{"id":"https://openalex.org/W4399849464","doi":"https://doi.org/10.1109/twc.2024.3413980","title":"AFDM-SCMA: A Promising Waveform for Massive Connectivity Over High Mobility Channels","display_name":"AFDM-SCMA: A Promising Waveform for Massive Connectivity Over High Mobility Channels","publication_year":2024,"publication_date":"2024-06-20","ids":{"openalex":"https://openalex.org/W4399849464","doi":"https://doi.org/10.1109/twc.2024.3413980"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2024.3413980","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2024.3413980","pdf_url":null,"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":null,"license_id":null,"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":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5078371026","display_name":"Qu Luo","orcid":"https://orcid.org/0000-0001-6185-8375"},"institutions":[{"id":"https://openalex.org/I28290843","display_name":"University of Surrey","ror":"https://ror.org/00ks66431","country_code":"GB","type":"education","lineage":["https://openalex.org/I28290843"]}],"countries":["GB"],"is_corresponding":true,"raw_author_name":"Qu Luo","raw_affiliation_strings":["5G/6G Innovation Centre, University of Surrey, Guildford, U.K"],"affiliations":[{"raw_affiliation_string":"5G/6G Innovation Centre, University of Surrey, Guildford, U.K","institution_ids":["https://openalex.org/I28290843"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5002566516","display_name":"Pei Xiao","orcid":"https://orcid.org/0000-0002-7886-5878"},"institutions":[{"id":"https://openalex.org/I28290843","display_name":"University of Surrey","ror":"https://ror.org/00ks66431","country_code":"GB","type":"education","lineage":["https://openalex.org/I28290843"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Pei Xiao","raw_affiliation_strings":["5G/6G Innovation Centre, University of Surrey, Guildford, U.K"],"affiliations":[{"raw_affiliation_string":"5G/6G Innovation Centre, University of Surrey, Guildford, U.K","institution_ids":["https://openalex.org/I28290843"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100629531","display_name":"Zilong Liu","orcid":"https://orcid.org/0000-0002-5851-4261"},"institutions":[{"id":"https://openalex.org/I110002522","display_name":"University of Essex","ror":"https://ror.org/02nkf1q06","country_code":"GB","type":"education","lineage":["https://openalex.org/I110002522"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Zilong Liu","raw_affiliation_strings":["School of Computer Science and Electronics Engineering, University of Essex, Colchester, U.K"],"affiliations":[{"raw_affiliation_string":"School of Computer Science and Electronics Engineering, University of Essex, Colchester, U.K","institution_ids":["https://openalex.org/I110002522"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5061432638","display_name":"Ziwei Wan","orcid":"https://orcid.org/0000-0002-9452-6585"},"institutions":[{"id":"https://openalex.org/I28290843","display_name":"University of Surrey","ror":"https://ror.org/00ks66431","country_code":"GB","type":"education","lineage":["https://openalex.org/I28290843"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Ziwei Wan","raw_affiliation_strings":["5G/6G Innovation Centre, University of Surrey, Guildford, U.K"],"affiliations":[{"raw_affiliation_string":"5G/6G Innovation Centre, University of Surrey, Guildford, U.K","institution_ids":["https://openalex.org/I28290843"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5011969400","display_name":"Nikolaos Thomos","orcid":"https://orcid.org/0000-0001-7266-2642"},"institutions":[{"id":"https://openalex.org/I110002522","display_name":"University of Essex","ror":"https://ror.org/02nkf1q06","country_code":"GB","type":"education","lineage":["https://openalex.org/I110002522"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Nikolaos Thomos","raw_affiliation_strings":["School of Computer Science and Electronics Engineering, University of Essex, Colchester, U.K"],"affiliations":[{"raw_affiliation_string":"School of Computer Science and Electronics Engineering, University of Essex, Colchester, U.K","institution_ids":["https://openalex.org/I110002522"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054396881","display_name":"Zhen Gao","orcid":"https://orcid.org/0000-0002-2709-0216"},"institutions":[{"id":"https://openalex.org/I125839683","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74","country_code":"CN","type":"education","lineage":["https://openalex.org/I125839683","https://openalex.org/I890469752"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhen Gao","raw_affiliation_strings":["School of Information and Electronics and the MIIT Key Laboratory of Complex-Field Intelligent Sensing, Beijing Institute of Technology (BIT), Beijing, China"],"affiliations":[{"raw_affiliation_string":"School of Information and Electronics and the MIIT Key Laboratory of Complex-Field Intelligent Sensing, Beijing Institute of Technology (BIT), Beijing, China","institution_ids":["https://openalex.org/I125839683"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5024765287","display_name":"Ziming He","orcid":"https://orcid.org/0000-0002-4822-6274"},"institutions":[{"id":"https://openalex.org/I2250650973","display_name":"Samsung (South Korea)","ror":"https://ror.org/04w3jy968","country_code":"KR","type":"company","lineage":["https://openalex.org/I2250650973"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Ziming He","raw_affiliation_strings":["Samsung Cambridge Solution Centre, System LSI, Samsung Electronics, Cambridge, U.K"],"affiliations":[{"raw_affiliation_string":"Samsung Cambridge Solution Centre, System LSI, Samsung Electronics, Cambridge, U.K","institution_ids":["https://openalex.org/I2250650973"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5078371026"],"corresponding_institution_ids":["https://openalex.org/I28290843"],"apc_list":null,"apc_paid":null,"fwci":8.7049,"has_fulltext":false,"cited_by_count":47,"citation_normalized_percentile":{"value":0.98716921,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":100},"biblio":{"volume":"23","issue":"10","first_page":"14421","last_page":"14436"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13052","display_name":"Molecular Communication and Nanonetworks","score":0.9951000213623047,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T13052","display_name":"Molecular Communication and Nanonetworks","score":0.9951000213623047,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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":0.9944000244140625,"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/T10851","display_name":"Optical Wireless Communication Technologies","score":0.9829000234603882,"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/computer-science","display_name":"Computer science","score":0.7283792495727539},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.5555183291435242},{"id":"https://openalex.org/keywords/waveform","display_name":"Waveform","score":0.4497881531715393},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.37365663051605225}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7283792495727539},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.5555183291435242},{"id":"https://openalex.org/C197424946","wikidata":"https://www.wikidata.org/wiki/Q1165717","display_name":"Waveform","level":3,"score":0.4497881531715393},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.37365663051605225},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/twc.2024.3413980","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2024.3413980","pdf_url":null,"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Wireless Communications","raw_type":"journal-article"},{"id":"pmh:oai:alma.44SUR_INST:11207180670002346","is_oa":false,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4210197018","display_name":"View","issn_l":"2688-268X","issn":["2688-268X","2688-3988"],"is_oa":false,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":""}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.5299999713897705,"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy"}],"awards":[{"id":"https://openalex.org/G2465789353","display_name":null,"funder_award_id":"IEC\\R3\\223079","funder_id":"https://openalex.org/F4320320006","funder_display_name":"Royal Society"},{"id":"https://openalex.org/G3307231356","display_name":null,"funder_award_id":"EP/X013162/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G4473851220","display_name":"New Signal Design and Processing for Future Vehicular Communications (DRIVE)","funder_award_id":"EP/X035352/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G4486442923","display_name":null,"funder_award_id":"311646/O70","funder_id":"https://openalex.org/F4320323299","funder_display_name":"Norges Forskningsr\u00e5d"},{"id":"https://openalex.org/G7919129960","display_name":"Evolving Sequences for Beyond-5G Machine-Type Communications (SORT)","funder_award_id":"EP/Y000986/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"}],"funders":[{"id":"https://openalex.org/F4320320006","display_name":"Royal Society","ror":"https://ror.org/03wnrjx87"},{"id":"https://openalex.org/F4320323299","display_name":"Norges Forskningsr\u00e5d","ror":"https://ror.org/00epmv149"},{"id":"https://openalex.org/F4320334627","display_name":"Engineering and Physical Sciences Research Council","ror":"https://ror.org/0439y7842"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":49,"referenced_works":["https://openalex.org/W2101617851","https://openalex.org/W2124300121","https://openalex.org/W2137813581","https://openalex.org/W2165723962","https://openalex.org/W2169103119","https://openalex.org/W2962886963","https://openalex.org/W2963030992","https://openalex.org/W2972252139","https://openalex.org/W3007836891","https://openalex.org/W3022137255","https://openalex.org/W3112379500","https://openalex.org/W3129823344","https://openalex.org/W3134567856","https://openalex.org/W3135141538","https://openalex.org/W3161771080","https://openalex.org/W3178250694","https://openalex.org/W3205582052","https://openalex.org/W4206536855","https://openalex.org/W4210439023","https://openalex.org/W4213263160","https://openalex.org/W4220957863","https://openalex.org/W4224250667","https://openalex.org/W4226406066","https://openalex.org/W4283464858","https://openalex.org/W4285210099","https://openalex.org/W4285242084","https://openalex.org/W4288064670","https://openalex.org/W4296438066","https://openalex.org/W4309263421","https://openalex.org/W4312321926","https://openalex.org/W4317437781","https://openalex.org/W4321482236","https://openalex.org/W4321607990","https://openalex.org/W4361853646","https://openalex.org/W4376478434","https://openalex.org/W4385409633","https://openalex.org/W4385473791","https://openalex.org/W4386265279","https://openalex.org/W4386473203","https://openalex.org/W4387870149","https://openalex.org/W4389352528","https://openalex.org/W4390873731","https://openalex.org/W4394730816","https://openalex.org/W4399601432","https://openalex.org/W4400276061","https://openalex.org/W4400276670","https://openalex.org/W6849955144","https://openalex.org/W6855458907","https://openalex.org/W6857461857"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2748952813","https://openalex.org/W1974895211","https://openalex.org/W2176409448","https://openalex.org/W2129841057","https://openalex.org/W3040712279","https://openalex.org/W2364769705","https://openalex.org/W2056136368","https://openalex.org/W2374664672","https://openalex.org/W4367555392"],"abstract_inverted_index":{"This":[0],"paper":[1],"studies":[2],"the":[3,29,33,37,50,62,77,99,150,153,163,170,176,182],"affine":[4],"frequency":[5],"division":[6],"multiplexing":[7],"(AFDM)-empowered":[8],"sparse":[9,30,95],"code":[10],"multiple":[11],"access":[12],"(SCMA)":[13],"system,":[14],"referred":[15,102],"to":[16,70,103],"as":[17,80,104],"AFDM-SCMA,":[18],"for":[19,85,97,133],"supporting":[20],"massive":[21],"connectivity":[22],"in":[23,109,160],"high-mobility":[24],"environments.":[25],"First,":[26],"by":[27],"placing":[28],"codewords":[31],"on":[32,140],"AFDM":[34],"chirp":[35,54],"subcarriers,":[36],"input-output":[38],"(I/O)":[39],"relation":[40],"of":[41,61,94,152,162],"AFDM-SCMA":[42,67,155],"systems":[43,156,159],"is":[44,68],"presented.":[45],"Next,":[46],"we":[47,89,116],"delve":[48],"into":[49],"generalized":[51],"receiver":[52,172],"design,":[53,88],"rate":[55,59,165,178],"selection,":[56],"and":[57,75,122,136],"error":[58,130,164,177],"performance":[60,179],"proposed":[63,66,154,171],"AFDM-SCMA.":[64],"The":[65],"shown":[69],"provide":[71],"a":[72,81,92,118],"general":[73],"framework":[74],"subsume":[76],"existing":[78],"OFDM-SCMA":[79,158],"special":[82],"case.":[83],"Third,":[84],"efficient":[86],"transceiver":[87],"further":[90],"propose":[91,117],"class":[93],"codebooks":[96],"simplifying":[98],"I/O":[100,105],"relation,":[101],"relation-inspired":[106],"codebook":[107],"design":[108],"this":[110],"paper.":[111],"Building":[112],"upon":[113],"these":[114],"codebooks,":[115],"novel":[119],"iterative":[120],"detection":[121,183],"decoding":[123],"scheme":[124],"with":[125],"linear":[126],"minimum":[127],"mean":[128],"square":[129],"(LMMSE)":[131],"estimator":[132],"both":[134],"downlink":[135],"uplink":[137],"channels":[138],"based":[139],"orthogonal":[141],"approximate":[142],"message":[143],"passing":[144],"principles.":[145],"Our":[146],"numerical":[147],"results":[148],"demonstrate":[149],"superiority":[151],"over":[157],"terms":[161],"performance.":[166],"We":[167],"show":[168],"that":[169],"can":[173],"significantly":[174],"enhance":[175],"while":[180],"reducing":[181],"complexity.":[184]},"counts_by_year":[{"year":2026,"cited_by_count":9},{"year":2025,"cited_by_count":37},{"year":2024,"cited_by_count":1}],"updated_date":"2026-03-27T14:29:43.386196","created_date":"2025-10-10T00:00:00"}