{"id":"https://openalex.org/W7083681616","doi":"https://doi.org/10.1109/tmc.2025.3615587","title":"A Novel OTFS-Based Massive Random Access Scheme in Cell-Free Massive MIMO Systems for High-Speed Mobility","display_name":"A Novel OTFS-Based Massive Random Access Scheme in Cell-Free Massive MIMO Systems for High-Speed Mobility","publication_year":2025,"publication_date":"2025-09-29","ids":{"openalex":"https://openalex.org/W7083681616","doi":"https://doi.org/10.1109/tmc.2025.3615587"},"language":"en","primary_location":{"id":"doi:10.1109/tmc.2025.3615587","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tmc.2025.3615587","pdf_url":null,"source":{"id":"https://openalex.org/S69141925","display_name":"IEEE Transactions on Mobile Computing","issn_l":"1536-1233","issn":["1536-1233","1558-0660","2161-9875"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320439","host_organization_name":"IEEE Computer Society","host_organization_lineage":["https://openalex.org/P4310320439","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Computer Society","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 Mobile Computing","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":"Yanfeng Hu","orcid":"https://orcid.org/0000-0003-3986-9734"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Yanfeng Hu","raw_affiliation_strings":["National Mobile Communications Research Lab, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"National Mobile Communications Research Lab, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Dongming Wang","orcid":"https://orcid.org/0000-0003-2762-6567"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Dongming Wang","raw_affiliation_strings":["National Mobile Communications Research Lab, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"National Mobile Communications Research Lab, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Xinjiang Xia","orcid":"https://orcid.org/0000-0003-3326-8022"},"institutions":[{"id":"https://openalex.org/I4210155350","display_name":"Purple Mountain Laboratories","ror":"https://ror.org/04zcbk583","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210155350"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xinjiang Xia","raw_affiliation_strings":["Purple Mountain Laboratories, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Purple Mountain Laboratories, Nanjing, China","institution_ids":["https://openalex.org/I4210155350"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Jiamin Li","orcid":"https://orcid.org/0000-0002-4527-3147"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiamin Li","raw_affiliation_strings":["National Mobile Communications Research Lab, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"National Mobile Communications Research Lab, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Pengcheng Zhu","orcid":"https://orcid.org/0000-0001-9867-7041"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Pengcheng Zhu","raw_affiliation_strings":["National Mobile Communications Research Lab, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"National Mobile Communications Research Lab, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"last","author":{"id":null,"display_name":"Xiaohu You","orcid":"https://orcid.org/0000-0002-0809-8511"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaohu You","raw_affiliation_strings":["National Mobile Communications Research Lab, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"National Mobile Communications Research Lab, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I76569877"],"apc_list":null,"apc_paid":null,"fwci":0.6973,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.78670151,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":96,"max":98},"biblio":{"volume":"25","issue":"3","first_page":"3297","last_page":"3313"},"is_retracted":false,"is_paratext":false,"is_xpac":true,"primary_topic":{"id":"https://openalex.org/T11873","display_name":"PAPR reduction in OFDM","score":0.9666000008583069,"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/T11873","display_name":"PAPR reduction in OFDM","score":0.9666000008583069,"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":0.007000000216066837,"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/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.003100000089034438,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/random-access","display_name":"Random access","score":0.6420999765396118},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.5515000224113464},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.47929999232292175},{"id":"https://openalex.org/keywords/robustness","display_name":"Robustness (evolution)","score":0.47290000319480896},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.44279998540878296},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.4426000118255615},{"id":"https://openalex.org/keywords/preamble","display_name":"Preamble","score":0.44190001487731934},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.41999998688697815},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.4083999991416931}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7813000082969666},{"id":"https://openalex.org/C101722063","wikidata":"https://www.wikidata.org/wiki/Q218825","display_name":"Random access","level":2,"score":0.6420999765396118},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.5515000224113464},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.47929999232292175},{"id":"https://openalex.org/C63479239","wikidata":"https://www.wikidata.org/wiki/Q7353546","display_name":"Robustness (evolution)","level":3,"score":0.47290000319480896},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.44279998540878296},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.4426000118255615},{"id":"https://openalex.org/C2780691134","wikidata":"https://www.wikidata.org/wiki/Q1129448","display_name":"Preamble","level":3,"score":0.44190001487731934},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.42419999837875366},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.41999998688697815},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.4083999991416931},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.39800000190734863},{"id":"https://openalex.org/C7720470","wikidata":"https://www.wikidata.org/wiki/Q954187","display_name":"Transceiver","level":3,"score":0.3952000141143799},{"id":"https://openalex.org/C124851039","wikidata":"https://www.wikidata.org/wiki/Q2665459","display_name":"Compressed sensing","level":2,"score":0.36910000443458557},{"id":"https://openalex.org/C171115542","wikidata":"https://www.wikidata.org/wiki/Q1331892","display_name":"Software-defined radio","level":2,"score":0.35920000076293945},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.35179999470710754},{"id":"https://openalex.org/C123079801","wikidata":"https://www.wikidata.org/wiki/Q750240","display_name":"Modulation (music)","level":2,"score":0.3319999873638153},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3240000009536743},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3224000036716461},{"id":"https://openalex.org/C113775141","wikidata":"https://www.wikidata.org/wiki/Q428691","display_name":"Computer engineering","level":1,"score":0.3125999867916107},{"id":"https://openalex.org/C158379750","wikidata":"https://www.wikidata.org/wiki/Q214111","display_name":"Network packet","level":2,"score":0.3098999857902527},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.30079999566078186},{"id":"https://openalex.org/C2776108382","wikidata":"https://www.wikidata.org/wiki/Q25111451","display_name":"Carrier frequency offset","level":5,"score":0.28529998660087585},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.27709999680519104},{"id":"https://openalex.org/C153646914","wikidata":"https://www.wikidata.org/wiki/Q535695","display_name":"Cellular network","level":2,"score":0.27230000495910645},{"id":"https://openalex.org/C175291020","wikidata":"https://www.wikidata.org/wiki/Q1156822","display_name":"Offset (computer science)","level":2,"score":0.2635999917984009},{"id":"https://openalex.org/C130946814","wikidata":"https://www.wikidata.org/wiki/Q5988271","display_name":"MIMO-OFDM","level":4,"score":0.2574999928474426},{"id":"https://openalex.org/C2781327853","wikidata":"https://www.wikidata.org/wiki/Q3552547","display_name":"User equipment","level":3,"score":0.25679999589920044},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.25619998574256897},{"id":"https://openalex.org/C101765175","wikidata":"https://www.wikidata.org/wiki/Q577764","display_name":"Communications system","level":2,"score":0.25040000677108765}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tmc.2025.3615587","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tmc.2025.3615587","pdf_url":null,"source":{"id":"https://openalex.org/S69141925","display_name":"IEEE Transactions on Mobile Computing","issn_l":"1536-1233","issn":["1536-1233","1558-0660","2161-9875"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320439","host_organization_name":"IEEE Computer Society","host_organization_lineage":["https://openalex.org/P4310320439","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Computer Society","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 Mobile Computing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.5140683054924011,"id":"https://metadata.un.org/sdg/9","display_name":"Industry, innovation and infrastructure"}],"awards":[{"id":"https://openalex.org/G5965185695","display_name":null,"funder_award_id":"62371346","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":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":40,"referenced_works":["https://openalex.org/W1987371344","https://openalex.org/W2065513175","https://openalex.org/W2071282831","https://openalex.org/W2127271355","https://openalex.org/W2145096794","https://openalex.org/W2166670884","https://openalex.org/W2286275639","https://openalex.org/W2612254130","https://openalex.org/W2888002205","https://openalex.org/W2910778537","https://openalex.org/W2963494103","https://openalex.org/W2963961909","https://openalex.org/W2965123227","https://openalex.org/W2985994751","https://openalex.org/W3001370401","https://openalex.org/W3014359050","https://openalex.org/W3015801342","https://openalex.org/W3027993135","https://openalex.org/W3029554135","https://openalex.org/W3034448035","https://openalex.org/W3081279169","https://openalex.org/W3089706104","https://openalex.org/W3091365446","https://openalex.org/W3093702528","https://openalex.org/W3100420365","https://openalex.org/W3106287211","https://openalex.org/W3185249347","https://openalex.org/W3189209457","https://openalex.org/W3200021459","https://openalex.org/W4210439023","https://openalex.org/W4212888567","https://openalex.org/W4226242403","https://openalex.org/W4280494080","https://openalex.org/W4309759303","https://openalex.org/W4312329788","https://openalex.org/W4312629554","https://openalex.org/W4321498527","https://openalex.org/W4367280283","https://openalex.org/W4378697461","https://openalex.org/W4400314716"],"related_works":[],"abstract_inverted_index":{"In":[0],"the":[1,35,40,203],"research":[2],"of":[3],"next-generation":[4],"wireless":[5],"communication":[6,68],"technologies,":[7],"orthogonal":[8],"time":[9],"frequency":[10],"space":[11],"(OTFS)":[12],"modulation":[13,58,81],"is":[14,98,107,134,206],"emerging":[15],"as":[16,109,155,157],"a":[17,73,83,110,125,165],"promising":[18],"technique":[19],"for":[20,49,61,89,130],"highspeed":[21],"mobile":[22],"environments":[23],"due":[24],"to":[25,143,213],"its":[26],"superior":[27,210],"efficiency":[28],"and":[29,121,140,147,170,208],"robustness":[30],"in":[31,65],"doubly-selective":[32],"channels.":[33],"Additionally,":[34],"cellfree":[36,84],"architecture,":[37],"which":[38,180],"eliminates":[39],"issues":[41],"associated":[42],"with":[43,56,103,175,195],"cell":[44],"boundaries,":[45],"offers":[46],"broader":[47],"coverage":[48],"radio":[50],"access":[51,64,76,95,133],"networks.":[52],"Integrating":[53],"cell-free":[54],"architecture":[55],"OTFS":[57,80,91],"enables":[59],"support":[60],"massive":[62,74,131],"random":[63,75,132],"high-mobility":[66],"machinetype":[67],"scenarios.":[69],"This":[70,136],"paper":[71],"explores":[72],"scheme":[77,137,205],"based":[78],"on":[79,118],"within":[82],"architecture.":[85],"A":[86],"transceiver":[87],"model":[88],"uplink":[90],"signals":[92],"involving":[93],"multiple":[94],"points":[96],"(APs)":[97],"developed,":[99],"where":[100],"channel":[101,105,159],"estimation":[102,193],"fractional":[104],"parameters":[106],"approximated":[108],"two-dimensional":[111],"block":[112,183],"sparse":[113,172,184],"matrix":[114],"recovery":[115],"problem.":[116],"Building":[117],"existing":[119,215],"superimposed":[120,139],"embedded":[122,141],"preamble":[123,127],"schemes,":[124],"hybrid":[126],"strategy":[128],"intended":[129],"proposed.":[135],"leverages":[138],"preambles":[142],"respectively":[144],"achieve":[145],"rough":[146],"accurate":[148],"active":[149],"user":[150],"equipment":[151],"(UE)":[152],"detection":[153],"(AUD),":[154],"well":[156],"precise":[158,192],"estimation.":[160],"Moreover,":[161],"this":[162],"study":[163],"introduces":[164],"generalized":[166],"approximate":[167],"message":[168],"passing":[169],"pattern-coupled":[171],"Bayesian":[173],"learning":[174],"Laplacian":[176],"prior":[177],"(GAMP-PCSBL-La)":[178],"algorithm,":[179],"effectively":[181],"captures":[182],"features":[185],"after":[186],"discrete":[187],"cosine":[188],"transform":[189],"(DCT),":[190],"delivering":[191],"results":[194,200],"reduced":[196],"computational":[197],"complexity.":[198],"Simulation":[199],"demonstrate":[201],"that":[202],"proposed":[204],"effective":[207],"provides":[209],"performance":[211],"compared":[212],"other":[214],"schemes.":[216]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-10-10T00:00:00"}
