{"id":"https://openalex.org/W4313126930","doi":"https://doi.org/10.1109/lwc.2022.3223623","title":"Activity Detection in Distributed Massive MIMO With Pilot-Hopping and Activity Correlation","display_name":"Activity Detection in Distributed Massive MIMO With Pilot-Hopping and Activity Correlation","publication_year":2022,"publication_date":"2022-11-21","ids":{"openalex":"https://openalex.org/W4313126930","doi":"https://doi.org/10.1109/lwc.2022.3223623"},"language":"en","primary_location":{"id":"doi:10.1109/lwc.2022.3223623","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2022.3223623","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"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 Wireless Communications Letters","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/A5048150241","display_name":"Ema Becirovic","orcid":"https://orcid.org/0000-0002-6841-3405"},"institutions":[{"id":"https://openalex.org/I102134673","display_name":"Link\u00f6ping University","ror":"https://ror.org/05ynxx418","country_code":"SE","type":"education","lineage":["https://openalex.org/I102134673"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Ema Becirovic","raw_affiliation_strings":["Department of Electrical Engineering (ISY), Linköping University, Linköping, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-6841-3405","affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering (ISY), Linköping University, Linköping, Sweden","institution_ids":["https://openalex.org/I102134673"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062293532","display_name":"Emil Bj\u00f6rnson","orcid":"https://orcid.org/0000-0002-5954-434X"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Emil Bjornson","raw_affiliation_strings":["Department of Computer Science, KTH Royal Institute of Technology, Stockholm, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-5954-434X","affiliations":[{"raw_affiliation_string":"Department of Computer Science, KTH Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5043552696","display_name":"Erik G. Larsson","orcid":"https://orcid.org/0000-0002-7599-4367"},"institutions":[{"id":"https://openalex.org/I102134673","display_name":"Link\u00f6ping University","ror":"https://ror.org/05ynxx418","country_code":"SE","type":"education","lineage":["https://openalex.org/I102134673"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Erik G. Larsson","raw_affiliation_strings":["Department of Electrical Engineering (ISY), Linköping University, Linköping, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-7599-4367","affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering (ISY), Linköping University, Linköping, Sweden","institution_ids":["https://openalex.org/I102134673"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.7951,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.70608079,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":"12","issue":"2","first_page":"272","last_page":"276"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11392","display_name":"Energy Harvesting in Wireless Networks","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"}},"topics":[{"id":"https://openalex.org/T11392","display_name":"Energy Harvesting in Wireless Networks","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/T12879","display_name":"Distributed Sensor Networks and Detection Algorithms","score":0.9990000128746033,"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/T13553","display_name":"Age of Information Optimization","score":0.9962999820709229,"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/correlation","display_name":"Correlation","score":0.674584150314331},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6739465594291687},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6145164370536804},{"id":"https://openalex.org/keywords/energy","display_name":"Energy (signal processing)","score":0.41357266902923584},{"id":"https://openalex.org/keywords/random-access","display_name":"Random access","score":0.4112429618835449},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.3518126308917999},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.34852129220962524},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.31257039308547974},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.1860164999961853},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.15120911598205566}],"concepts":[{"id":"https://openalex.org/C117220453","wikidata":"https://www.wikidata.org/wiki/Q5172842","display_name":"Correlation","level":2,"score":0.674584150314331},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6739465594291687},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6145164370536804},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.41357266902923584},{"id":"https://openalex.org/C101722063","wikidata":"https://www.wikidata.org/wiki/Q218825","display_name":"Random access","level":2,"score":0.4112429618835449},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.3518126308917999},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.34852129220962524},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.31257039308547974},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.1860164999961853},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.15120911598205566},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lwc.2022.3223623","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2022.3223623","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"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 Wireless Communications Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.4300000071525574,"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320320940","display_name":"Stiftelsen f\u00f6r\u00a0Strategisk Forskning","ror":"https://ror.org/044wr7g58"},{"id":"https://openalex.org/F4320322327","display_name":"Knut och Alice Wallenbergs Stiftelse","ror":"https://ror.org/004hzzk67"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":25,"referenced_works":["https://openalex.org/W1518945650","https://openalex.org/W1650958574","https://openalex.org/W1985384533","https://openalex.org/W2038194220","https://openalex.org/W2135161976","https://openalex.org/W2140190241","https://openalex.org/W2370904306","https://openalex.org/W2770606349","https://openalex.org/W2890736047","https://openalex.org/W2938295101","https://openalex.org/W2963265286","https://openalex.org/W2963487846","https://openalex.org/W2963809997","https://openalex.org/W2964133168","https://openalex.org/W2976523269","https://openalex.org/W3080804940","https://openalex.org/W3089248281","https://openalex.org/W3123244206","https://openalex.org/W3154741957","https://openalex.org/W3184901653","https://openalex.org/W3189406816","https://openalex.org/W4200630525","https://openalex.org/W4221148468","https://openalex.org/W4297825594","https://openalex.org/W6696497002"],"related_works":["https://openalex.org/W3133183159","https://openalex.org/W2952222336","https://openalex.org/W4297872561","https://openalex.org/W2116633494","https://openalex.org/W3117544412","https://openalex.org/W2888733329","https://openalex.org/W2740103453","https://openalex.org/W2899709827","https://openalex.org/W3194135015","https://openalex.org/W2999087534"],"abstract_inverted_index":{"Many":[0],"real-world":[1],"scenarios":[2],"for":[3,95],"massive":[4],"machine-type":[5],"communication":[6],"involve":[7],"sensors":[8,21],"monitoring":[9],"a":[10,14],"physical":[11],"phenomenon.":[12],"As":[13],"consequence,":[15],"the":[16,31,49,55,61,78,84],"activity":[17,79],"pattern":[18],"of":[19,33],"these":[20],"will":[22],"be":[23,37],"correlated.":[24],"In":[25],"this":[26],"letter,":[27],"we":[28,67],"study":[29],"how":[30],"correlation":[32,80],"user":[34,97],"activities":[35],"can":[36,68],"exploited":[38],"to":[39,83,92],"improve":[40],"detection":[41,56],"performance":[42,71],"in":[43],"grant-free":[44],"random":[45],"access":[46],"systems":[47],"where":[48],"users":[50],"transmit":[51],"pilot-hopping":[52],"sequences":[53],"and":[54],"is":[57],"performed":[58],"based":[59],"on":[60],"received":[62],"energy.":[63],"We":[64],"show":[65],"that":[66],"expect":[69],"considerable":[70],"gains":[72],"by":[73],"adding":[74],"regularizers,":[75],"which":[76,88],"take":[77],"into":[81],"account,":[82],"non-negative":[85],"least":[86],"squares,":[87],"has":[89],"been":[90],"shown":[91],"work":[93],"well":[94],"independent":[96],"activity.":[98]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":4}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}