{"id":"https://openalex.org/W4317437781","doi":"https://doi.org/10.1109/twc.2023.3236383","title":"OTFS-SCMA: A Downlink NOMA Scheme for Massive Connectivity in High Mobility Channels","display_name":"OTFS-SCMA: A Downlink NOMA Scheme for Massive Connectivity in High Mobility Channels","publication_year":2023,"publication_date":"2023-01-19","ids":{"openalex":"https://openalex.org/W4317437781","doi":"https://doi.org/10.1109/twc.2023.3236383"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2023.3236383","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2023.3236383","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/A5064042007","display_name":"Haifeng Wen","orcid":"https://orcid.org/0000-0002-6287-688X"},"institutions":[{"id":"https://openalex.org/I3045169105","display_name":"Southern University of Science and Technology","ror":"https://ror.org/049tv2d57","country_code":"CN","type":"education","lineage":["https://openalex.org/I3045169105"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Haifeng Wen","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, China","Internet of Things Thrust, Information Hub, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, China"],"raw_orcid":"https://orcid.org/0000-0002-6287-688X","affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, China","institution_ids":["https://openalex.org/I3045169105"]},{"raw_affiliation_string":"Internet of Things Thrust, Information Hub, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5011236120","display_name":"Weijie Yuan","orcid":"https://orcid.org/0000-0002-2158-0046"},"institutions":[{"id":"https://openalex.org/I3045169105","display_name":"Southern University of Science and Technology","ror":"https://ror.org/049tv2d57","country_code":"CN","type":"education","lineage":["https://openalex.org/I3045169105"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weijie Yuan","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0002-2158-0046","affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, China","institution_ids":["https://openalex.org/I3045169105"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Zilong Liu","orcid":"https://orcid.org/0000-0001-5151-6929"},"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/0000-0001-5151-6929","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/A5045823074","display_name":"Shuangyang Li","orcid":"https://orcid.org/0000-0002-9503-4865"},"institutions":[{"id":"https://openalex.org/I177877127","display_name":"The University of Western Australia","ror":"https://ror.org/047272k79","country_code":"AU","type":"education","lineage":["https://openalex.org/I177877127"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Shuangyang Li","raw_affiliation_strings":["Department of Electrical, Electronic, and Computer Engineering, The University of Western Australia, Perth, WA, Australia"],"raw_orcid":"https://orcid.org/0000-0002-9503-4865","affiliations":[{"raw_affiliation_string":"Department of Electrical, Electronic, and Computer Engineering, The University of Western Australia, Perth, WA, Australia","institution_ids":["https://openalex.org/I177877127"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":4.207,"has_fulltext":false,"cited_by_count":50,"citation_normalized_percentile":{"value":0.95430701,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":99,"max":100},"biblio":{"volume":"22","issue":"9","first_page":"5770","last_page":"5784"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9998999834060669,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9998999834060669,"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":0.9991000294685364,"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":0.9980999827384949,"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/noma","display_name":"Noma","score":0.8762785196304321},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.7888028621673584},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7009384036064148},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.6075592637062073},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.5497602820396423},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.11163663864135742}],"concepts":[{"id":"https://openalex.org/C2775918612","wikidata":"https://www.wikidata.org/wiki/Q994794","display_name":"Noma","level":3,"score":0.8762785196304321},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7888028621673584},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7009384036064148},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.6075592637062073},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.5497602820396423},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.11163663864135742},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1109/twc.2023.3236383","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2023.3236383","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:repository.essex.ac.uk:34564","is_oa":false,"landing_page_url":"https://doi.org/10.1109/TWC.2023.3236383","pdf_url":null,"source":{"id":"https://openalex.org/S4306401236","display_name":"Open Access at Essex (University of Essex)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I110002522","host_organization_name":"University of Essex","host_organization_lineage":["https://openalex.org/I110002522"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":null,"raw_type":"Article"},{"id":"pmh:oai:pure.atira.dk:publications/87d1045a-4bc2-4950-80b2-6b52427c4424","is_oa":false,"landing_page_url":"https://research-repository.uwa.edu.au/en/publications/87d1045a-4bc2-4950-80b2-6b52427c4424","pdf_url":null,"source":{"id":"https://openalex.org/S4306402523","display_name":"UWA Profiles and Research Repository (University of Western Australia)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I177877127","host_organization_name":"The University of Western Australia","host_organization_lineage":["https://openalex.org/I177877127"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Wen, H, Yuan, W, Liu, Z & Li, S 2023, 'OTFS-SCMA : A Downlink NOMA Scheme for Massive Connectivity in High Mobility Channels', IEEE Transactions on Wireless Communications, vol. 22, no. 9, pp. 5770-5784. https://doi.org/10.1109/TWC.2023.3236383","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:repository.hkust.edu.hk:1783.1-136013","is_oa":false,"landing_page_url":"https://repository.hkust.edu.hk/ir/Record/1783.1-136013","pdf_url":null,"source":{"id":"https://openalex.org/S4306401796","display_name":"Rare & Special e-Zone (The Hong Kong University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I200769079","host_organization_name":"Hong Kong University of Science and Technology","host_organization_lineage":["https://openalex.org/I200769079"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Partnerships for the goals","id":"https://metadata.un.org/sdg/17","score":0.5199999809265137}],"awards":[{"id":"https://openalex.org/G1688952571","display_name":null,"funder_award_id":"JCYJ20220530114412029","funder_id":"https://openalex.org/F4320336569","funder_display_name":"Shenzhen Science and Technology Innovation Program"},{"id":"https://openalex.org/G203086983","display_name":null,"funder_award_id":"311646/070","funder_id":"https://openalex.org/F4320323299","funder_display_name":"Norges Forskningsr\u00e5d"},{"id":"https://openalex.org/G2574349962","display_name":null,"funder_award_id":"62101232","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5449388699","display_name":null,"funder_award_id":"EP/P03456X/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G5812676937","display_name":null,"funder_award_id":"2022A1515011257","funder_id":"https://openalex.org/F4320321921","funder_display_name":"Natural Science Foundation of Guangdong Province"},{"id":"https://openalex.org/G7806824190","display_name":"New Air Interface Techniques for Future Massive Machine Communications","funder_award_id":"EP/P03456X/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320321921","display_name":"Natural Science Foundation of Guangdong Province","ror":null},{"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"},{"id":"https://openalex.org/F4320336569","display_name":"Shenzhen Science and Technology Innovation Program","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":48,"referenced_works":["https://openalex.org/W1958281780","https://openalex.org/W2000828982","https://openalex.org/W2008104692","https://openalex.org/W2012197287","https://openalex.org/W2042519026","https://openalex.org/W2098995249","https://openalex.org/W2124894634","https://openalex.org/W2129927143","https://openalex.org/W2150940322","https://openalex.org/W2327669095","https://openalex.org/W2567891236","https://openalex.org/W2612254130","https://openalex.org/W2807511543","https://openalex.org/W2888002205","https://openalex.org/W2899131610","https://openalex.org/W2899406779","https://openalex.org/W2908111164","https://openalex.org/W2950013137","https://openalex.org/W2962886963","https://openalex.org/W2962896080","https://openalex.org/W2963336322","https://openalex.org/W2963916830","https://openalex.org/W2978825329","https://openalex.org/W2981096252","https://openalex.org/W2990723501","https://openalex.org/W3010798086","https://openalex.org/W3011830499","https://openalex.org/W3099350037","https://openalex.org/W3112162188","https://openalex.org/W3112379500","https://openalex.org/W3120875796","https://openalex.org/W3120998525","https://openalex.org/W3128173373","https://openalex.org/W3134567856","https://openalex.org/W3154139020","https://openalex.org/W3161771080","https://openalex.org/W3172643713","https://openalex.org/W3186785202","https://openalex.org/W3189209457","https://openalex.org/W3200797369","https://openalex.org/W3205407875","https://openalex.org/W4206924922","https://openalex.org/W4225751444","https://openalex.org/W4244375620","https://openalex.org/W4248709896","https://openalex.org/W4283464858","https://openalex.org/W4297310181","https://openalex.org/W4297310221"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W3030525848","https://openalex.org/W4385197910","https://openalex.org/W2340639785","https://openalex.org/W3010814398","https://openalex.org/W3165611029","https://openalex.org/W2370038111","https://openalex.org/W4392158087"],"abstract_inverted_index":{"This":[0,48],"paper":[1],"studies":[2],"a":[3,26,45,91,126],"downlink":[4,117],"system":[5,33],"that":[6,83],"combines":[7],"orthogonal-time-frequency-space":[8],"(OTFS)":[9],"modulation":[10],"and":[11,41,61,124,144,150],"sparse":[12],"code":[13],"multiple":[14],"access":[15],"(SCMA)":[16],"to":[17,71,119,157],"support":[18],"massive":[19],"connectivity":[20],"in":[21,44,94],"high-mobility":[22],"environments.":[23],"We":[24,81],"propose":[25],"cross-domain":[27],"receiver":[28],"for":[29],"the":[30,54,58,62,67,73,84,95,104,108,114,121,133,142,147,158],"considered":[31],"OTFS-SCMA":[32,86,110],"which":[34],"efficiently":[35],"carries":[36],"out":[37],"OTFS":[38,160],"symbol":[39],"estimation":[40],"SCMA":[42],"decoding":[43],"joint":[46],"manner.":[47],"is":[49],"done":[50],"by":[51],"iteratively":[52],"passing":[53],"extrinsic":[55],"information":[56],"between":[57,116],"time":[59],"domain":[60,65],"delay-Doppler":[63],"(DD)":[64],"via":[66],"corresponding":[68],"unitary":[69],"transformation":[70],"ensure":[72],"principal":[74],"orthogonality":[75],"of":[76,107,135,146],"errors":[77],"from":[78],"each":[79],"domain.":[80],"show":[82,151],"proposed":[85,109,148],"detection":[87,129],"algorithm":[88,131,149],"exists":[89],"at":[90],"fixed":[92],"point":[93],"state":[96],"evolution":[97],"when":[98],"it":[99],"converges.":[100],"To":[101],"further":[102],"enhance":[103],"error":[105],"performance":[106],"system,":[111],"we":[112],"investigate":[113],"cooperation":[115],"users":[118],"exploit":[120],"diversity":[122],"gains":[123],"develop":[125],"distributed":[127],"cooperative":[128],"(DCD)":[130],"with":[132],"aid":[134],"belief":[136],"consensus.":[137],"Our":[138],"numerical":[139],"results":[140],"demonstrate":[141],"effectiveness":[143],"convergence":[145],"an":[152],"increased":[153],"spectral":[154],"efficiency":[155],"compared":[156],"conventional":[159],"transmission.":[161]},"counts_by_year":[{"year":2026,"cited_by_count":4},{"year":2025,"cited_by_count":19},{"year":2024,"cited_by_count":16},{"year":2023,"cited_by_count":11}],"updated_date":"2026-07-16T13:24:37.021932","created_date":"2025-10-10T00:00:00"}
