{"id":"https://openalex.org/W3136886760","doi":"https://doi.org/10.1109/lwc.2021.3066042","title":"Cell-Free Massive MIMO-NOMA Systems With Imperfect SIC and Non-Reciprocal Channels","display_name":"Cell-Free Massive MIMO-NOMA Systems With Imperfect SIC and Non-Reciprocal Channels","publication_year":2021,"publication_date":"2021-03-15","ids":{"openalex":"https://openalex.org/W3136886760","doi":"https://doi.org/10.1109/lwc.2021.3066042","mag":"3136886760"},"language":"en","primary_location":{"id":"doi:10.1109/lwc.2021.3066042","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2021.3066042","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"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 Wireless Communications Letters","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/A5003665967","display_name":"Aline Ohashi","orcid":"https://orcid.org/0000-0002-2763-2660"},"institutions":[{"id":"https://openalex.org/I59606676","display_name":"Universidade Federal do Par\u00e1","ror":"https://ror.org/03q9sr818","country_code":"BR","type":"education","lineage":["https://openalex.org/I59606676"]}],"countries":["BR"],"is_corresponding":true,"raw_author_name":"Aline A. Ohashi","raw_affiliation_strings":["Applied Electromagnetism Laboratory, Federal University of Par\u00e1, Bel\u00e9m, Brazil"],"affiliations":[{"raw_affiliation_string":"Applied Electromagnetism Laboratory, Federal University of Par\u00e1, Bel\u00e9m, Brazil","institution_ids":["https://openalex.org/I59606676"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021191255","display_name":"Daniel Benevides da Costa","orcid":"https://orcid.org/0000-0002-5439-7475"},"institutions":[{"id":"https://openalex.org/I243754102","display_name":"Universidade Federal do Cear\u00e1","ror":"https://ror.org/03srtnf24","country_code":"BR","type":"education","lineage":["https://openalex.org/I243754102"]},{"id":"https://openalex.org/I75357094","display_name":"National Yunlin University of Science and Technology","ror":"https://ror.org/04qkq2m54","country_code":"TW","type":"education","lineage":["https://openalex.org/I75357094"]}],"countries":["BR","TW"],"is_corresponding":false,"raw_author_name":"Daniel Benevides da Costa","raw_affiliation_strings":["Department of Computer Engineering, Federal University of Cear\u00e1, Sobral, Brazil","Future Technology Research Center, National Yunlin University of Science and Technology, Douliu, Yunlin, Taiwan, R.O.C"],"affiliations":[{"raw_affiliation_string":"Department of Computer Engineering, Federal University of Cear\u00e1, Sobral, Brazil","institution_ids":["https://openalex.org/I243754102"]},{"raw_affiliation_string":"Future Technology Research Center, National Yunlin University of Science and Technology, Douliu, Yunlin, Taiwan, R.O.C","institution_ids":["https://openalex.org/I75357094"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031522142","display_name":"Andr\u00e9 Fernandes","orcid":"https://orcid.org/0000-0002-8202-4430"},"institutions":[{"id":"https://openalex.org/I59606676","display_name":"Universidade Federal do Par\u00e1","ror":"https://ror.org/03q9sr818","country_code":"BR","type":"education","lineage":["https://openalex.org/I59606676"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Andre L. P. Fernandes","raw_affiliation_strings":["Applied Electromagnetism Laboratory, Federal University of Par\u00e1, Bel\u00e9m, Brazil"],"affiliations":[{"raw_affiliation_string":"Applied Electromagnetism Laboratory, Federal University of Par\u00e1, Bel\u00e9m, Brazil","institution_ids":["https://openalex.org/I59606676"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021072788","display_name":"Waldeir Monteiro","orcid":null},"institutions":[{"id":"https://openalex.org/I59606676","display_name":"Universidade Federal do Par\u00e1","ror":"https://ror.org/03q9sr818","country_code":"BR","type":"education","lineage":["https://openalex.org/I59606676"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Waldeir Monteiro","raw_affiliation_strings":["Applied Electromagnetism Laboratory, Federal University of Par\u00e1, Bel\u00e9m, Brazil"],"affiliations":[{"raw_affiliation_string":"Applied Electromagnetism Laboratory, Federal University of Par\u00e1, Bel\u00e9m, Brazil","institution_ids":["https://openalex.org/I59606676"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5017309860","display_name":"Ruan Victor Pereira Failache","orcid":null},"institutions":[{"id":"https://openalex.org/I59606676","display_name":"Universidade Federal do Par\u00e1","ror":"https://ror.org/03q9sr818","country_code":"BR","type":"education","lineage":["https://openalex.org/I59606676"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Ruan Failache","raw_affiliation_strings":["Applied Electromagnetism Laboratory, Federal University of Par\u00e1, Bel\u00e9m, Brazil"],"affiliations":[{"raw_affiliation_string":"Applied Electromagnetism Laboratory, Federal University of Par\u00e1, Bel\u00e9m, Brazil","institution_ids":["https://openalex.org/I59606676"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5039109027","display_name":"Andr\u00e9 Mendes Cavalcante","orcid":"https://orcid.org/0000-0003-1383-7881"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Andre Mendes Cavalcante","raw_affiliation_strings":["Ericsson Research, Ericsson Telecomunica\u00e7\u00f5es S. A., S\u00e3o Paulo, Brazil"],"affiliations":[{"raw_affiliation_string":"Ericsson Research, Ericsson Telecomunica\u00e7\u00f5es S. A., S\u00e3o Paulo, Brazil","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5039054328","display_name":"Jo\u00e3o C. W. A. Costa","orcid":"https://orcid.org/0000-0003-4482-6886"},"institutions":[{"id":"https://openalex.org/I59606676","display_name":"Universidade Federal do Par\u00e1","ror":"https://ror.org/03q9sr818","country_code":"BR","type":"education","lineage":["https://openalex.org/I59606676"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Joao C. W. A. Costa","raw_affiliation_strings":["Applied Electromagnetism Laboratory, Federal University of Par\u00e1, Bel\u00e9m, Brazil"],"affiliations":[{"raw_affiliation_string":"Applied Electromagnetism Laboratory, Federal University of Par\u00e1, Bel\u00e9m, Brazil","institution_ids":["https://openalex.org/I59606676"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5003665967"],"corresponding_institution_ids":["https://openalex.org/I59606676"],"apc_list":null,"apc_paid":null,"fwci":1.8215,"has_fulltext":false,"cited_by_count":23,"citation_normalized_percentile":{"value":0.84931201,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":"10","issue":"6","first_page":"1329","last_page":"1333"},"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":0.9991000294685364,"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/T11392","display_name":"Energy Harvesting in Wireless Networks","score":0.9959999918937683,"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":0.816369354724884},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.8028723001480103},{"id":"https://openalex.org/keywords/imperfect","display_name":"Imperfect","score":0.7257258892059326},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.6926019787788391},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6718997955322266},{"id":"https://openalex.org/keywords/reciprocal","display_name":"Reciprocal","score":0.6688834428787231},{"id":"https://openalex.org/keywords/single-antenna-interference-cancellation","display_name":"Single antenna interference cancellation","score":0.5792144536972046},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.574368417263031},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.4675309360027313},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.34540820121765137},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3383542001247406},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.336989164352417},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2228662371635437},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.21504423022270203},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.2150326669216156},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.10419073700904846}],"concepts":[{"id":"https://openalex.org/C2775918612","wikidata":"https://www.wikidata.org/wiki/Q994794","display_name":"Noma","level":3,"score":0.816369354724884},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.8028723001480103},{"id":"https://openalex.org/C2780310539","wikidata":"https://www.wikidata.org/wiki/Q12547192","display_name":"Imperfect","level":2,"score":0.7257258892059326},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.6926019787788391},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6718997955322266},{"id":"https://openalex.org/C2777742833","wikidata":"https://www.wikidata.org/wiki/Q1964083","display_name":"Reciprocal","level":2,"score":0.6688834428787231},{"id":"https://openalex.org/C83204339","wikidata":"https://www.wikidata.org/wiki/Q7523915","display_name":"Single antenna interference cancellation","level":3,"score":0.5792144536972046},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.574368417263031},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.4675309360027313},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.34540820121765137},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3383542001247406},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.336989164352417},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2228662371635437},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.21504423022270203},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.2150326669216156},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.10419073700904846},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lwc.2021.3066042","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2021.3066042","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"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 Wireless Communications Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320322025","display_name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico","ror":"https://ror.org/03swz6y49"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W2286275639","https://openalex.org/W2770606349","https://openalex.org/W2797535556","https://openalex.org/W2807553547","https://openalex.org/W2946750314","https://openalex.org/W2958767665","https://openalex.org/W2963336322","https://openalex.org/W2965123227","https://openalex.org/W2989983234","https://openalex.org/W3000346173","https://openalex.org/W3009656397","https://openalex.org/W3099019646"],"related_works":["https://openalex.org/W3039370918","https://openalex.org/W2980162015","https://openalex.org/W4400277783","https://openalex.org/W2769732439","https://openalex.org/W3091696342","https://openalex.org/W2370038111","https://openalex.org/W3039065086","https://openalex.org/W4297882612","https://openalex.org/W3214327504","https://openalex.org/W4235843916"],"abstract_inverted_index":{"In":[0],"this":[1,19],"letter,":[2],"we":[3],"investigate":[4],"the":[5,24,44,95],"impact":[6],"of":[7,61],"non-reciprocities":[8],"in":[9],"cell-free":[10],"massive":[11],"MIMO":[12],"with":[13,55,67],"non-orthogonal":[14],"multiple":[15],"access":[16],"(NOMA).":[17],"To":[18],"end,":[20],"closed-form":[21],"expressions":[22],"for":[23,52,89],"users'":[25],"spectral":[26],"efficiency":[27],"(SE)":[28],"are":[29,50],"derived":[30],"assuming":[31],"pilot":[32],"contamination,":[33],"imperfect":[34,77],"successive":[35],"interference":[36],"cancellation":[37],"(SIC),":[38],"and":[39,76],"non-reciprocal":[40],"channels.":[41],"Based":[42],"on":[43],"attained":[45],"expressions,":[46],"illustrative":[47],"numerical":[48],"examples":[49],"plotted":[51],"a":[53,84],"scenario":[54],"100":[56],"APs":[57],"covering":[58],"an":[59],"area":[60],"1":[62],"km":[63],"<sup":[64],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[65],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">2</sup>":[66],"20":[68],"users.":[69],"Our":[70],"results":[71],"show":[72],"that":[73],"under":[74],"mismatches":[75],"SIC,":[78],"NOMA":[79],"still":[80],"outperforms":[81],"OMA,":[82],"providing":[83],"good":[85],"SE":[86],"gain,":[87],"especially":[88],"40%":[90],"worst":[91],"likely":[92],"users,":[93],"increasing":[94],"user":[96],"fairness.":[97]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":6},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":6}],"updated_date":"2026-03-27T14:29:43.386196","created_date":"2025-10-10T00:00:00"}
