{"id":"https://openalex.org/W3115949285","doi":"https://doi.org/10.1109/wcsp49889.2020.9299874","title":"Design of Improper Constellations for Optimal Data Rates in Downlink NOMA Systems","display_name":"Design of Improper Constellations for Optimal Data Rates in Downlink NOMA Systems","publication_year":2020,"publication_date":"2020-10-21","ids":{"openalex":"https://openalex.org/W3115949285","doi":"https://doi.org/10.1109/wcsp49889.2020.9299874","mag":"3115949285"},"language":"en","primary_location":{"id":"doi:10.1109/wcsp49889.2020.9299874","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcsp49889.2020.9299874","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2020 International Conference on Wireless Communications and Signal Processing (WCSP)","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/A5101454918","display_name":"Hao Cheng","orcid":"https://orcid.org/0000-0002-2282-3062"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Hao Cheng","raw_affiliation_strings":["National Mobile Communications Research Laboratory, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"National Mobile Communications Research Laboratory, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005242197","display_name":"Yili Xia","orcid":"https://orcid.org/0000-0002-4402-8131"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yili Xia","raw_affiliation_strings":["National Mobile Communications Research Laboratory, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"National Mobile Communications Research Laboratory, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103201862","display_name":"Zhaohua Lu","orcid":"https://orcid.org/0000-0002-2918-6692"},"institutions":[{"id":"https://openalex.org/I4210098582","display_name":"ZTE (China)","ror":"https://ror.org/00rjhhq63","country_code":"CN","type":"company","lineage":["https://openalex.org/I4210098582"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhaohua Lu","raw_affiliation_strings":["Zhongxing Telecom Equipment, Shenzhen, China"],"affiliations":[{"raw_affiliation_string":"Zhongxing Telecom Equipment, Shenzhen, China","institution_ids":["https://openalex.org/I4210098582"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056225611","display_name":"Yongming Huang","orcid":"https://orcid.org/0009-0009-2545-2875"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yongming Huang","raw_affiliation_strings":["National Mobile Communications Research Laboratory, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"National Mobile Communications Research Laboratory, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101830725","display_name":"Wenjiang Pei","orcid":"https://orcid.org/0000-0002-0776-4607"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wenjiang Pei","raw_affiliation_strings":["National Mobile Communications Research Laboratory, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"National Mobile Communications Research Laboratory, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045457613","display_name":"L\u00fcxi Yang","orcid":"https://orcid.org/0000-0003-1474-1806"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Luxi Yang","raw_affiliation_strings":["National Mobile Communications Research Laboratory, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"National Mobile Communications Research Laboratory, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5103001848","display_name":"Danilo P. Mandic","orcid":"https://orcid.org/0000-0001-8432-3963"},"institutions":[{"id":"https://openalex.org/I47508984","display_name":"Imperial College London","ror":"https://ror.org/041kmwe10","country_code":"GB","type":"education","lineage":["https://openalex.org/I47508984"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Danilo P. Mandic","raw_affiliation_strings":["Imperial College London, London, UK"],"affiliations":[{"raw_affiliation_string":"Imperial College London, London, UK","institution_ids":["https://openalex.org/I47508984"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5101454918"],"corresponding_institution_ids":["https://openalex.org/I76569877"],"apc_list":null,"apc_paid":null,"fwci":0.1027,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.45552784,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":95},"biblio":{"volume":null,"issue":null,"first_page":"436","last_page":"441"},"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":0.9789999723434448,"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":0.9749000072479248,"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":0.9114549160003662},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7093037366867065},{"id":"https://openalex.org/keywords/constellation","display_name":"Constellation","score":0.7024222016334534},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.6489477157592773},{"id":"https://openalex.org/keywords/single-antenna-interference-cancellation","display_name":"Single antenna interference cancellation","score":0.583320140838623},{"id":"https://openalex.org/keywords/noma","display_name":"Noma","score":0.5721275806427002},{"id":"https://openalex.org/keywords/imperfect","display_name":"Imperfect","score":0.5663321614265442},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.5374612808227539},{"id":"https://openalex.org/keywords/signal-to-noise-ratio","display_name":"Signal-to-noise ratio (imaging)","score":0.4658060669898987},{"id":"https://openalex.org/keywords/constraint","display_name":"Constraint (computer-aided design)","score":0.46543848514556885},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.4543555974960327},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.3845229744911194},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3231264352798462},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.3219430446624756},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.259219229221344},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.23283454775810242},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.22210362553596497}],"concepts":[{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.9114549160003662},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7093037366867065},{"id":"https://openalex.org/C70352696","wikidata":"https://www.wikidata.org/wiki/Q8928","display_name":"Constellation","level":2,"score":0.7024222016334534},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.6489477157592773},{"id":"https://openalex.org/C83204339","wikidata":"https://www.wikidata.org/wiki/Q7523915","display_name":"Single antenna interference cancellation","level":3,"score":0.583320140838623},{"id":"https://openalex.org/C2775918612","wikidata":"https://www.wikidata.org/wiki/Q994794","display_name":"Noma","level":3,"score":0.5721275806427002},{"id":"https://openalex.org/C2780310539","wikidata":"https://www.wikidata.org/wiki/Q12547192","display_name":"Imperfect","level":2,"score":0.5663321614265442},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.5374612808227539},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.4658060669898987},{"id":"https://openalex.org/C2776036281","wikidata":"https://www.wikidata.org/wiki/Q48769818","display_name":"Constraint (computer-aided design)","level":2,"score":0.46543848514556885},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4543555974960327},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.3845229744911194},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3231264352798462},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3219430446624756},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.259219229221344},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.23283454775810242},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.22210362553596497},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"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},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/wcsp49889.2020.9299874","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcsp49889.2020.9299874","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2020 International Conference on Wireless Communications and Signal Processing (WCSP)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"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":21,"referenced_works":["https://openalex.org/W142384176","https://openalex.org/W639989723","https://openalex.org/W2001373854","https://openalex.org/W2062610219","https://openalex.org/W2098918476","https://openalex.org/W2114632138","https://openalex.org/W2124338065","https://openalex.org/W2152819669","https://openalex.org/W2474841522","https://openalex.org/W2476841360","https://openalex.org/W2770517446","https://openalex.org/W2783165102","https://openalex.org/W2900275378","https://openalex.org/W2912839829","https://openalex.org/W2918594466","https://openalex.org/W2946391868","https://openalex.org/W2963336322","https://openalex.org/W2971619569","https://openalex.org/W2985535277","https://openalex.org/W4211251910","https://openalex.org/W4250589301"],"related_works":["https://openalex.org/W3039370918","https://openalex.org/W2980162015","https://openalex.org/W2769732439","https://openalex.org/W4400277783","https://openalex.org/W4297882612","https://openalex.org/W3091696342","https://openalex.org/W2370038111","https://openalex.org/W3039065086","https://openalex.org/W3214327504","https://openalex.org/W4235843916"],"abstract_inverted_index":{"This":[0],"paper":[1],"addresses":[2],"the":[3,8,17,37,53,63,71,75,93,97,101,108,113,130,134,142,147,154,159],"achievable":[4,94],"rate":[5,50,95],"improvement":[6],"for":[7,123,146],"downlink":[9,155],"two-user":[10],"non-orthogonal":[11],"multiple":[12],"access":[13],"(NOMA)":[14],"system,":[15],"in":[16,68],"context":[18],"of":[19,27,70,74,96,112,133],"imperfect":[20,83],"successive":[21],"interference":[22,80],"cancellation":[23],"(SIC),":[24],"by":[25],"means":[26],"improper":[28,58,76,149],"signaling":[29,59],"techniques.":[30],"We":[31,85],"investigate":[32],"a":[33,43,48,89],"basic":[34],"scenario":[35],"where":[36],"strong":[38,98],"user":[39,55,99,103],"transmits":[40],"data":[41,64,124],"from":[42],"proper":[44],"constellation,":[45,77],"subject":[46],"to":[47,82,140],"minimum":[49],"constraint,":[51],"while":[52,100],"weak":[54,102,135],"adopts":[56],"an":[57],"scheme.":[60],"For":[61],"rigor,":[62],"rates":[65,125],"are":[66,126],"formulated":[67],"terms":[69],"circularity":[72,144],"coefficient":[73,145],"under":[78],"residual":[79],"due":[81],"SIC.":[84],"find":[86,141],"that":[87],"such":[88],"scheme":[90],"always":[91],"increases":[92],"may":[104],"also":[105],"benefit":[106],"when":[107],"channel-to-noise":[109],"ratios":[110],"(CNRs)":[111],"two":[114],"users":[115],"satisfy":[116],"certain":[117],"mild":[118],"conditions.":[119],"Moreover,":[120],"analytical":[121],"expressions":[122],"provided":[127],"based":[128],"on":[129,153],"power":[131],"budget":[132],"user,":[136],"which":[137],"allows":[138],"us":[139],"optimal":[143],"best":[148],"constellation":[150],"mapping.":[151],"Simulations":[152],"NOMA":[156],"system":[157],"support":[158],"analysis.":[160]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}