{"id":"https://openalex.org/W3154741957","doi":"https://doi.org/10.1109/twc.2022.3149111","title":"Spatial Correlation Aware Compressed Sensing for User Activity Detection and Channel Estimation in Massive MTC","display_name":"Spatial Correlation Aware Compressed Sensing for User Activity Detection and Channel Estimation in Massive MTC","publication_year":2022,"publication_date":"2022-02-12","ids":{"openalex":"https://openalex.org/W3154741957","doi":"https://doi.org/10.1109/twc.2022.3149111","mag":"3154741957"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2022.3149111","is_oa":true,"landing_page_url":"https://doi.org/10.1109/twc.2022.3149111","pdf_url":"https://ieeexplore.ieee.org/ielx7/7693/9854929/09711935.pdf","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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","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":"hybrid","oa_url":"https://ieeexplore.ieee.org/ielx7/7693/9854929/09711935.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5069609009","display_name":"Hamza Djelouat","orcid":"https://orcid.org/0000-0002-1627-0158"},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Hamza Djelouat","raw_affiliation_strings":["Centre for Wireless Communications--Radio Technologies, University of Oulu, Oulu, Finland"],"raw_orcid":"https://orcid.org/0000-0002-1627-0158","affiliations":[{"raw_affiliation_string":"Centre for Wireless Communications--Radio Technologies, University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056939003","display_name":"Markus Leinonen","orcid":"https://orcid.org/0000-0002-5639-3144"},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Markus Leinonen","raw_affiliation_strings":["Centre for Wireless Communications--Radio Technologies, University of Oulu, Oulu, Finland"],"raw_orcid":"https://orcid.org/0000-0002-5639-3144","affiliations":[{"raw_affiliation_string":"Centre for Wireless Communications--Radio Technologies, University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5029534229","display_name":"Markku Juntti","orcid":"https://orcid.org/0000-0002-5413-1896"},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Markku Juntti","raw_affiliation_strings":["Centre for Wireless Communications--Radio Technologies, University of Oulu, Oulu, Finland"],"raw_orcid":"https://orcid.org/0000-0002-5413-1896","affiliations":[{"raw_affiliation_string":"Centre for Wireless Communications--Radio Technologies, University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I98381234"],"apc_list":null,"apc_paid":null,"fwci":3.9168,"has_fulltext":true,"cited_by_count":29,"citation_normalized_percentile":{"value":0.95341959,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"21","issue":"8","first_page":"6402","last_page":"6416"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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":0.9995999932289124,"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":0.9993000030517578,"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/compressed-sensing","display_name":"Compressed sensing","score":0.7015066146850586},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6701771020889282},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.6134882569313049},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5861090421676636},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.48778754472732544},{"id":"https://openalex.org/keywords/maximum-a-posteriori-estimation","display_name":"Maximum a posteriori estimation","score":0.4583539068698883},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4454765319824219},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.43519511818885803},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.42751550674438477},{"id":"https://openalex.org/keywords/a-priori-and-a-posteriori","display_name":"A priori and a posteriori","score":0.4146701395511627},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.3533018231391907},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.33836829662323},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.23600119352340698},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.19720596075057983},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.17568263411521912},{"id":"https://openalex.org/keywords/maximum-likelihood","display_name":"Maximum likelihood","score":0.13242697715759277}],"concepts":[{"id":"https://openalex.org/C124851039","wikidata":"https://www.wikidata.org/wiki/Q2665459","display_name":"Compressed sensing","level":2,"score":0.7015066146850586},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6701771020889282},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.6134882569313049},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5861090421676636},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.48778754472732544},{"id":"https://openalex.org/C9810830","wikidata":"https://www.wikidata.org/wiki/Q635384","display_name":"Maximum a posteriori estimation","level":3,"score":0.4583539068698883},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4454765319824219},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.43519511818885803},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.42751550674438477},{"id":"https://openalex.org/C75553542","wikidata":"https://www.wikidata.org/wiki/Q178161","display_name":"A priori and a posteriori","level":2,"score":0.4146701395511627},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.3533018231391907},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.33836829662323},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.23600119352340698},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.19720596075057983},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.17568263411521912},{"id":"https://openalex.org/C49781872","wikidata":"https://www.wikidata.org/wiki/Q1045555","display_name":"Maximum likelihood","level":2,"score":0.13242697715759277},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/twc.2022.3149111","is_oa":true,"landing_page_url":"https://doi.org/10.1109/twc.2022.3149111","pdf_url":"https://ieeexplore.ieee.org/ielx7/7693/9854929/09711935.pdf","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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Wireless Communications","raw_type":"journal-article"},{"id":"pmh:oai:oulu.fi:nbnfi-fe2022041929435","is_oa":true,"landing_page_url":"http://urn.fi/urn:nbn:fi-fe2022041929435","pdf_url":null,"source":{"id":"https://openalex.org/S4306400284","display_name":"University of Oulu Repository (University of Oulu)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I98381234","host_organization_name":"University of Oulu","host_organization_lineage":["https://openalex.org/I98381234"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"doi:10.1109/twc.2022.3149111","is_oa":true,"landing_page_url":"https://doi.org/10.1109/twc.2022.3149111","pdf_url":"https://ieeexplore.ieee.org/ielx7/7693/9854929/09711935.pdf","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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Wireless Communications","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.9100000262260437,"id":"https://metadata.un.org/sdg/7"}],"awards":[{"id":"https://openalex.org/G2182880106","display_name":null,"funder_award_id":"323698","funder_id":"https://openalex.org/F4320336704","funder_display_name":"Infotech Oulu"},{"id":"https://openalex.org/G3450801811","display_name":null,"funder_award_id":"323698","funder_id":"https://openalex.org/F4320321108","funder_display_name":"Academy of Finland"},{"id":"https://openalex.org/G4230935547","display_name":null,"funder_award_id":"318927","funder_id":"https://openalex.org/F4320321108","funder_display_name":"Academy of Finland"},{"id":"https://openalex.org/G4846685480","display_name":null,"funder_award_id":"319485","funder_id":"https://openalex.org/F4320321108","funder_display_name":"Academy of Finland"}],"funders":[{"id":"https://openalex.org/F4320321108","display_name":"Academy of Finland","ror":"https://ror.org/05k73zm37"},{"id":"https://openalex.org/F4320322426","display_name":"Nokia Foundation","ror":"https://ror.org/0401nzk46"},{"id":"https://openalex.org/F4320336704","display_name":"Infotech Oulu","ror":null}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3154741957.pdf","grobid_xml":"https://content.openalex.org/works/W3154741957.grobid-xml"},"referenced_works_count":47,"referenced_works":["https://openalex.org/W1525535255","https://openalex.org/W1871489475","https://openalex.org/W1974774078","https://openalex.org/W1979817396","https://openalex.org/W2020282020","https://openalex.org/W2065513175","https://openalex.org/W2107861471","https://openalex.org/W2141804605","https://openalex.org/W2142015064","https://openalex.org/W2145096794","https://openalex.org/W2146000945","https://openalex.org/W2148154358","https://openalex.org/W2152279006","https://openalex.org/W2154304330","https://openalex.org/W2161765392","https://openalex.org/W2164278908","https://openalex.org/W2178935672","https://openalex.org/W2231461199","https://openalex.org/W2296616510","https://openalex.org/W2422021507","https://openalex.org/W2508393166","https://openalex.org/W2561711915","https://openalex.org/W2605954208","https://openalex.org/W2643502490","https://openalex.org/W2706056020","https://openalex.org/W2756263459","https://openalex.org/W2770606349","https://openalex.org/W2781773153","https://openalex.org/W2784331297","https://openalex.org/W2811365745","https://openalex.org/W2961179947","https://openalex.org/W2963124734","https://openalex.org/W2963673880","https://openalex.org/W2979317621","https://openalex.org/W2994292590","https://openalex.org/W3001370401","https://openalex.org/W3010699032","https://openalex.org/W3027993135","https://openalex.org/W3080292365","https://openalex.org/W3080804940","https://openalex.org/W3098350033","https://openalex.org/W3120440980","https://openalex.org/W3160247632","https://openalex.org/W4206180546","https://openalex.org/W4250955649","https://openalex.org/W6639321117","https://openalex.org/W6689973355"],"related_works":["https://openalex.org/W2327053383","https://openalex.org/W2356834760","https://openalex.org/W1964600846","https://openalex.org/W2127563499","https://openalex.org/W2120897947","https://openalex.org/W2030191005","https://openalex.org/W1865172210","https://openalex.org/W2150865841","https://openalex.org/W2138865713","https://openalex.org/W2169353922"],"abstract_inverted_index":{"Grant-free":[0],"access":[1],"is":[2,36,130],"considered":[3],"as":[4,13,112,149],"a":[5,37,52,75,145,150],"key":[6],"enabler":[7],"for":[8,102],"massive":[9],"machine-type":[10],"communications":[11],"(mMTC)":[12],"it":[14],"promotes":[15],"energy-efficiency":[16],"and":[17,32,51,88,140,191],"small":[18],"signalling":[19],"overhead.":[20],"Due":[21],"to":[22,132,200],"the":[23,43,66,72,90,99,103,110,128,133,137,142,171,183],"sporadic":[24,67],"user":[25,30,68],"activity":[26,192],"in":[27,45,74],"mMTC,":[28],"joint":[29],"identification":[31],"channel":[33,94,188],"estimation":[34,147,158,189],"(JUICE)":[35],"main":[38],"challenge.":[39],"This":[40],"paper":[41],"addresses":[42],"JUICE":[44,73,111,143,162],"single-cell":[46],"mMTC":[47],"with":[48,87,195],"single-antenna":[49],"users":[50],"multi-antenna":[53],"base":[54],"station":[55],"(BS)":[56],"under":[57,83],"spatially":[58],"correlated":[59],"fading":[60],"channels.":[61],"In":[62],"particular,":[63],"by":[64],"leveraging":[65],"activity,":[69],"we":[70,108,135,164],"solve":[71],"multi":[76],"measurement":[77],"vector":[78],"compressed":[79],"sensing":[80],"(CS)":[81],"framework":[82],"two":[84],"different":[85],"cases,":[86],"without":[89,105],"knowledge":[91],"of":[92,175],"prior":[93,106],"distribution":[95],"information":[96,139],"(CDI)":[97],"at":[98],"BS.":[100],"First,":[101],"case":[104],"information,":[107],"formulate":[109,141],"an":[113],"iterative":[114,167],"reweighted":[115],"<inline-formula":[116],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[117,153],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">":[118],"<tex-math":[119],"notation=\"LaTeX\">$\\ell":[120],"_{2,1}$":[121],"</tex-math></inline-formula>":[122],"-norm":[123],"minimization":[124],"problem.":[125,159],"Second,":[126],"when":[127],"CDI":[129],"known":[131],"BS,":[134],"exploit":[136],"available":[138],"from":[144],"Bayesian":[146],"perspective":[148],"maximum":[151],"<italic":[152],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">a":[154],"posteriori</i>":[155],"probability":[156],"(MAP)":[157],"For":[160],"both":[161],"formulations,":[163],"derive":[165],"efficient":[166],"solutions":[168,185],"based":[169],"on":[170],"alternating":[172],"direction":[173],"method":[174],"multipliers":[176],"(ADMM).":[177],"The":[178],"numerical":[179],"experiments":[180],"show":[181],"that":[182],"proposed":[184],"achieve":[186],"higher":[187],"quality":[190],"detection":[193],"accuracy":[194],"shorter":[196],"pilot":[197],"sequences":[198],"compared":[199],"existing":[201],"algorithms.":[202]},"counts_by_year":[{"year":2025,"cited_by_count":11},{"year":2024,"cited_by_count":8},{"year":2023,"cited_by_count":6},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":1}],"updated_date":"2026-07-25T09:21:30.201066","created_date":"2025-10-10T00:00:00"}