{"id":"https://openalex.org/W7155089067","doi":"https://doi.org/10.1109/twc.2026.3683570","title":"Non-Orthogonal Affine Frequency Division Multiplexing for Spectrally Efficient High-Mobility Communications","display_name":"Non-Orthogonal Affine Frequency Division Multiplexing for Spectrally Efficient High-Mobility Communications","publication_year":2026,"publication_date":"2026-01-01","ids":{"openalex":"https://openalex.org/W7155089067","doi":"https://doi.org/10.1109/twc.2026.3683570"},"language":null,"primary_location":{"id":"doi:10.1109/twc.2026.3683570","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2026.3683570","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/A5101612033","display_name":"Qin Yi","orcid":"https://orcid.org/0000-0003-4520-4536"},"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":"Qin Yi","raw_affiliation_strings":["School of Computer Science and Electronic Engineering, University of Essex, Colchester, U.K"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Computer Science and Electronic Engineering, University of Essex, Colchester, U.K","institution_ids":["https://openalex.org/I110002522"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5134174999","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 Electronic Engineering, University of Essex, Colchester, U.K"],"raw_orcid":"https://orcid.org/0000-0002-5851-4261","affiliations":[{"raw_affiliation_string":"School of Computer Science and Electronic Engineering, University of Essex, Colchester, U.K","institution_ids":["https://openalex.org/I110002522"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016462759","display_name":"Leila Musavian","orcid":"https://orcid.org/0000-0002-5276-1157"},"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":"Leila Musavian","raw_affiliation_strings":["School of Computer Science and Electronic Engineering, University of Essex, Colchester, U.K"],"raw_orcid":"https://orcid.org/0000-0002-5276-1157","affiliations":[{"raw_affiliation_string":"School of Computer Science and Electronic Engineering, University of Essex, Colchester, U.K","institution_ids":["https://openalex.org/I110002522"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5069958156","display_name":"Zeping Sui","orcid":"https://orcid.org/0000-0001-7960-2925"},"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":"Zeping Sui","raw_affiliation_strings":["School of Computer Science and Electronic Engineering, University of Essex, Colchester, U.K"],"raw_orcid":"https://orcid.org/0000-0001-7960-2925","affiliations":[{"raw_affiliation_string":"School of Computer Science and Electronic Engineering, University of Essex, Colchester, U.K","institution_ids":["https://openalex.org/I110002522"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I110002522"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.41396585,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"25","issue":null,"first_page":"15758","last_page":"15774"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.3418000042438507,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.3418000042438507,"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":0.11559999734163284,"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/T11873","display_name":"PAPR reduction in OFDM","score":0.09369999915361404,"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/multiplexing","display_name":"Multiplexing","score":0.5638999938964844},{"id":"https://openalex.org/keywords/frequency-division-multiplexing","display_name":"Frequency-division multiplexing","score":0.5302000045776367},{"id":"https://openalex.org/keywords/time-division-multiplexing","display_name":"Time-division multiplexing","score":0.48829999566078186},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.423799991607666},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.3953999876976013},{"id":"https://openalex.org/keywords/affine-transformation","display_name":"Affine transformation","score":0.38179999589920044},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.3594000041484833},{"id":"https://openalex.org/keywords/statistical-time-division-multiplexing","display_name":"Statistical time division multiplexing","score":0.32820001244544983},{"id":"https://openalex.org/keywords/division","display_name":"Division (mathematics)","score":0.3125999867916107}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6927000284194946},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.5638999938964844},{"id":"https://openalex.org/C89061704","wikidata":"https://www.wikidata.org/wiki/Q5555726","display_name":"Frequency-division multiplexing","level":4,"score":0.5302000045776367},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.49470001459121704},{"id":"https://openalex.org/C50661577","wikidata":"https://www.wikidata.org/wiki/Q901831","display_name":"Time-division multiplexing","level":3,"score":0.48829999566078186},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.423799991607666},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3971000015735626},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.3953999876976013},{"id":"https://openalex.org/C92757383","wikidata":"https://www.wikidata.org/wiki/Q382497","display_name":"Affine transformation","level":2,"score":0.38179999589920044},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.3594000041484833},{"id":"https://openalex.org/C173512123","wikidata":"https://www.wikidata.org/wiki/Q5978010","display_name":"Statistical time division multiplexing","level":3,"score":0.32820001244544983},{"id":"https://openalex.org/C60798267","wikidata":"https://www.wikidata.org/wiki/Q1226939","display_name":"Division (mathematics)","level":2,"score":0.3125999867916107},{"id":"https://openalex.org/C105344744","wikidata":"https://www.wikidata.org/wiki/Q958957","display_name":"Spread spectrum","level":3,"score":0.3100999891757965},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.3100000023841858},{"id":"https://openalex.org/C19118579","wikidata":"https://www.wikidata.org/wiki/Q786423","display_name":"Frequency domain","level":2,"score":0.29789999127388},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.2930999994277954},{"id":"https://openalex.org/C142433447","wikidata":"https://www.wikidata.org/wiki/Q7806653","display_name":"Time\u2013frequency analysis","level":3,"score":0.29170000553131104},{"id":"https://openalex.org/C129404179","wikidata":"https://www.wikidata.org/wiki/Q1469765","display_name":"Optical communication","level":2,"score":0.289000004529953},{"id":"https://openalex.org/C2778562939","wikidata":"https://www.wikidata.org/wiki/Q1298791","display_name":"Synchronization (alternating current)","level":3,"score":0.28790000081062317},{"id":"https://openalex.org/C2986910011","wikidata":"https://www.wikidata.org/wiki/Q17517","display_name":"Cellular radio","level":3,"score":0.2874999940395355},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.2872999906539917},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2806999981403351},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.27250000834465027},{"id":"https://openalex.org/C47696715","wikidata":"https://www.wikidata.org/wiki/Q233394","display_name":"Code division multiple access","level":2,"score":0.27239999175071716},{"id":"https://openalex.org/C121308736","wikidata":"https://www.wikidata.org/wiki/Q149918","display_name":"Communications satellite","level":3,"score":0.26899999380111694},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.26339998841285706},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.2554999887943268},{"id":"https://openalex.org/C134579502","wikidata":"https://www.wikidata.org/wiki/Q1455619","display_name":"Frequency allocation","level":2,"score":0.25029999017715454},{"id":"https://openalex.org/C74982907","wikidata":"https://www.wikidata.org/wiki/Q1455624","display_name":"Frequency divider","level":3,"score":0.2502000033855438}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/twc.2026.3683570","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2026.3683570","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"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.4640763998031616,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[{"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"}],"funders":[{"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":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"This":[0],"paper":[1],"proposes":[2],"a":[3,27,96,118,124,199],"novel":[4],"non-orthogonal":[5,92],"affine":[6],"frequency":[7],"division":[8],"multiplexing":[9],"(nAFDM)":[10],"waveform":[11,162],"for":[12],"reliable":[13],"high-mobility":[14],"communications":[15],"with":[16],"enhanced":[17],"spectral":[18],"efficiency":[19],"(SE).":[20],"The":[21],"key":[22],"idea":[23],"is":[24,69,166],"to":[25,35,87,156,173],"introduce":[26],"bandwidth":[28,108],"compression":[29,109],"factor":[30],"into":[31],"the":[32,43,49,63,89,107,113,130,147,179,190],"AFDM":[33],"modulator":[34],"enable":[36],"controllable":[37],"subcarrier":[38],"overlapping.":[39],"We":[40],"first":[41],"detail":[42],"proposed":[44,148,180,191],"nAFDM":[45,57,149,165,181],"transceiver":[46],"and":[47,123,177,189,203],"derive":[48,95],"corresponding":[50],"input-output":[51],"signal":[52,58],"relationship.":[53],"Then,":[54],"an":[55,183],"efficient":[56],"generation":[59],"method":[60],"based":[61],"on":[62,106],"inverse":[64,76],"discrete":[65],"Fourier":[66,78],"transform":[67,79],"(IDFT)":[68],"proposed,":[70],"enabling":[71],"practical":[72],"implementation":[73,126],"using":[74],"existing":[75,175],"fast":[77],"(IFFT)":[80],"modules":[81],"without":[82],"additional":[83],"hardware":[84],"complexity.":[85,204],"Next,":[86],"characterize":[88],"impact":[90],"of":[91,99,133,142,168],"modulation,":[93],"we":[94,116],"closed-form":[97],"expression":[98],"inter-carrier":[100],"interference":[101],"(ICI),":[102],"showing":[103],"its":[104],"dependence":[105],"factor.":[110],"To":[111],"mitigate":[112],"resulting":[114],"interference,":[115],"propose":[117],"soft":[119,192],"iterative":[120,193],"detection":[121,194],"algorithm":[122],"low-complexity":[125],"approach":[127],"that":[128,138],"leverages":[129],"distribution":[131],"characteristics":[132],"ICI.":[134],"Simulation":[135],"results":[136],"demonstrate":[137],"1)":[139],"in":[140],"terms":[141],"bit":[143],"error":[144],"rate":[145],"(BER),":[146],"can":[150,197],"achieve":[151],"nearly":[152],"identical":[153],"BER":[154,185,202],"compared":[155,172],"conventional":[157],"AFDM,":[158],"while":[159],"outperforms":[160],"other":[161,174],"counterparts;":[163],"2)":[164],"capable":[167],"striking":[169],"higher":[170],"SE":[171,187],"waveforms;":[176],"3)":[178],"achieves":[182],"attractive":[184],"vs.":[186],"trade-off,":[188],"(ID)":[195],"scheme":[196],"attain":[198],"trade-off":[200],"between":[201]},"counts_by_year":[],"updated_date":"2026-04-28T06:04:28.489925","created_date":"2026-04-22T00:00:00"}