{"id":"https://openalex.org/W4389319388","doi":"https://doi.org/10.1109/twc.2023.3336177","title":"JrCUP: Joint RIS Calibration and User Positioning for 6G Wireless Systems","display_name":"JrCUP: Joint RIS Calibration and User Positioning for 6G Wireless Systems","publication_year":2023,"publication_date":"2023-12-04","ids":{"openalex":"https://openalex.org/W4389319388","doi":"https://doi.org/10.1109/twc.2023.3336177"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2023.3336177","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2023.3336177","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":true,"oa_status":"green","oa_url":"https://research.chalmers.se/publication/539074/file/539074_Fulltext.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5063198174","display_name":"Pinjun Zheng","orcid":"https://orcid.org/0000-0001-5362-7649"},"institutions":[{"id":"https://openalex.org/I71920554","display_name":"King Abdullah University of Science and Technology","ror":"https://ror.org/01q3tbs38","country_code":"SA","type":"education","lineage":["https://openalex.org/I71920554"]}],"countries":["SA"],"is_corresponding":false,"raw_author_name":"Pinjun Zheng","raw_affiliation_strings":["Division of Computer, Electrical and Mathematical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia"],"raw_orcid":"https://orcid.org/0000-0001-5362-7649","affiliations":[{"raw_affiliation_string":"Division of Computer, Electrical and Mathematical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia","institution_ids":["https://openalex.org/I71920554"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100725055","display_name":"Hui Chen","orcid":"https://orcid.org/0000-0002-9345-9966"},"institutions":[{"id":"https://openalex.org/I66862912","display_name":"Chalmers University of Technology","ror":"https://ror.org/040wg7k59","country_code":"SE","type":"education","lineage":["https://openalex.org/I66862912"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Hui Chen","raw_affiliation_strings":["Chalmers University of Technology, Gothenburg, Sweden","Department of Electrical Engineering, Chalmers University of Technology, Gothenburg, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-9345-9966","affiliations":[{"raw_affiliation_string":"Chalmers University of Technology, Gothenburg, Sweden","institution_ids":["https://openalex.org/I66862912"]},{"raw_affiliation_string":"Department of Electrical Engineering, Chalmers University of Technology, Gothenburg, Sweden","institution_ids":["https://openalex.org/I66862912"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032135059","display_name":"Tarig Ballal","orcid":"https://orcid.org/0000-0003-4160-7514"},"institutions":[{"id":"https://openalex.org/I71920554","display_name":"King Abdullah University of Science and Technology","ror":"https://ror.org/01q3tbs38","country_code":"SA","type":"education","lineage":["https://openalex.org/I71920554"]}],"countries":["SA"],"is_corresponding":false,"raw_author_name":"Tarig Ballal","raw_affiliation_strings":["Division of Computer, Electrical and Mathematical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia"],"raw_orcid":"https://orcid.org/0000-0003-4160-7514","affiliations":[{"raw_affiliation_string":"Division of Computer, Electrical and Mathematical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia","institution_ids":["https://openalex.org/I71920554"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054197935","display_name":"Mikko Valkama","orcid":"https://orcid.org/0000-0003-0361-0800"},"institutions":[{"id":"https://openalex.org/I166825849","display_name":"Tampere University","ror":"https://ror.org/033003e23","country_code":"FI","type":"education","lineage":["https://openalex.org/I166825849"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Mikko Valkama","raw_affiliation_strings":["Department of Electrical Engineering, Tampere University, Tampere, Finland"],"raw_orcid":"https://orcid.org/0000-0003-0361-0800","affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Tampere University, Tampere, Finland","institution_ids":["https://openalex.org/I166825849"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5033860704","display_name":"Henk Wymeersch","orcid":"https://orcid.org/0000-0002-1298-6159"},"institutions":[{"id":"https://openalex.org/I66862912","display_name":"Chalmers University of Technology","ror":"https://ror.org/040wg7k59","country_code":"SE","type":"education","lineage":["https://openalex.org/I66862912"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Henk Wymeersch","raw_affiliation_strings":["Department of Electrical Engineering, Chalmers University of Technology, Gothenburg, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-1298-6159","affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Chalmers University of Technology, Gothenburg, Sweden","institution_ids":["https://openalex.org/I66862912"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5066119580","display_name":"Tareq Y. Al-Naffouri","orcid":"https://orcid.org/0000-0001-6955-4720"},"institutions":[{"id":"https://openalex.org/I71920554","display_name":"King Abdullah University of Science and Technology","ror":"https://ror.org/01q3tbs38","country_code":"SA","type":"education","lineage":["https://openalex.org/I71920554"]}],"countries":["SA"],"is_corresponding":false,"raw_author_name":"Tareq Y. Al-Naffouri","raw_affiliation_strings":["Division of Computer, Electrical and Mathematical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia"],"raw_orcid":"https://orcid.org/0000-0001-6955-4720","affiliations":[{"raw_affiliation_string":"Division of Computer, Electrical and Mathematical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia","institution_ids":["https://openalex.org/I71920554"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.6948,"has_fulltext":false,"cited_by_count":32,"citation_normalized_percentile":{"value":0.91242477,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":99},"biblio":{"volume":"23","issue":"6","first_page":"6683","last_page":"6698"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9994999766349792,"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/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9994999766349792,"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":0.9991999864578247,"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/T10069","display_name":"Antenna Design and Analysis","score":0.9940000176429749,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/computer-science","display_name":"Computer science","score":0.7357085943222046},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6280213594436646},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.5844919085502625},{"id":"https://openalex.org/keywords/tensor","display_name":"Tensor (intrinsic definition)","score":0.5623926520347595},{"id":"https://openalex.org/keywords/calibration","display_name":"Calibration","score":0.547904908657074},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5269808769226074},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.5122848749160767},{"id":"https://openalex.org/keywords/orientation","display_name":"Orientation (vector space)","score":0.4848259687423706},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.4608909487724304},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1795569658279419},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.17027965188026428},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.10131269693374634},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.0853581428527832}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7357085943222046},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6280213594436646},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.5844919085502625},{"id":"https://openalex.org/C155281189","wikidata":"https://www.wikidata.org/wiki/Q3518150","display_name":"Tensor (intrinsic definition)","level":2,"score":0.5623926520347595},{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.547904908657074},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5269808769226074},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.5122848749160767},{"id":"https://openalex.org/C16345878","wikidata":"https://www.wikidata.org/wiki/Q107472979","display_name":"Orientation (vector space)","level":2,"score":0.4848259687423706},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.4608909487724304},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1795569658279419},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.17027965188026428},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.10131269693374634},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0853581428527832},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1109/twc.2023.3336177","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2023.3336177","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"},{"id":"pmh:oai:research.chalmers.se:539074","is_oa":true,"landing_page_url":"https://research.chalmers.se/en/publication/0410b6b7-a2e4-4f63-82c4-c69985b7ff2b","pdf_url":"https://research.chalmers.se/publication/539074/file/539074_Fulltext.pdf","source":{"id":"https://openalex.org/S4306402469","display_name":"Chalmers Research (Chalmers University of Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I66862912","host_organization_name":"Chalmers University of Technology","host_organization_lineage":["https://openalex.org/I66862912"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":null},{"id":"pmh:oai:research.chalmers.se:539026","is_oa":false,"landing_page_url":"https://research.chalmers.se/en/publication/539026","pdf_url":null,"source":{"id":"https://openalex.org/S4306402469","display_name":"Chalmers Research (Chalmers University of Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I66862912","host_organization_name":"Chalmers University of Technology","host_organization_lineage":["https://openalex.org/I66862912"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":null},{"id":"pmh:oai:trepo.tuni.fi:10024/206606","is_oa":false,"landing_page_url":"https://trepo.tuni.fi/handle/10024/206606","pdf_url":null,"source":{"id":"https://openalex.org/S7407055260","display_name":"Trepo - Institutional Repository of Tampere University","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"acceptedVersion"}],"best_oa_location":{"id":"pmh:oai:research.chalmers.se:539074","is_oa":true,"landing_page_url":"https://research.chalmers.se/en/publication/0410b6b7-a2e4-4f63-82c4-c69985b7ff2b","pdf_url":"https://research.chalmers.se/publication/539074/file/539074_Fulltext.pdf","source":{"id":"https://openalex.org/S4306402469","display_name":"Chalmers Research (Chalmers University of Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I66862912","host_organization_name":"Chalmers University of Technology","host_organization_lineage":["https://openalex.org/I66862912"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":null},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1835532524","display_name":null,"funder_award_id":"ORA-CRG2021-4695","funder_id":"https://openalex.org/F4320322320","funder_display_name":"King Abdullah University of Science and Technology"},{"id":"https://openalex.org/G3203237493","display_name":null,"funder_award_id":"6G-ISAC","funder_id":"https://openalex.org/F4320321855","funder_display_name":"Tekes"},{"id":"https://openalex.org/G98633222","display_name":null,"funder_award_id":"101017011","funder_id":"https://openalex.org/F4320332999","funder_display_name":"Horizon 2020 Framework Programme"}],"funders":[{"id":"https://openalex.org/F4320321855","display_name":"Tekes","ror":"https://ror.org/02ag8cq23"},{"id":"https://openalex.org/F4320322320","display_name":"King Abdullah University of Science and Technology","ror":"https://ror.org/01q3tbs38"},{"id":"https://openalex.org/F4320332999","display_name":"Horizon 2020 Framework Programme","ror":"https://ror.org/00k4n6c32"}],"has_content":{"grobid_xml":false,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4389319388.pdf"},"referenced_works_count":64,"referenced_works":["https://openalex.org/W210359992","https://openalex.org/W250076511","https://openalex.org/W2024165284","https://openalex.org/W2110395783","https://openalex.org/W2119412403","https://openalex.org/W2128131274","https://openalex.org/W2129638195","https://openalex.org/W2160664759","https://openalex.org/W2167623372","https://openalex.org/W2469230926","https://openalex.org/W2776656643","https://openalex.org/W2892220663","https://openalex.org/W3010156941","https://openalex.org/W3010805556","https://openalex.org/W3015641590","https://openalex.org/W3035049807","https://openalex.org/W3094125843","https://openalex.org/W3128409631","https://openalex.org/W3131826124","https://openalex.org/W3133999295","https://openalex.org/W3134264804","https://openalex.org/W3137570378","https://openalex.org/W3159402647","https://openalex.org/W3160450049","https://openalex.org/W3167446209","https://openalex.org/W3178014739","https://openalex.org/W3189447947","https://openalex.org/W3194281015","https://openalex.org/W3194854077","https://openalex.org/W3194940985","https://openalex.org/W3200072585","https://openalex.org/W3205217150","https://openalex.org/W3206511420","https://openalex.org/W3212968088","https://openalex.org/W4205995486","https://openalex.org/W4214724065","https://openalex.org/W4226061238","https://openalex.org/W4248288458","https://openalex.org/W4285128867","https://openalex.org/W4285255953","https://openalex.org/W4285280291","https://openalex.org/W4288062625","https://openalex.org/W4288388759","https://openalex.org/W4292970212","https://openalex.org/W4312565786","https://openalex.org/W4313001863","https://openalex.org/W4317418723","https://openalex.org/W4317418814","https://openalex.org/W4319990451","https://openalex.org/W4367663452","https://openalex.org/W4372267582","https://openalex.org/W4372339445","https://openalex.org/W4372347242","https://openalex.org/W4378842078","https://openalex.org/W4378842444","https://openalex.org/W4386025742","https://openalex.org/W4386148294","https://openalex.org/W4386233833","https://openalex.org/W4388118621","https://openalex.org/W4391019688","https://openalex.org/W4391092643","https://openalex.org/W4391953421","https://openalex.org/W6684641359","https://openalex.org/W6804042256"],"related_works":["https://openalex.org/W2062470290","https://openalex.org/W2500106866","https://openalex.org/W2411032004","https://openalex.org/W2952407405","https://openalex.org/W2384373317","https://openalex.org/W2112006108","https://openalex.org/W1973952720","https://openalex.org/W2160365981","https://openalex.org/W2164613681","https://openalex.org/W1471856601"],"abstract_inverted_index":{"Reconfigurable":[0],"intelligent":[1],"surface":[2],"(RIS)-assisted":[3],"localization":[4,15,134,160,187],"has":[5],"attracted":[6],"extensive":[7],"attention":[8],"as":[9,26],"it":[10],"can":[11,156,190],"enable":[12],"and":[13,31,53,111,117,133],"enhance":[14],"services":[16],"in":[17,37,173],"extreme":[18],"scenarios.":[19],"However,":[20],"most":[21],"existing":[22],"works":[23],"treat":[24],"RISs":[25],"anchors":[27],"with":[28,39,58,184],"known":[29],"positions":[30],"orientations,":[32],"which":[33,189],"is":[34,104],"not":[35],"realistic":[36],"applications":[38],"mobile":[40],"or":[41,199],"uncalibrated":[42],"RISs.":[43],"This":[44],"work":[45],"considers":[46],"the":[47,70,97,108,121,130,140,143,153,159,164,168,179],"<italic":[48],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[49],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">joint":[50],"RIS":[51,112,115,155],"calibration":[52],"user":[54,110],"positioning</i>":[55],"(JrCUP)":[56],"problem":[57],"an":[59],"active":[60,154],"RIS.":[61],"We":[62],"propose":[63],"a":[64,78,90,100],"novel":[65],"two-stage":[66],"method":[67],"to":[68,106,138,163],"solve":[69],"considered":[71],"JrCUP":[72,186],"problem.":[73],"The":[74,125],"first":[75],"stage":[76],"comprises":[77],"tensor-estimation":[79],"of":[80,129,142,181],"signal":[81],"parameters":[82,92,132,135],"via":[83],"rotational":[84],"invariance":[85],"techniques":[86],"(tensor-ESPRIT),":[87],"followed":[88],"by":[89,193],"channel":[91,123,131],"refinement":[93],"using":[94],"least-squares.":[95],"In":[96,147],"second":[98],"stage,":[99],"two-dimensional":[101],"search":[102],"algorithm":[103],"proposed":[105,144],"estimate":[107],"three-dimensional":[109],"positions,":[113],"one-dimensional":[114],"orientation,":[116],"clock":[118],"bias":[119],"from":[120],"estimated":[122],"parameters.":[124],"Cram\u00e9r-Rao":[126],"lower":[127],"bounds":[128],"are":[136],"derived":[137],"verify":[139],"effectiveness":[141],"tensor-ESPRIT-based":[145],"algorithms.":[146],"addition,":[148],"simulation":[149],"results":[150],"reveal":[151],"that":[152],"significantly":[157],"improve":[158],"performance":[161],"compared":[162],"passive":[165],"case":[166],"under":[167],"same":[169],"system":[170],"power":[171],"supply":[172],"practical":[174],"regions.":[175],"Moreover,":[176],"we":[177],"observe":[178],"presence":[180],"blind":[182],"areas":[183],"limited":[185],"performance,":[188],"be":[191],"mitigated":[192],"either":[194],"leveraging":[195],"more":[196],"prior":[197],"information":[198],"deploying":[200],"extra":[201],"base":[202],"stations.":[203]},"counts_by_year":[{"year":2026,"cited_by_count":4},{"year":2025,"cited_by_count":13},{"year":2024,"cited_by_count":12},{"year":2023,"cited_by_count":3}],"updated_date":"2026-07-15T18:14:33.161393","created_date":"2025-10-10T00:00:00"}