{"id":"https://openalex.org/W4403390220","doi":"https://doi.org/10.1109/tsp.2024.3479319","title":"Joint Visibility Region Detection and Channel Estimation for XL-MIMO Systems via Alternating MAP","display_name":"Joint Visibility Region Detection and Channel Estimation for XL-MIMO Systems via Alternating MAP","publication_year":2024,"publication_date":"2024-01-01","ids":{"openalex":"https://openalex.org/W4403390220","doi":"https://doi.org/10.1109/tsp.2024.3479319"},"language":"en","primary_location":{"id":"doi:10.1109/tsp.2024.3479319","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tsp.2024.3479319","pdf_url":null,"source":{"id":"https://openalex.org/S168680287","display_name":"IEEE Transactions on Signal Processing","issn_l":"1053-587X","issn":["1053-587X","1941-0476"],"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 Signal Processing","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/A5100407922","display_name":"Wenkang Xu","orcid":"https://orcid.org/0000-0003-0097-5062"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wenkang Xu","raw_affiliation_strings":["College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China"],"raw_orcid":"https://orcid.org/0000-0003-0097-5062","affiliations":[{"raw_affiliation_string":"College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China","institution_ids":["https://openalex.org/I76130692"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100340369","display_name":"An Liu","orcid":"https://orcid.org/0000-0002-3943-5234"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"An Liu","raw_affiliation_strings":["College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China"],"raw_orcid":"https://orcid.org/0000-0002-3943-5234","affiliations":[{"raw_affiliation_string":"College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China","institution_ids":["https://openalex.org/I76130692"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5071265062","display_name":"Minjian Zhao","orcid":"https://orcid.org/0000-0002-3020-2434"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Min-jian Zhao","raw_affiliation_strings":["College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China"],"raw_orcid":"https://orcid.org/0000-0002-3020-2434","affiliations":[{"raw_affiliation_string":"College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China","institution_ids":["https://openalex.org/I76130692"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5058252389","display_name":"Giuseppe Caire","orcid":"https://orcid.org/0000-0002-7749-1333"},"institutions":[{"id":"https://openalex.org/I4577782","display_name":"Technische Universit\u00e4t Berlin","ror":"https://ror.org/03v4gjf40","country_code":"DE","type":"education","lineage":["https://openalex.org/I4577782"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Giuseppe Caire","raw_affiliation_strings":["Department of Telecommunication Systems, Technical University of Berlin, Berlin, Germany"],"raw_orcid":"https://orcid.org/0000-0002-7749-1333","affiliations":[{"raw_affiliation_string":"Department of Telecommunication Systems, Technical University of Berlin, Berlin, Germany","institution_ids":["https://openalex.org/I4577782"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":4.455,"has_fulltext":false,"cited_by_count":24,"citation_normalized_percentile":{"value":0.95188001,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":100},"biblio":{"volume":"72","issue":null,"first_page":"4827","last_page":"4842"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9976000189781189,"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":0.9976000189781189,"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/T10575","display_name":"Wireless Communication Networks Research","score":0.996999979019165,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9927999973297119,"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/joint","display_name":"Joint (building)","score":0.7244573831558228},{"id":"https://openalex.org/keywords/visibility","display_name":"Visibility","score":0.6508409976959229},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6063275337219238},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5455363392829895},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.5252789258956909},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.46657025814056396},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.4134265184402466},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3961959481239319},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3363278806209564},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.18726497888565063},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.1449926793575287}],"concepts":[{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.7244573831558228},{"id":"https://openalex.org/C123403432","wikidata":"https://www.wikidata.org/wiki/Q654068","display_name":"Visibility","level":2,"score":0.6508409976959229},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6063275337219238},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5455363392829895},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.5252789258956909},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.46657025814056396},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.4134265184402466},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3961959481239319},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3363278806209564},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.18726497888565063},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.1449926793575287},{"id":"https://openalex.org/C170154142","wikidata":"https://www.wikidata.org/wiki/Q150737","display_name":"Architectural engineering","level":1,"score":0.0},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.0},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tsp.2024.3479319","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tsp.2024.3479319","pdf_url":null,"source":{"id":"https://openalex.org/S168680287","display_name":"IEEE Transactions on Signal Processing","issn_l":"1053-587X","issn":["1053-587X","1941-0476"],"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 Signal Processing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":46,"referenced_works":["https://openalex.org/W1985762288","https://openalex.org/W1992036418","https://openalex.org/W2000721204","https://openalex.org/W2071284784","https://openalex.org/W2097981690","https://openalex.org/W2137813581","https://openalex.org/W2339667469","https://openalex.org/W2508393166","https://openalex.org/W2520000847","https://openalex.org/W2539009049","https://openalex.org/W2605368703","https://openalex.org/W2610971674","https://openalex.org/W2622044750","https://openalex.org/W2735938380","https://openalex.org/W2777046509","https://openalex.org/W2955897898","https://openalex.org/W2963326336","https://openalex.org/W2963482940","https://openalex.org/W2970406288","https://openalex.org/W2997786076","https://openalex.org/W2998872355","https://openalex.org/W2999416770","https://openalex.org/W3003262276","https://openalex.org/W3006668132","https://openalex.org/W3039124110","https://openalex.org/W3042527581","https://openalex.org/W3072069827","https://openalex.org/W3098848552","https://openalex.org/W3203882385","https://openalex.org/W4226168441","https://openalex.org/W4226370247","https://openalex.org/W4285123404","https://openalex.org/W4312549913","https://openalex.org/W4380520376","https://openalex.org/W4380839009","https://openalex.org/W4384808202","https://openalex.org/W4385885073","https://openalex.org/W4386634572","https://openalex.org/W4387414991","https://openalex.org/W4387918056","https://openalex.org/W4389331900","https://openalex.org/W4390204381","https://openalex.org/W4393028639","https://openalex.org/W4394811136","https://openalex.org/W4396534969","https://openalex.org/W6854912335"],"related_works":["https://openalex.org/W2392812199","https://openalex.org/W4200176076","https://openalex.org/W598185802","https://openalex.org/W2355516524","https://openalex.org/W2361471170","https://openalex.org/W2025616642","https://openalex.org/W1954972543","https://openalex.org/W2954738200","https://openalex.org/W4220843223","https://openalex.org/W4226107239"],"abstract_inverted_index":{"We":[0,64],"investigate":[1],"a":[2,34,41,59,66,74,80,84,106,110,115,124,139,148],"joint":[3],"visibility":[4],"region":[5],"(VR)":[6],"detection":[7,93,112,186],"and":[8,21,94,114,187],"channel":[9,95,107,188],"estimation":[10,108],"problem":[11],"in":[12,183],"extremely":[13],"large-scale":[14],"multiple-input-multiple-output":[15],"(XL-MIMO)":[16],"systems,":[17],"where":[18],"near-field":[19],"propagation":[20,151],"spatial":[22,50],"non-stationary":[23],"effects":[24],"exist.":[25],"In":[26],"this":[27],"case,":[28],"each":[29],"scatterer":[30],"can":[31],"only":[32],"see":[33],"subset":[35],"of":[36,48,56,102,179],"antennas,":[37],"i.e.,":[38],"it":[39],"has":[40,155],"certain":[42],"VR":[43,55,92,111,185],"over":[44],"the":[45,49,120,134,156,165,177,180],"antennas.":[46],"Because":[47],"correlation":[51],"among":[52],"adjacent":[53],"sub-arrays,":[54],"scatterers":[57],"exhibits":[58],"two-dimensional":[60],"(2D)":[61],"clustered":[62],"sparsity.":[63,76],"design":[65],"2D":[67],"Markov":[68],"prior":[69,162],"model":[70],"to":[71,158],"capture":[72],"such":[73],"structured":[75,149],"Based":[77],"on":[78],"this,":[79],"novel":[81],"alternating":[82,98],"maximum":[83],"posteriori":[85],"(MAP)":[86],"framework":[87,100],"is":[88,123,147],"developed":[89],"for":[90],"high-accuracy":[91],"estimation.":[96,189],"The":[97,144],"MAP":[99],"consists":[101],"three":[103],"basic":[104],"modules:":[105],"module,":[109,113],"grid":[116,170],"update":[117],"module.":[118],"Specifically,":[119],"first":[121],"module":[122,146,167],"low-complexity":[125],"inverse-free":[126],"variational":[127],"Bayesian":[128],"inference":[129],"(IF-VBI)":[130],"algorithm":[131,153,182],"that":[132],"avoids":[133],"matrix":[135],"inverse":[136],"via":[137,172],"minimizing":[138],"relaxed":[140],"Kullback-Leibler":[141],"(KL)":[142],"divergence.":[143],"second":[145],"expectation":[150],"(EP)":[152],"which":[154],"ability":[157],"deal":[159],"with":[160],"complicated":[161],"information.":[163],"And":[164],"third":[166],"refines":[168],"polar-domain":[169],"parameters":[171],"gradient":[173],"ascent.":[174],"Simulations":[175],"demonstrate":[176],"superiority":[178],"proposed":[181],"both":[184]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":22}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
