{"id":"https://openalex.org/W2804668891","doi":"https://doi.org/10.1631/fitee.1700842","title":"Enhanced uplink non-orthogonal multiple access for 5G and beyond systems","display_name":"Enhanced uplink non-orthogonal multiple access for 5G and beyond systems","publication_year":2018,"publication_date":"2018-03-01","ids":{"openalex":"https://openalex.org/W2804668891","doi":"https://doi.org/10.1631/fitee.1700842","mag":"2804668891"},"language":"en","primary_location":{"id":"doi:10.1631/fitee.1700842","doi":"https://doi.org/10.1631/fitee.1700842","is_oa":false,"landing_page_url":"https://doi.org/10.1631/fitee.1700842","pdf_url":null,"source":{"id":"https://openalex.org/S4210189857","display_name":"Frontiers of Information Technology & Electronic Engineering","issn_l":"2095-9184","issn":["2095-9184","2095-9230"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["ccf-c","cwts-core","dongbi-c","jufo-1","norway-1","poland-40","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Frontiers of Information Technology & Electronic Engineering","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"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/A5100750055","display_name":"Wenjia Liu","orcid":"https://orcid.org/0000-0002-9678-5345","observed_orcids":["https://orcid.org/0000-0002-9678-5345","https://orcid.org/0009-0009-5958-1085"]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Wen-jia Liu","raw_affiliation_strings":["DOCOMO Beijing Communications Laboratories Co., Ltd., Beijing, 100190, China"],"raw_orcid":"https://orcid.org/0000-0002-9678-5345","affiliations":[{"raw_affiliation_string":"DOCOMO Beijing Communications Laboratories Co., Ltd., Beijing, 100190, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025035342","display_name":"Xiaolin Hou","orcid":"https://orcid.org/0000-0003-3082-5858","observed_orcids":["https://orcid.org/0000-0003-3082-5858"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Xiao-lin Hou","raw_affiliation_strings":["DOCOMO Beijing Communications Laboratories Co., Ltd., Beijing, 100190, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"DOCOMO Beijing Communications Laboratories Co., Ltd., Beijing, 100190, China","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5053383072","display_name":"Lan Chen","orcid":"https://orcid.org/0000-0002-7243-5244","observed_orcids":["https://orcid.org/0000-0002-7243-5244","https://orcid.org/0000-0001-5740-2869"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Lan Chen","raw_affiliation_strings":["DOCOMO Beijing Communications Laboratories Co., Ltd., Beijing, 100190, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"DOCOMO Beijing Communications Laboratories Co., Ltd., Beijing, 100190, China","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5100750055"],"corresponding_institution_ids":[],"apc_list":{"value":2390,"currency":"USD","value_usd":2390},"apc_paid":null,"fwci":0.7609,"has_fulltext":false,"cited_by_count":21,"citation_normalized_percentile":{"value":0.68113006,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":98},"biblio":{"volume":"19","issue":"3","first_page":"340","last_page":"356"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.7045999765396118,"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":0.7045999765396118,"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":0.17080000042915344,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.010400000028312206,"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/5g","display_name":"5G","score":0.6069999933242798},{"id":"https://openalex.org/keywords/beyond-5g","display_name":"beyond 5G","score":0.8489999771118164},{"id":"https://openalex.org/keywords/user-clustering","display_name":"user clustering","score":0.7540000081062317},{"id":"https://openalex.org/keywords/successive-interference-cancellation","display_name":"successive interference cancellation","score":0.9750000238418579},{"id":"https://openalex.org/keywords/cross-correlation-function","display_name":"cross correlation function","score":0.7870000004768372},{"id":"https://openalex.org/keywords/inter-group-interference","display_name":"inter-group interference","score":0.6840000152587891},{"id":"https://openalex.org/keywords/massive-connectivity","display_name":"massive connectivity","score":0.6919999718666077},{"id":"https://openalex.org/keywords/block-error-rate","display_name":"block error rate","score":0.7979999780654907},{"id":"https://openalex.org/keywords/collision-probability","display_name":"collision probability","score":0.597000002861023},{"id":"https://openalex.org/keywords/overload","display_name":"overloading","score":0.5879999995231628}],"concepts":[{"id":"https://openalex.org/C2776639698","wikidata":"https://www.wikidata.org/wiki/Q4927140","display_name":"Block Error Rate","level":3,"score":0.8954946994781494},{"id":"https://openalex.org/C2775918612","wikidata":"https://www.wikidata.org/wiki/Q994794","display_name":"Noma","level":3,"score":0.8233693838119507},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.8132070302963257},{"id":"https://openalex.org/C83204339","wikidata":"https://www.wikidata.org/wiki/Q7523915","display_name":"Single antenna interference cancellation","level":3,"score":0.6776446104049683},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6526669859886169},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.5152649879455566},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.47056150436401367},{"id":"https://openalex.org/C2778112365","wikidata":"https://www.wikidata.org/wiki/Q3511065","display_name":"Sequence (biology)","level":2,"score":0.41766297817230225},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.329251229763031},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.259213924407959},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.1973714828491211},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","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}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1631/fitee.1700842","doi":"https://doi.org/10.1631/fitee.1700842","is_oa":false,"landing_page_url":"https://doi.org/10.1631/fitee.1700842","pdf_url":null,"source":{"id":"https://openalex.org/S4210189857","display_name":"Frontiers of Information Technology & Electronic Engineering","issn_l":"2095-9184","issn":["2095-9184","2095-9230"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["ccf-c","cwts-core","dongbi-c","jufo-1","norway-1","poland-40","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Frontiers of Information Technology & Electronic Engineering","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9","score":0.651199996471405}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":35,"referenced_works":["https://openalex.org/W1535687191","https://openalex.org/W1690504809","https://openalex.org/W1922937245","https://openalex.org/W1966208803","https://openalex.org/W1969552822","https://openalex.org/W1980246112","https://openalex.org/W1997834106","https://openalex.org/W2003010976","https://openalex.org/W2008104692","https://openalex.org/W2027563534","https://openalex.org/W2040082383","https://openalex.org/W2042519026","https://openalex.org/W2047852075","https://openalex.org/W2051943016","https://openalex.org/W2052190282","https://openalex.org/W2054692642","https://openalex.org/W2109672127","https://openalex.org/W2117890770","https://openalex.org/W2134233838","https://openalex.org/W2138548210","https://openalex.org/W2156021085","https://openalex.org/W2166529894","https://openalex.org/W2167969640","https://openalex.org/W2464137485","https://openalex.org/W2500307208","https://openalex.org/W2509696551","https://openalex.org/W2522847968","https://openalex.org/W2592086656","https://openalex.org/W2621874875","https://openalex.org/W2626422957","https://openalex.org/W2626444157","https://openalex.org/W2724143417","https://openalex.org/W2768812360","https://openalex.org/W2769200809","https://openalex.org/W2770454552"],"related_works":["https://openalex.org/W2295921202","https://openalex.org/W1997958020","https://openalex.org/W1645066837","https://openalex.org/W2337522784","https://openalex.org/W4311453709","https://openalex.org/W2912693210","https://openalex.org/W2938701386","https://openalex.org/W2989891103","https://openalex.org/W4241140011","https://openalex.org/W3088316818"],"abstract_inverted_index":{"Uplink":[0],"non-orthogonal":[1],"multiple":[2,75,184],"access":[3,76,185],"(NOMA)":[4],"is":[5,69,102,123,210,228],"a":[6],"promising":[7],"technique":[8],"to":[9,52,83,125],"meet":[10],"the":[11,14,43,54,74,79,111,118,226,238],"requirements":[12,55],"of":[13,49,56,73,121],"fifth":[15],"generation":[16],"(5G)":[17],"and":[18,30,59,128,140,154,160,182,225,245],"beyond":[19],"systems.":[20],"Various":[21],"NOMA":[22,51,145,149,180,202],"schemes":[23,35,181],"have":[24],"been":[25],"proposed":[26,103,124,239],"in":[27,62,200],"both":[28],"academia":[29],"industry.":[31],"However,":[32],"most":[33],"existing":[34,144,179,201,223],"assume":[36],"equal":[37],"average":[38,66,92],"received":[39,67,93,100,138],"power,":[40],"which":[41],"limits":[42],"performance.":[44],"We":[45],"propose":[46],"three":[47],"enhancements":[48],"uplink":[50],"achieve":[53,219],"massive":[57],"connectivity":[58,244],"high":[60],"reliability":[61],"5G,":[63],"where":[64],"unequal":[65,91],"power":[68],"exploited":[70],"as":[71],"part":[72],"signature.":[77],"First,":[78],"optimal":[80],"sequences":[81,122,218,224],"targeting":[82],"generalized":[84],"Welch-bound":[85],"equality":[86],"(GWBE)":[87],"are":[88],"obtained":[89],"for":[90,104,147,231],"power.":[94],"Then":[95],"user":[96],"grouping":[97,115,142],"with":[98,151,178],"multi-level":[99,137,213],"powers":[101,139],"better":[105],"successive":[106],"interference":[107],"cancellation":[108],"(SIC)":[109],"at":[110,167],"receiver.":[112],"Finally,":[113],"sequence":[114,141,206],"based":[116],"on":[117],"cross-correlation":[119],"properties":[120],"reduce":[126],"inter-":[127],"intra-group":[129],"interference.":[130],"Simulation":[131],"results":[132],"show":[133],"that":[134,237],"by":[135,212],"incorporating":[136],"into":[143],"schemes,":[146],"an":[148,196],"system":[150],"400%":[152],"overloading":[153],"fixed":[155],"signature":[156],"allocation,":[157],"3":[158],"dB":[159,162],"10":[161],"signal-to-noise":[163],"ratio":[164],"(SNR)":[165],"gains":[166],"0.1":[168],"block":[169],"error":[170,197],"rate":[171],"(BLER)":[172],"target":[173,191],"can":[174,192,241],"be":[175,193],"achieved":[176,194],"compared":[177],"orthogonal":[183],"(OMA),":[186],"respectively.":[187],"Besides,":[188],"0.01":[189],"BLER":[190,221,233],"while":[195],"floor":[198],"exists":[199],"schemes.":[203],"Under":[204],"random":[205],"selection,":[207],"collision":[208],"probability":[209],"reduced":[211],"powers.":[214],"In":[215],"addition,":[216],"GWBE":[217],"lower":[220],"than":[222],"gain":[227],"large":[229],"especially":[230],"low":[232],"requirements.":[234],"This":[235],"shows":[236],"scheme":[240],"support":[242],"larger":[243],"higher":[246],"reliability.":[247]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":6},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":5},{"year":2019,"cited_by_count":1}],"updated_date":"2026-11-10T11:39:43.021295","created_date":"2018-06-01T00:00:00"}