex.org/C2778422915","wikidata":"https://www.wikidata.org/wiki/Q10302051","display_name":"Converters","level":3,"score":0.3285999894142151},{"id":"https://openalex.org/C90652560","wikidata":"https://www.wikidata.org/wiki/Q11091747","display_name":"Minimum mean square error","level":3,"score":0.3199000060558319},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3190000057220459},{"id":"https://openalex.org/C65165936","wikidata":"https://www.wikidata.org/wiki/Q575784","display_name":"Baseband","level":3,"score":0.3149999976158142},{"id":"https://openalex.org/C126780896","wikidata":"https://www.wikidata.org/wiki/Q899871","display_name":"Distortion (music)","level":4,"score":0.30820000171661377},{"id":"https://openalex.org/C97744766","wikidata":"https://www.wikidata.org/wiki/Q870845","display_name":"Channel capacity","level":3,"score":0.29190000891685486},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.2896000146865845},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.28870001435279846},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.2849999964237213},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.2784999907016754},{"id":"https://openalex.org/C199833920","wikidata":"https://www.wikidata.org/wiki/Q612536","display_name":"Vector quantization","level":2,"score":0.2676999866962433},{"id":"https://openalex.org/C167928553","wikidata":"https://www.wikidata.org/wiki/Q1376021","display_name":"Estimation theory","level":2,"score":0.25949999690055847},{"id":"https://openalex.org/C173413354","wikidata":"https://www.wikidata.org/wiki/Q7049470","display_name":"Nonlinear distortion","level":4,"score":0.2542000114917755},{"id":"https://openalex.org/C62191587","wikidata":"https://www.wikidata.org/wiki/Q4771249","display_name":"Antenna array","level":3,"score":0.25209999084472656}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcomm.2025.3624163","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2025.3624163","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G3973017287","display_name":null,"funder_award_id":"CCF-2225575","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G8320711427","display_name":null,"funder_award_id":"CNS-2107182","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":51,"referenced_works":["https://openalex.org/W1991056455","https://openalex.org/W2049285480","https://openalex.org/W2062840023","https://openalex.org/W2077733750","https://openalex.org/W2101641981","https://openalex.org/W2109808436","https://openalex.org/W2113158412","https://openalex.org/W2121427778","https://openalex.org/W2293423476","https://openalex.org/W2807133510","https://openalex.org/W2900845709","https://openalex.org/W2946816606","https://openalex.org/W2963121727","https://openalex.org/W2963783167","https://openalex.org/W2968810373","https://openalex.org/W2975749214","https://openalex.org/W2990747873","https://openalex.org/W3005476696","https://openalex.org/W3035386068","https://openalex.org/W3038342299","https://openalex.org/W3091842477","https://openalex.org/W3106866071","https://openalex.org/W3129486236","https://openalex.org/W3133878048","https://openalex.org/W3134059753","https://openalex.org/W3157842774","https://openalex.org/W3158061244","https://openalex.org/W3163252430","https://openalex.org/W3166998838","https://openalex.org/W3180206688","https://openalex.org/W3189090535","https://openalex.org/W3196690531","https://openalex.org/W3202943682","https://openalex.org/W3203904215","https://openalex.org/W4226061238","https://openalex.org/W4229574485","https://openalex.org/W4292970212","https://openalex.org/W4312330321","https://openalex.org/W4318586175","https://openalex.org/W4319068747","https://openalex.org/W4321770460","https://openalex.org/W4367016247","https://openalex.org/W4377079686","https://openalex.org/W4377710206","https://openalex.org/W4386495296","https://openalex.org/W4389888534","https://openalex.org/W4392901972","https://openalex.org/W4393241097","https://openalex.org/W4398151367","https://openalex.org/W4401809209","https://openalex.org/W4410985915"],"related_works":[],"abstract_inverted_index":{"In":[0],"this":[1,54],"paper,":[2],"we":[3,56],"investigate":[4],"channel":[5,59,91,112,116,161,187],"estimation":[6,60,92,162],"for":[7,40,118,128],"reconfigurable":[8],"intelligent":[9],"surface":[10],"(RIS)":[11],"empowered":[12],"millimeter-wave":[13],"(mmWave)":[14],"multi-user":[15],"single-input":[16],"multiple-output":[17],"communication":[18],"systems":[19,46],"using":[20,62],"low-resolution":[21,48],"quantization.":[22],"Due":[23],"to":[24,76,88,191,194],"the":[25,67,78,96,102,129,143,148,159,175,185],"high":[26],"cost":[27],"and":[28,39,71,104,125,171],"power":[29],"consumption":[30],"of":[31,111,146,177],"analog-to-digital":[32],"converters":[33],"(ADCs)":[34],"in":[35,74],"large":[36],"antenna":[37],"arrays":[38],"wide":[41],"signal":[42],"bandwidths,":[43],"designing":[44],"mmWave":[45],"with":[47,121,151,180,196],"ADCs":[49],"is":[50,87],"beneficial.":[51],"To":[52],"tackle":[53],"issue,":[55],"propose":[57],"a":[58,90,114,138,178],"design":[61],"task-based":[63,165],"quantization":[64,166],"that":[65,94,133,158],"considers":[66],"underlying":[68],"hybrid":[69],"analog":[70],"digital":[72,169],"architecture":[73],"order":[75],"improve":[77],"system":[79,179],"performance":[80,176],"under":[81],"finite":[82],"bit-resolution":[83],"constraints.":[84],"Our":[85],"goal":[86],"accomplish":[89],"task":[93],"minimizes":[95],"mean":[97],"squared":[98],"error":[99],"distortion":[100],"between":[101],"true":[103],"estimated":[105],"channel.":[106],"We":[107],"develop":[108],"two":[109],"types":[110],"estimators:":[113],"cascaded":[115],"estimator":[117,127],"an":[119,126],"RIS":[120,144],"purely":[122,168],"passive":[123],"elements,":[124],"separate":[130],"RIS-related":[131],"channels":[132],"leverages":[134],"additional":[135],"information":[136],"from":[137],"few":[139],"semi-passive":[140],"elements":[141],"at":[142],"capable":[145],"processing":[147],"received":[149],"signals":[150],"radio":[152],"frequency":[153],"chains.":[154],"Numerical":[155],"results":[156],"demonstrate":[157],"proposed":[160,186],"designs":[163],"exploiting":[164],"outperform":[167],"methods":[170],"can":[172],"effectively":[173],"approach":[174],"unlimited":[181],"resolution":[182],"ADCs.":[183],"Furthermore,":[184],"estimators":[188],"are":[189],"shown":[190],"be":[192],"superior":[193],"baselines":[195],"small":[197],"training":[198],"overhead.":[199]},"counts_by_year":[],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-22T00:00:00"}