{"id":"https://openalex.org/W3121481748","doi":"https://doi.org/10.1109/globecom42002.2020.9322613","title":"Unified Iterative Receiver Design in Uplink Grant-Free Massive MIMO SCMA Systems","display_name":"Unified Iterative Receiver Design in Uplink Grant-Free Massive MIMO SCMA Systems","publication_year":2020,"publication_date":"2020-12-01","ids":{"openalex":"https://openalex.org/W3121481748","doi":"https://doi.org/10.1109/globecom42002.2020.9322613","mag":"3121481748"},"language":"en","primary_location":{"id":"doi:10.1109/globecom42002.2020.9322613","is_oa":false,"landing_page_url":"https://doi.org/10.1109/globecom42002.2020.9322613","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2020 - 2020 IEEE Global Communications Conference","raw_type":"proceedings-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/A5101546250","display_name":"Yining Li","orcid":"https://orcid.org/0000-0003-4761-2293"},"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":true,"raw_author_name":"Yining Li","raw_affiliation_strings":["Purple Mountain Laboratories,Nanjing,China","Purple Mountain Laboratories, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Purple Mountain Laboratories,Nanjing,China","institution_ids":["https://openalex.org/I4210155350"]},{"raw_affiliation_string":"Purple Mountain Laboratories, Nanjing, China","institution_ids":["https://openalex.org/I4210155350"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100636788","display_name":"Wenjin Wang","orcid":"https://orcid.org/0000-0002-5600-6589"},"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":"Wenjin Wang","raw_affiliation_strings":["Purple Mountain Laboratories,Nanjing,China","Purple Mountain Laboratories, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Purple Mountain Laboratories,Nanjing,China","institution_ids":["https://openalex.org/I4210155350"]},{"raw_affiliation_string":"Purple Mountain Laboratories, Nanjing, China","institution_ids":["https://openalex.org/I4210155350"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5009249938","display_name":"Xiaohang Song","orcid":"https://orcid.org/0000-0001-5959-8703"},"institutions":[{"id":"https://openalex.org/I245417339","display_name":"Vodafone (Germany)","ror":"https://ror.org/044qwkx83","country_code":"DE","type":"company","lineage":["https://openalex.org/I245417339","https://openalex.org/I74316835"]},{"id":"https://openalex.org/I78650965","display_name":"TU Dresden","ror":"https://ror.org/042aqky30","country_code":"DE","type":"education","lineage":["https://openalex.org/I78650965"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Xiaohang Song","raw_affiliation_strings":["Vodafone Chair Mobile Communications Systems, Technische Universität,Dresden,Germany","Vodafone Chair Mobile Communications Systems, Technische Universit\u00e4t, Dresden, Germany"],"affiliations":[{"raw_affiliation_string":"Vodafone Chair Mobile Communications Systems, Technische Universität,Dresden,Germany","institution_ids":["https://openalex.org/I245417339"]},{"raw_affiliation_string":"Vodafone Chair Mobile Communications Systems, Technische Universit\u00e4t, Dresden, Germany","institution_ids":["https://openalex.org/I245417339","https://openalex.org/I78650965"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5050692023","display_name":"Xiqi Gao","orcid":"https://orcid.org/0000-0001-9107-6593"},"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":"Xiqi Gao","raw_affiliation_strings":["Purple Mountain Laboratories,Nanjing,China","Purple Mountain Laboratories, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Purple Mountain Laboratories,Nanjing,China","institution_ids":["https://openalex.org/I4210155350"]},{"raw_affiliation_string":"Purple Mountain Laboratories, Nanjing, China","institution_ids":["https://openalex.org/I4210155350"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100435923","display_name":"Lei Wang","orcid":"https://orcid.org/0000-0002-4463-2304"},"institutions":[{"id":"https://openalex.org/I2250955327","display_name":"Huawei Technologies (China)","ror":"https://ror.org/00cmhce21","country_code":"CN","type":"company","lineage":["https://openalex.org/I2250955327"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lei Wang","raw_affiliation_strings":["Huawei Technologies, Co. Ltd.,Shanghai,China","Huawei Technologies, Co. Ltd., Shanghai, China"],"affiliations":[{"raw_affiliation_string":"Huawei Technologies, Co. Ltd.,Shanghai,China","institution_ids":["https://openalex.org/I2250955327"]},{"raw_affiliation_string":"Huawei Technologies, Co. Ltd., Shanghai, China","institution_ids":["https://openalex.org/I2250955327"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5022117288","display_name":"Gerhard Fettweis","orcid":"https://orcid.org/0000-0003-4622-1311"},"institutions":[{"id":"https://openalex.org/I245417339","display_name":"Vodafone (Germany)","ror":"https://ror.org/044qwkx83","country_code":"DE","type":"company","lineage":["https://openalex.org/I245417339","https://openalex.org/I74316835"]},{"id":"https://openalex.org/I78650965","display_name":"TU Dresden","ror":"https://ror.org/042aqky30","country_code":"DE","type":"education","lineage":["https://openalex.org/I78650965"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Gerhard P. Fettweis","raw_affiliation_strings":["Vodafone Chair Mobile Communications Systems, Technische Universität,Dresden,Germany","Vodafone Chair Mobile Communications Systems, Technische Universit\u00e4t, Dresden, Germany"],"affiliations":[{"raw_affiliation_string":"Vodafone Chair Mobile Communications Systems, Technische Universität,Dresden,Germany","institution_ids":["https://openalex.org/I245417339"]},{"raw_affiliation_string":"Vodafone Chair Mobile Communications Systems, Technische Universit\u00e4t, Dresden, Germany","institution_ids":["https://openalex.org/I245417339","https://openalex.org/I78650965"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5101546250"],"corresponding_institution_ids":["https://openalex.org/I4210155350"],"apc_list":null,"apc_paid":null,"fwci":0.2055,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.53377565,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9993000030517578,"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/T10964","display_name":"Wireless Communication Security Techniques","score":0.9993000030517578,"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/telecommunications-link","display_name":"Telecommunications link","score":0.7549940347671509},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.727470874786377},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6404083371162415},{"id":"https://openalex.org/keywords/message-passing","display_name":"Message passing","score":0.5195125341415405},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.5129339694976807},{"id":"https://openalex.org/keywords/multiuser-detection","display_name":"Multiuser detection","score":0.49587807059288025},{"id":"https://openalex.org/keywords/joint","display_name":"Joint (building)","score":0.47634437680244446},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.47114434838294983},{"id":"https://openalex.org/keywords/random-access","display_name":"Random access","score":0.4587467312812805},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4528348445892334},{"id":"https://openalex.org/keywords/computer-engineering","display_name":"Computer engineering","score":0.4231742322444916},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.37225180864334106},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1913377344608307},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.19080513715744019},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.16718199849128723},{"id":"https://openalex.org/keywords/code-division-multiple-access","display_name":"Code division multiple access","score":0.15978914499282837},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.11692637205123901}],"concepts":[{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7549940347671509},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.727470874786377},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6404083371162415},{"id":"https://openalex.org/C854659","wikidata":"https://www.wikidata.org/wiki/Q1859284","display_name":"Message passing","level":2,"score":0.5195125341415405},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.5129339694976807},{"id":"https://openalex.org/C2777104032","wikidata":"https://www.wikidata.org/wiki/Q16324514","display_name":"Multiuser detection","level":3,"score":0.49587807059288025},{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.47634437680244446},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.47114434838294983},{"id":"https://openalex.org/C101722063","wikidata":"https://www.wikidata.org/wiki/Q218825","display_name":"Random access","level":2,"score":0.4587467312812805},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4528348445892334},{"id":"https://openalex.org/C113775141","wikidata":"https://www.wikidata.org/wiki/Q428691","display_name":"Computer engineering","level":1,"score":0.4231742322444916},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.37225180864334106},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1913377344608307},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.19080513715744019},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.16718199849128723},{"id":"https://openalex.org/C47696715","wikidata":"https://www.wikidata.org/wiki/Q233394","display_name":"Code division multiple access","level":2,"score":0.15978914499282837},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.11692637205123901},{"id":"https://openalex.org/C170154142","wikidata":"https://www.wikidata.org/wiki/Q150737","display_name":"Architectural engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/globecom42002.2020.9322613","is_oa":false,"landing_page_url":"https://doi.org/10.1109/globecom42002.2020.9322613","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2020 - 2020 IEEE Global Communications Conference","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G131122710","display_name":null,"funder_award_id":"SBK2019050020","funder_id":"https://openalex.org/F4320334982","funder_display_name":"Basic Research Program of Jiangsu Province"},{"id":"https://openalex.org/G168894859","display_name":null,"funder_award_id":"61761136016,61801114,61631018","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G2191857198","display_name":null,"funder_award_id":"2019YFB1803102","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"},{"id":"https://openalex.org/G2918307682","display_name":null,"funder_award_id":"BK20170688","funder_id":"https://openalex.org/F4320322769","funder_display_name":"Natural Science Foundation of Jiangsu Province"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320322769","display_name":"Natural Science Foundation of Jiangsu Province","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320334982","display_name":"Basic Research Program of Jiangsu Province","ror":null},{"id":"https://openalex.org/F4320335777","display_name":"National Key Research and Development Program of China","ror":null},{"id":"https://openalex.org/F4320335787","display_name":"Fundamental Research Funds for the Central Universities","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W1510028821","https://openalex.org/W1535687191","https://openalex.org/W1575828036","https://openalex.org/W2042519026","https://openalex.org/W2131489444","https://openalex.org/W2137813581","https://openalex.org/W2142015064","https://openalex.org/W2166670884","https://openalex.org/W2706056020","https://openalex.org/W2714011371","https://openalex.org/W2784331297","https://openalex.org/W2792046898","https://openalex.org/W2883289908","https://openalex.org/W2914737894","https://openalex.org/W2963408947","https://openalex.org/W2964279641","https://openalex.org/W3001370401","https://openalex.org/W3003897381","https://openalex.org/W3010667791","https://openalex.org/W3098350033"],"related_works":["https://openalex.org/W2548963335","https://openalex.org/W2159941915","https://openalex.org/W1995129237","https://openalex.org/W4388081250","https://openalex.org/W2909457694","https://openalex.org/W1761601995","https://openalex.org/W2904599916","https://openalex.org/W4321608401","https://openalex.org/W4300468626","https://openalex.org/W4285169015"],"abstract_inverted_index":{"In":[0,29],"machine-type":[1],"communication":[2],"scenarios,":[3],"sparse":[4],"code":[5],"multiple":[6,13],"access":[7,14],"(SCMA)":[8],"is":[9,118],"a":[10,121],"promising":[11],"non-orthogonal":[12],"(NOMA)":[15],"scheme":[16],"owing":[17],"to":[18,32,106,150],"shaping":[19],"gain":[20],"by":[21],"combining":[22],"constellation":[23],"modulation":[24],"and":[25,57,78,95,115,137,147,167,176],"spreading":[26],"patterns":[27],"together.":[28],"this":[30],"paper,":[31],"fully":[33],"exploit":[34,131],"the":[35,45,76,84,108,132,152,159,172,180],"channel":[36,51,88],"knowledge":[37],"contained":[38],"in":[39,65,104,144,179],"received":[40,92],"data":[41,96],"sequences,":[42],"we":[43,130],"propose":[44],"joint":[46,113,126,145,177],"active":[47,101],"user":[48],"detection":[49,55],"(AUD),":[50],"estimation":[52,82],"(CE),":[53],"multi-user":[54],"(MUD),":[56],"decoding":[58],"receiver":[59,86,153,162,175,178],"without":[60],"knowing":[61],"users'":[62],"activity":[63],"parameters":[64],"uplink":[66],"grant-free":[67],"massive":[68],"multiple-input":[69],"multiple-output":[70],"(MIMO)":[71],"SCMA":[72,133],"systems.":[73],"To":[74],"avoid":[75],"permutation":[77],"scaling":[79],"ambiguities":[80],"of":[81],"results,":[83],"proposed":[85,160],"estimates":[87],"based":[89],"on":[90,141],"both":[91],"short":[93],"pilot":[94],"sequences.":[97],"We":[98],"introduce":[99],"auxiliary":[100],"state":[102],"indicators":[103],"AUD":[105],"describe":[107],"sporadic":[109],"transmission":[110],"feature.":[111],"The":[112],"CE":[114,146],"MUD":[116,148],"module":[117,149],"constructed":[119],"as":[120],"bilinear":[122],"inference":[123],"problem":[124],"with":[125],"column-wise":[127],"sparsity.":[128],"Furthermore,":[129],"codewords":[134],"sparsity":[135],"feature":[136],"put":[138],"Gaussian":[139],"approximations":[140],"modulated":[142],"symbols":[143],"reduce":[151],"complexity.":[154],"Simulation":[155],"results":[156],"show":[157],"that":[158],"unified":[161],"has":[163],"substantial":[164],"performance":[165],"improvement":[166],"lower":[168],"computational":[169],"complexity":[170],"than":[171],"conventional":[173],"two-stage":[174],"literature.":[181]},"counts_by_year":[{"year":2022,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}