{"id":"https://openalex.org/W7092283361","doi":"https://doi.org/10.1109/tvt.2025.3622758","title":"Efficient Design of Multi-Level Cooperative Unsourced Random Access for Centralized Cell-Free Networks","display_name":"Efficient Design of Multi-Level Cooperative Unsourced Random Access for Centralized Cell-Free Networks","publication_year":2025,"publication_date":"2025-10-17","ids":{"openalex":"https://openalex.org/W7092283361","doi":"https://doi.org/10.1109/tvt.2025.3622758"},"language":null,"primary_location":{"id":"doi:10.1109/tvt.2025.3622758","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2025.3622758","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":null,"display_name":"Dexia Jiang","orcid":"https://orcid.org/0000-0001-9606-4137"},"institutions":[{"id":"https://openalex.org/I4800084","display_name":"Southwest Jiaotong University","ror":"https://ror.org/00hn7w693","country_code":"CN","type":"education","lineage":["https://openalex.org/I4800084"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Dexia Jiang","raw_affiliation_strings":["Information Coding and Transmission Key Lab of Sichuan Province, CSNMT International Cooperation Research Centre (MoST), Southwest Jiaotong University, Chengdu, China"],"raw_orcid":"https://orcid.org/0000-0001-9606-4137","affiliations":[{"raw_affiliation_string":"Information Coding and Transmission Key Lab of Sichuan Province, CSNMT International Cooperation Research Centre (MoST), Southwest Jiaotong University, Chengdu, China","institution_ids":["https://openalex.org/I4800084"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Pingzhi Fan","orcid":"https://orcid.org/0000-0002-8281-6251"},"institutions":[{"id":"https://openalex.org/I4800084","display_name":"Southwest Jiaotong University","ror":"https://ror.org/00hn7w693","country_code":"CN","type":"education","lineage":["https://openalex.org/I4800084"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Pingzhi Fan","raw_affiliation_strings":["Information Coding and Transmission Key Lab of Sichuan Province, CSNMT International Cooperation Research Centre (MoST), Southwest Jiaotong University, Chengdu, China"],"raw_orcid":"https://orcid.org/0000-0002-8281-6251","affiliations":[{"raw_affiliation_string":"Information Coding and Transmission Key Lab of Sichuan Province, CSNMT International Cooperation Research Centre (MoST), Southwest Jiaotong University, Chengdu, China","institution_ids":["https://openalex.org/I4800084"]}]},{"author_position":"last","author":{"id":null,"display_name":"Ning Li","orcid":"https://orcid.org/0000-0002-5725-0399"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ning Li","raw_affiliation_strings":["School of Computing and Artificial Intelligence, Fuyao University of Science and Technology, Fuzhou, China"],"raw_orcid":"https://orcid.org/0000-0002-5725-0399","affiliations":[{"raw_affiliation_string":"School of Computing and Artificial Intelligence, Fuyao University of Science and Technology, Fuzhou, China","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I4800084"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.48467892,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"75","issue":"4","first_page":"7019","last_page":"7024"},"is_retracted":false,"is_paratext":false,"is_xpac":true,"primary_topic":{"id":"https://openalex.org/T12079","display_name":"IoT Networks and Protocols","score":0.9359999895095825,"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/T12079","display_name":"IoT Networks and Protocols","score":0.9359999895095825,"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":0.023900000378489494,"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/T11158","display_name":"Wireless Networks and Protocols","score":0.013299999758601189,"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/scheme","display_name":"Scheme (mathematics)","score":0.6552000045776367},{"id":"https://openalex.org/keywords/random-access","display_name":"Random access","score":0.6365000009536743},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5109999775886536},{"id":"https://openalex.org/keywords/reliability","display_name":"Reliability (semiconductor)","score":0.5016999840736389},{"id":"https://openalex.org/keywords/rayleigh-fading","display_name":"Rayleigh fading","score":0.4578000009059906},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.38519999384880066},{"id":"https://openalex.org/keywords/outage-probability","display_name":"Outage probability","score":0.3165000081062317},{"id":"https://openalex.org/keywords/access-method","display_name":"Access method","score":0.2962999939918518}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7457000017166138},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.6552000045776367},{"id":"https://openalex.org/C101722063","wikidata":"https://www.wikidata.org/wiki/Q218825","display_name":"Random access","level":2,"score":0.6365000009536743},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.5777999758720398},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.5144000053405762},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5109999775886536},{"id":"https://openalex.org/C43214815","wikidata":"https://www.wikidata.org/wiki/Q7310987","display_name":"Reliability (semiconductor)","level":3,"score":0.5016999840736389},{"id":"https://openalex.org/C56985126","wikidata":"https://www.wikidata.org/wiki/Q854039","display_name":"Rayleigh fading","level":4,"score":0.4578000009059906},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.38519999384880066},{"id":"https://openalex.org/C2778258436","wikidata":"https://www.wikidata.org/wiki/Q30672262","display_name":"Outage probability","level":4,"score":0.3165000081062317},{"id":"https://openalex.org/C70000936","wikidata":"https://www.wikidata.org/wiki/Q4672467","display_name":"Access method","level":2,"score":0.2962999939918518},{"id":"https://openalex.org/C31243852","wikidata":"https://www.wikidata.org/wiki/Q1666739","display_name":"Stochastic geometry","level":2,"score":0.2928999960422516},{"id":"https://openalex.org/C103278499","wikidata":"https://www.wikidata.org/wiki/Q254465","display_name":"Similarity (geometry)","level":3,"score":0.2750999927520752},{"id":"https://openalex.org/C165696696","wikidata":"https://www.wikidata.org/wiki/Q11287","display_name":"Exploit","level":2,"score":0.26820001006126404},{"id":"https://openalex.org/C199845137","wikidata":"https://www.wikidata.org/wiki/Q145490","display_name":"Network topology","level":2,"score":0.26750001311302185},{"id":"https://openalex.org/C153646914","wikidata":"https://www.wikidata.org/wiki/Q535695","display_name":"Cellular network","level":2,"score":0.2655999958515167},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.26460000872612},{"id":"https://openalex.org/C192126672","wikidata":"https://www.wikidata.org/wiki/Q1068715","display_name":"Telecommunications network","level":2,"score":0.2619999945163727},{"id":"https://openalex.org/C854659","wikidata":"https://www.wikidata.org/wiki/Q1859284","display_name":"Message passing","level":2,"score":0.2614000141620636},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.2551000118255615},{"id":"https://openalex.org/C8272713","wikidata":"https://www.wikidata.org/wiki/Q176737","display_name":"Stochastic process","level":2,"score":0.25380000472068787},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.2524999976158142},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.251800000667572}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tvt.2025.3622758","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2025.3622758","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"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1315233301","display_name":null,"funder_award_id":"U23A20274","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6018493712","display_name":null,"funder_award_id":"62020106001","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"This":[0],"paper":[1],"proposes":[2],"an":[3],"unsourced":[4],"random":[5],"access":[6,34],"scheme":[7,99,103],"designed":[8],"for":[9],"centralized":[10],"cell-free":[11],"networks,":[12],"addressing":[13],"the":[14,47,65,82,97,101],"challenges":[15],"in":[16,104,109],"massive":[17],"machine-type":[18],"communication":[19],"over":[20],"quasi-static":[21],"Rayleigh":[22],"fading":[23],"channels.":[24],"The":[25],"framework":[26],"introduces":[27],"a":[28,112],"multi-level":[29],"cooperative":[30],"architecture":[31],"that":[32,96],"organizes":[33],"points":[35],"into":[36],"virtual":[37],"clusters":[38,55,87],"managed":[39],"by":[40],"spatial":[41],"expansion":[42],"units.":[43],"These":[44],"units":[45],"utilize":[46],"sparsity":[48],"and":[49,61,80,106],"similarity":[50],"of":[51,115],"user":[52],"signals":[53,83],"across":[54],"to":[56,88],"improve":[57],"both":[58],"activity":[59],"detection":[60],"channel":[62],"estimation":[63],"through":[64],"generalized":[66],"multiple":[67,86],"measurement":[68],"vector":[69],"approximate":[70],"message":[71],"passing":[72],"algorithm.":[73],"A":[74],"central":[75],"processing":[76],"unit":[77],"subsequently":[78],"aggregates":[79],"processes":[81],"collected":[84],"from":[85],"achieve":[89],"optimal":[90],"global":[91],"decoding.":[92],"Simulation":[93],"results":[94],"show":[95],"proposed":[98],"outperforms":[100],"distributed":[102],"reliability":[105],"scalability,":[107],"particularly":[108],"scenarios":[110],"with":[111],"large":[113],"number":[114],"active":[116],"users.":[117]},"counts_by_year":[],"updated_date":"2026-04-18T05:59:34.339393","created_date":"2025-10-18T00:00:00"}
