{"id":"https://openalex.org/W2748265480","doi":"https://doi.org/10.1109/tvt.2017.2741525","title":"Improved Message Passing Algorithms for Sparse Code Multiple Access","display_name":"Improved Message Passing Algorithms for Sparse Code Multiple Access","publication_year":2017,"publication_date":"2017-08-18","ids":{"openalex":"https://openalex.org/W2748265480","doi":"https://doi.org/10.1109/tvt.2017.2741525","mag":"2748265480"},"language":"en","primary_location":{"id":"doi:10.1109/tvt.2017.2741525","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2017.2741525","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":"https://openalex.org/A5069582226","display_name":"Jincheng Dai","orcid":"https://orcid.org/0000-0002-0310-568X"},"institutions":[{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Jincheng Dai","raw_affiliation_strings":["Key Laboratory of Universal Wireless Commun-ications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Key Laboratory of Universal Wireless Commun-ications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing, China","institution_ids":["https://openalex.org/I139759216"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008455605","display_name":"Kai Niu","orcid":"https://orcid.org/0000-0002-8076-1867"},"institutions":[{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Kai Niu","raw_affiliation_strings":["Key Laboratory of Universal Wireless Commun-ications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Key Laboratory of Universal Wireless Commun-ications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing, China","institution_ids":["https://openalex.org/I139759216"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5048708984","display_name":"Chao Dong","orcid":"https://orcid.org/0000-0002-4922-7762"},"institutions":[{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chao Dong","raw_affiliation_strings":["Key Laboratory of Universal Wireless Commun-ications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Key Laboratory of Universal Wireless Commun-ications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing, China","institution_ids":["https://openalex.org/I139759216"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5075023488","display_name":"Jiaru Lin","orcid":"https://orcid.org/0000-0001-6593-4419"},"institutions":[{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiaru Lin","raw_affiliation_strings":["Key Laboratory of Universal Wireless Commun-ications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Key Laboratory of Universal Wireless Commun-ications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing, China","institution_ids":["https://openalex.org/I139759216"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5069582226"],"corresponding_institution_ids":["https://openalex.org/I139759216"],"apc_list":null,"apc_paid":null,"fwci":3.4964,"has_fulltext":false,"cited_by_count":48,"citation_normalized_percentile":{"value":0.93260164,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"66","issue":"11","first_page":"9986","last_page":"9999"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":1.0,"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":1.0,"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/T12042","display_name":"Satellite Communication Systems","score":0.9943000078201294,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T12079","display_name":"IoT Networks and Protocols","score":0.991599977016449,"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":0.7290710806846619},{"id":"https://openalex.org/keywords/message-passing","display_name":"Message passing","score":0.6986074447631836},{"id":"https://openalex.org/keywords/lookup-table","display_name":"Lookup table","score":0.6329413652420044},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5937900543212891},{"id":"https://openalex.org/keywords/scheduling","display_name":"Scheduling (production processes)","score":0.5167412161827087},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.4963272213935852},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.49079498648643494},{"id":"https://openalex.org/keywords/convergence","display_name":"Convergence (economics)","score":0.4386276304721832},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.1725129783153534},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.14195576310157776}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7290710806846619},{"id":"https://openalex.org/C854659","wikidata":"https://www.wikidata.org/wiki/Q1859284","display_name":"Message passing","level":2,"score":0.6986074447631836},{"id":"https://openalex.org/C134835016","wikidata":"https://www.wikidata.org/wiki/Q690265","display_name":"Lookup table","level":2,"score":0.6329413652420044},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5937900543212891},{"id":"https://openalex.org/C206729178","wikidata":"https://www.wikidata.org/wiki/Q2271896","display_name":"Scheduling (production processes)","level":2,"score":0.5167412161827087},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.4963272213935852},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.49079498648643494},{"id":"https://openalex.org/C2777303404","wikidata":"https://www.wikidata.org/wiki/Q759757","display_name":"Convergence (economics)","level":2,"score":0.4386276304721832},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.1725129783153534},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.14195576310157776},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C50522688","wikidata":"https://www.wikidata.org/wiki/Q189833","display_name":"Economic growth","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tvt.2017.2741525","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2017.2741525","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/G4360370809","display_name":null,"funder_award_id":"61171099","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G728967117","display_name":null,"funder_award_id":"61671080","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":15,"referenced_works":["https://openalex.org/W1535687191","https://openalex.org/W1922937245","https://openalex.org/W2042519026","https://openalex.org/W2053230023","https://openalex.org/W2061766846","https://openalex.org/W2086456844","https://openalex.org/W2101394529","https://openalex.org/W2101435685","https://openalex.org/W2103972037","https://openalex.org/W2144015943","https://openalex.org/W2170923061","https://openalex.org/W2474899799","https://openalex.org/W2500307208","https://openalex.org/W2541373058","https://openalex.org/W2558871231"],"related_works":["https://openalex.org/W4235217501","https://openalex.org/W2354106728","https://openalex.org/W1513967072","https://openalex.org/W1582405267","https://openalex.org/W2350626096","https://openalex.org/W3011151575","https://openalex.org/W2462936459","https://openalex.org/W2117014006","https://openalex.org/W1591171990","https://openalex.org/W2888918673"],"abstract_inverted_index":{"Sparse":[0],"code":[1],"multiple":[2,10,187,196],"access":[3,11],"(SCMA)":[4],"is":[5,40,69,152,191],"one":[6],"of":[7,22,37,85,104,127,135,159,183,216,246],"the":[8,14,26,50,73,79,101,105,109,114,118,124,128,144,156,162,166,181,184,206,213,222,231,240,247],"nonorthogonal":[9],"techniques":[12],"for":[13,45,63,130],"5G":[15],"system.":[16],"SCMA":[17,66,81],"can":[18,122,226],"provide":[19],"different":[20,210],"levels":[21],"overloading":[23],"to":[24,99,113,141,154,200],"meet":[25],"diverse":[27],"traffic":[28],"connectivity":[29],"requirements.":[30],"However,":[31],"its":[32],"relatively":[33],"high":[34],"computational":[35,102],"complexity":[36,103],"multiuser":[38,67],"detection":[39],"still":[41],"a":[42,60,94,133,186],"significant":[43],"concern":[44],"practical":[46],"implementation,":[47],"even":[48],"when":[49],"sparse":[51],"structure":[52],"has":[53],"already":[54],"been":[55],"employed.":[56],"In":[57,111,193],"this":[58,194],"paper,":[59],"design":[61],"framework":[62],"an":[64],"improved":[65],"detector":[68],"proposed":[70,119,140],"based":[71],"on":[72],"message":[74,217],"passing":[75],"algorithm":[76],"(MPA).":[77],"As":[78],"primary":[80],"detector,":[82],"two":[83],"aspects":[84],"MPA":[86,129,149,189],"are":[87,139,172,198,219,250],"simplified":[88],"and":[89,169,175,204,224,236,243],"optimized.":[90],"First,":[91],"we":[92],"introduce":[93],"lookup":[95],"table":[96],"(LUT)":[97],"scheme":[98],"reduce":[100],"max*":[106],"operation":[107],"in":[108,165,202],"MPA.":[110,233],"contrast":[112],"extensive":[115],"Jacobian":[116],"approximation,":[117],"LUT":[120],"method":[121,151],"guarantee":[123],"stable":[125],"convergence":[126,157,244],"SCMA.":[131],"Second,":[132],"series":[134],"novel":[136],"scheduling":[137,148,188,214],"schemes":[138,249],"speed":[142],"up":[143],"convergence.":[145],"A":[146],"single":[147],"(SS-MPA)":[150],"given":[153],"enhance":[155],"performance":[158,242],"MPA,":[160,185],"where":[161],"soft":[163],"messages":[164,208],"function":[167],"nodes":[168,171],"variable":[170],"serially":[173],"calculated":[174],"synchronously":[176],"updated.":[177],"To":[178],"further":[179],"improve":[180],"throughput":[182],"(MS-MPA)":[190],"proposed.":[192],"method,":[195],"detectors":[197],"used":[199],"calculate":[201],"parallel":[203],"update":[205,218],"node":[207],"by":[209],"orders.":[211],"Since":[212],"strategies":[215],"optimized,":[220],"both":[221],"SS-MPA":[223],"MS-MPA":[225],"converge":[227],"more":[228],"quickly":[229],"than":[230],"conventional":[232],"Theoretical":[234],"analyses":[235],"simulation":[237],"results":[238],"regarding":[239],"error":[241],"properties":[245],"above":[248],"included.":[251]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":11},{"year":2020,"cited_by_count":12},{"year":2019,"cited_by_count":7},{"year":2018,"cited_by_count":5}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}