{"id":"https://openalex.org/W4389383544","doi":"https://doi.org/10.1109/tvt.2023.3339968","title":"Low-Overhead Channel Estimation for RIS-Aided Multi-Cell Networks in the Presence of Phase Quantization Errors","display_name":"Low-Overhead Channel Estimation for RIS-Aided Multi-Cell Networks in the Presence of Phase Quantization Errors","publication_year":2023,"publication_date":"2023-12-06","ids":{"openalex":"https://openalex.org/W4389383544","doi":"https://doi.org/10.1109/tvt.2023.3339968"},"language":"en","primary_location":{"id":"doi:10.1109/tvt.2023.3339968","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2023.3339968","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"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 Vehicular Technology","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/A5004654557","display_name":"Qingchao Li","orcid":"https://orcid.org/0000-0003-4928-334X"},"institutions":[{"id":"https://openalex.org/I43439940","display_name":"University of Southampton","ror":"https://ror.org/01ryk1543","country_code":"GB","type":"education","lineage":["https://openalex.org/I43439940"]}],"countries":["GB"],"is_corresponding":true,"raw_author_name":"Qingchao Li","raw_affiliation_strings":["School of Electronics and Computer Science, University of Southampton, Southampton, U.K"],"raw_orcid":"https://orcid.org/0000-0003-4928-334X","affiliations":[{"raw_affiliation_string":"School of Electronics and Computer Science, University of Southampton, Southampton, U.K","institution_ids":["https://openalex.org/I43439940"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016934590","display_name":"Mohammed El\u2010Hajjar","orcid":"https://orcid.org/0000-0002-7987-1401"},"institutions":[{"id":"https://openalex.org/I43439940","display_name":"University of Southampton","ror":"https://ror.org/01ryk1543","country_code":"GB","type":"education","lineage":["https://openalex.org/I43439940"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Mohammed El-Hajjar","raw_affiliation_strings":["School of Electronics and Computer Science, University of Southampton, Southampton, U.K"],"raw_orcid":"https://orcid.org/0000-0002-7987-1401","affiliations":[{"raw_affiliation_string":"School of Electronics and Computer Science, University of Southampton, Southampton, U.K","institution_ids":["https://openalex.org/I43439940"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035110792","display_name":"Ibrahim Hemadeh","orcid":"https://orcid.org/0000-0002-1422-0333"},"institutions":[{"id":"https://openalex.org/I4210103321","display_name":"InterDigital (United Kingdom)","ror":"https://ror.org/01d92aq70","country_code":"GB","type":"company","lineage":["https://openalex.org/I4210103321"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Ibrahim Hemadeh","raw_affiliation_strings":["InterDigital, London, U.K","InterDigital, London EC2A 3QR, U.K"],"raw_orcid":"https://orcid.org/0000-0002-1422-0333","affiliations":[{"raw_affiliation_string":"InterDigital, London, U.K","institution_ids":["https://openalex.org/I4210103321"]},{"raw_affiliation_string":"InterDigital, London EC2A 3QR, U.K","institution_ids":["https://openalex.org/I4210103321"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001019738","display_name":"Arman Shojaeifard","orcid":"https://orcid.org/0000-0003-0826-1996"},"institutions":[{"id":"https://openalex.org/I4210103321","display_name":"InterDigital (United Kingdom)","ror":"https://ror.org/01d92aq70","country_code":"GB","type":"company","lineage":["https://openalex.org/I4210103321"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Arman Shojaeifard","raw_affiliation_strings":["InterDigital, London, U.K","InterDigital, London EC2A 3QR, U.K"],"raw_orcid":"https://orcid.org/0000-0003-0826-1996","affiliations":[{"raw_affiliation_string":"InterDigital, London, U.K","institution_ids":["https://openalex.org/I4210103321"]},{"raw_affiliation_string":"InterDigital, London EC2A 3QR, U.K","institution_ids":["https://openalex.org/I4210103321"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5091122305","display_name":"Lajos Hanzo","orcid":"https://orcid.org/0000-0002-2636-5214"},"institutions":[{"id":"https://openalex.org/I43439940","display_name":"University of Southampton","ror":"https://ror.org/01ryk1543","country_code":"GB","type":"education","lineage":["https://openalex.org/I43439940"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Lajos Hanzo","raw_affiliation_strings":["School of Electronics and Computer Science, University of Southampton, Southampton, U.K"],"raw_orcid":"https://orcid.org/0000-0002-2636-5214","affiliations":[{"raw_affiliation_string":"School of Electronics and Computer Science, University of Southampton, Southampton, U.K","institution_ids":["https://openalex.org/I43439940"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5004654557"],"corresponding_institution_ids":["https://openalex.org/I43439940"],"apc_list":null,"apc_paid":null,"fwci":3.1939,"has_fulltext":false,"cited_by_count":25,"citation_normalized_percentile":{"value":0.925332,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":100},"biblio":{"volume":"73","issue":"5","first_page":"6626","last_page":"6641"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9998000264167786,"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":0.9998000264167786,"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/T11192","display_name":"Underwater Vehicles and Communication Systems","score":0.9947999715805054,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9939000010490417,"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/estimator","display_name":"Estimator","score":0.7853024005889893},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.6976610422134399},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6053193211555481},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.5861372351646423},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5767263770103455},{"id":"https://openalex.org/keywords/minimum-mean-square-error","display_name":"Minimum mean square error","score":0.5722050666809082},{"id":"https://openalex.org/keywords/quantization","display_name":"Quantization (signal processing)","score":0.5571625828742981},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.5281139612197876},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.5246624946594238},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.48358839750289917},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.48172882199287415},{"id":"https://openalex.org/keywords/mean-squared-error","display_name":"Mean squared error","score":0.4547003507614136},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.4266052544116974},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.41261059045791626},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.39906904101371765},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.2791682183742523},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.20074579119682312},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.19558972120285034},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.1166238784790039}],"concepts":[{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.7853024005889893},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.6976610422134399},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6053193211555481},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.5861372351646423},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5767263770103455},{"id":"https://openalex.org/C90652560","wikidata":"https://www.wikidata.org/wiki/Q11091747","display_name":"Minimum mean square error","level":3,"score":0.5722050666809082},{"id":"https://openalex.org/C28855332","wikidata":"https://www.wikidata.org/wiki/Q198099","display_name":"Quantization (signal processing)","level":2,"score":0.5571625828742981},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.5281139612197876},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.5246624946594238},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.48358839750289917},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.48172882199287415},{"id":"https://openalex.org/C139945424","wikidata":"https://www.wikidata.org/wiki/Q1940696","display_name":"Mean squared error","level":2,"score":0.4547003507614136},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.4266052544116974},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.41261059045791626},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.39906904101371765},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2791682183742523},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.20074579119682312},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.19558972120285034},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.1166238784790039},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tvt.2023.3339968","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2023.3339968","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"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 Vehicular Technology","raw_type":"journal-article"},{"id":"pmh:oai:eprints.soton.ac.uk:485502","is_oa":false,"landing_page_url":"http://doi.org/10.1109/TVT.2023.3339968>).","pdf_url":null,"source":{"id":"https://openalex.org/S4306401020","display_name":"ePrints Soton (University of Southampton)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I43439940","host_organization_name":"University of Southampton","host_organization_lineage":["https://openalex.org/I43439940"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":null,"raw_type":"PeerReviewed"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G108985073","display_name":null,"funder_award_id":"EP/X04047X/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G1131370387","display_name":"UKRI-India Future Networks Initiative","funder_award_id":"EP/W016605/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G1471839284","display_name":null,"funder_award_id":"EP/W016605/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G2422336959","display_name":null,"funder_award_id":"EP/P003990/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G2490835098","display_name":"Pervasive Wireless Intelligence Beyond the Generations (PerCom)","funder_award_id":"EP/X01228X/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G3964311364","display_name":null,"funder_award_id":"EP/N004558/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G4851813410","display_name":"Pervasive Wireless Intelligence Beyond the Generations","funder_award_id":"EP/Y026721/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G6158505172","display_name":null,"funder_award_id":"EP/D056691/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G8269789390","display_name":null,"funder_award_id":"EP/X01228X/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"}],"funders":[{"id":"https://openalex.org/F4320334627","display_name":"Engineering and Physical Sciences Research Council","ror":"https://ror.org/0439y7842"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":49,"referenced_works":["https://openalex.org/W151604921","https://openalex.org/W570765447","https://openalex.org/W2157962058","https://openalex.org/W2563055839","https://openalex.org/W2770606349","https://openalex.org/W2937693915","https://openalex.org/W2971912794","https://openalex.org/W2981174761","https://openalex.org/W2985466239","https://openalex.org/W3010695123","https://openalex.org/W3011747750","https://openalex.org/W3013719647","https://openalex.org/W3021225717","https://openalex.org/W3021564798","https://openalex.org/W3032095193","https://openalex.org/W3039402952","https://openalex.org/W3043220753","https://openalex.org/W3082909930","https://openalex.org/W3092027179","https://openalex.org/W3095744382","https://openalex.org/W3096023787","https://openalex.org/W3104071687","https://openalex.org/W3107731108","https://openalex.org/W3129486236","https://openalex.org/W3132180877","https://openalex.org/W3134690199","https://openalex.org/W3139899023","https://openalex.org/W3167133444","https://openalex.org/W3190247113","https://openalex.org/W3199166544","https://openalex.org/W3204345069","https://openalex.org/W4210794834","https://openalex.org/W4213157525","https://openalex.org/W4226061238","https://openalex.org/W4226063050","https://openalex.org/W4282980388","https://openalex.org/W4285121037","https://openalex.org/W4285210497","https://openalex.org/W4285237044","https://openalex.org/W4312675325","https://openalex.org/W4317892505","https://openalex.org/W4319993370","https://openalex.org/W4323022529","https://openalex.org/W4323644258","https://openalex.org/W4327808052","https://openalex.org/W4375928907","https://openalex.org/W4377079822","https://openalex.org/W4381328873","https://openalex.org/W4384162015"],"related_works":["https://openalex.org/W4220680272","https://openalex.org/W2088352174","https://openalex.org/W3084132786","https://openalex.org/W4327661444","https://openalex.org/W2034991012","https://openalex.org/W2106711889","https://openalex.org/W4226210192","https://openalex.org/W2032430904","https://openalex.org/W2011751543","https://openalex.org/W2114648181"],"abstract_inverted_index":{"Deploying":[0],"reconfigurable":[1],"intelligent":[2],"surfaces":[3],"(RIS)":[4],"is":[5,50,97,193],"promising":[6],"for":[7,52,135],"enhancing":[8],"the":[9,17,22,26,30,34,41,57,65,74,114,128,132,149,159,176,185,198],"transmission":[10],"reliability":[11],"of":[12,43,59,93,131,151,165,188,197],"wireless":[13,18],"communications":[14],"by":[15,171],"controlling":[16],"environment,":[19],"in":[20,84],"which":[21,82],"active":[23,60],"beamforming":[24,32],"at":[25,33,64],"base":[27],"station":[28],"and":[29,69,139,174],"passive":[31],"RIS":[35,66,94],"are":[36],"jointly":[37],"designed":[38],"based":[39,117],"on":[40,109],"acquisition":[42],"channel":[44,48,78,105,168,201],"state":[45],"information.":[46],"Hence,":[47],"estimation":[49,106],"crucial":[51],"RIS-aided":[53,141],"systems.":[54,142],"Due":[55],"to":[56,67,148,178],"lack":[58],"radio":[61],"frequency":[62],"chains":[63],"process":[68],"transmit":[70],"pilot":[71,87,111],"sequences,":[72],"only":[73],"cascaded":[75],"twin-hop":[76],"transmitter-RISreceiver":[77],"can":[79],"be":[80],"estimated,":[81],"results":[83,177],"extremely":[85],"high":[86],"overhead,":[88,112],"when":[89],"a":[90,100,104],"large":[91],"number":[92],"reflecting":[95],"elements":[96],"used.":[98],"As":[99],"remedy,":[101],"we":[102,144,157],"propose":[103],"method":[107],"relying":[108],"low":[110],"namely":[113],"KarhunenLoeve":[115],"transformation":[116],"linear":[118],"minimal":[119],"mean":[120,161],"square":[121,162],"error":[122,163],"`":[123],"(KL-LMMSE)":[124],"estimator.":[125],"This":[126],"exploits":[127],"spatial":[129],"correlation":[130],"RIS-cascaded":[133],"channels,":[134],"our":[136,146,166,189],"multi-cell":[137],"multiple-input":[138],"multiple-output":[140],"Furthermore,":[143],"extend":[145],"investigations":[147],"effects":[150],"realistic":[152],"phase":[153],"quantization":[154],"errors.":[155],"Additionally,":[156],"derive":[158],"theoretical":[160],"(MSE)":[164],"proposed":[167,190],"estimators":[169],"verified":[170],"numerical":[172],"simulations,":[173],"compare":[175],"various":[179],"benchmark":[180],"schemes.":[181],"We":[182],"show":[183],"that":[184,196],"MSE":[186],"performance":[187],"KL-LMMSE":[191],"estimator":[192],"better":[194],"than":[195],"state-of-the-art":[199],"low-overhead":[200],"estimators.":[202]},"counts_by_year":[{"year":2025,"cited_by_count":18},{"year":2024,"cited_by_count":7}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}