{"id":"https://openalex.org/W7116710653","doi":"https://doi.org/10.1109/tcomm.2025.3646868","title":"Hybrid RSMA Systems With Improper Gaussian Signaling Under Imperfect SIC","display_name":"Hybrid RSMA Systems With Improper Gaussian Signaling Under Imperfect SIC","publication_year":2025,"publication_date":"2025-12-22","ids":{"openalex":"https://openalex.org/W7116710653","doi":"https://doi.org/10.1109/tcomm.2025.3646868"},"language":null,"primary_location":{"id":"doi:10.1109/tcomm.2025.3646868","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2025.3646868","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications","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/A5068786185","display_name":"Ding XU","orcid":null},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Ding Xu","raw_affiliation_strings":["Jiangsu Key Laboratory of Wireless Communications, Nanjing University of Posts and Telecommunications, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Jiangsu Key Laboratory of Wireless Communications, Nanjing University of Posts and Telecommunications, Nanjing, China","institution_ids":["https://openalex.org/I41198531"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5107957146","display_name":"Hongbo Zhu","orcid":null},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hongbo Zhu","raw_affiliation_strings":["Jiangsu Key Laboratory of Wireless Communications, Nanjing University of Posts and Telecommunications, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Jiangsu Key Laboratory of Wireless Communications, Nanjing University of Posts and Telecommunications, Nanjing, China","institution_ids":["https://openalex.org/I41198531"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5068786185"],"corresponding_institution_ids":["https://openalex.org/I41198531"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.55805078,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"74","issue":null,"first_page":"2268","last_page":"2283"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9861000180244446,"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":0.9861000180244446,"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":0.0026000000070780516,"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/T12079","display_name":"IoT Networks and Protocols","score":0.0017000000225380063,"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/subcarrier","display_name":"Subcarrier","score":0.734499990940094},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.6014000177383423},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.5634999871253967},{"id":"https://openalex.org/keywords/benchmark","display_name":"Benchmark (surveying)","score":0.5612000226974487},{"id":"https://openalex.org/keywords/coordinate-descent","display_name":"Coordinate descent","score":0.5342000126838684},{"id":"https://openalex.org/keywords/imperfect","display_name":"Imperfect","score":0.4456000030040741},{"id":"https://openalex.org/keywords/single-antenna-interference-cancellation","display_name":"Single antenna interference cancellation","score":0.4323999881744385},{"id":"https://openalex.org/keywords/gaussian","display_name":"Gaussian","score":0.392300009727478},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.3765000104904175}],"concepts":[{"id":"https://openalex.org/C198329298","wikidata":"https://www.wikidata.org/wiki/Q586358","display_name":"Subcarrier","level":4,"score":0.734499990940094},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7167999744415283},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.6014000177383423},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.5634999871253967},{"id":"https://openalex.org/C185798385","wikidata":"https://www.wikidata.org/wiki/Q1161707","display_name":"Benchmark (surveying)","level":2,"score":0.5612000226974487},{"id":"https://openalex.org/C157553263","wikidata":"https://www.wikidata.org/wiki/Q5168004","display_name":"Coordinate descent","level":2,"score":0.5342000126838684},{"id":"https://openalex.org/C2780310539","wikidata":"https://www.wikidata.org/wiki/Q12547192","display_name":"Imperfect","level":2,"score":0.4456000030040741},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.43619999289512634},{"id":"https://openalex.org/C83204339","wikidata":"https://www.wikidata.org/wiki/Q7523915","display_name":"Single antenna interference cancellation","level":3,"score":0.4323999881744385},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4133000075817108},{"id":"https://openalex.org/C163716315","wikidata":"https://www.wikidata.org/wiki/Q901177","display_name":"Gaussian","level":2,"score":0.392300009727478},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.3765000104904175},{"id":"https://openalex.org/C157972887","wikidata":"https://www.wikidata.org/wiki/Q463359","display_name":"Convex optimization","level":3,"score":0.33390000462532043},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.32519999146461487},{"id":"https://openalex.org/C2778915421","wikidata":"https://www.wikidata.org/wiki/Q3643177","display_name":"Performance improvement","level":2,"score":0.3109000027179718},{"id":"https://openalex.org/C61326573","wikidata":"https://www.wikidata.org/wiki/Q1496376","display_name":"Gaussian process","level":3,"score":0.299699991941452},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.28540000319480896},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.28529998660087585},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.2754000127315521},{"id":"https://openalex.org/C101765175","wikidata":"https://www.wikidata.org/wiki/Q577764","display_name":"Communications system","level":2,"score":0.27149999141693115},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.26669999957084656},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.2653000056743622},{"id":"https://openalex.org/C50897621","wikidata":"https://www.wikidata.org/wiki/Q2665508","display_name":"Hybrid system","level":2,"score":0.2551000118255615},{"id":"https://openalex.org/C65422117","wikidata":"https://www.wikidata.org/wiki/Q358527","display_name":"Transmitter power output","level":4,"score":0.25099998712539673},{"id":"https://openalex.org/C557945733","wikidata":"https://www.wikidata.org/wiki/Q389772","display_name":"Data transmission","level":2,"score":0.2502000033855438}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcomm.2025.3646868","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2025.3646868","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1894807043","display_name":null,"funder_award_id":"2024IT033","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G2449939794","display_name":null,"funder_award_id":"62471243","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7290676604","display_name":null,"funder_award_id":"92367302","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":44,"referenced_works":["https://openalex.org/W2787255587","https://openalex.org/W2792981848","https://openalex.org/W2910580756","https://openalex.org/W2912839829","https://openalex.org/W2918594466","https://openalex.org/W2962619892","https://openalex.org/W2964019186","https://openalex.org/W2975013556","https://openalex.org/W2981181432","https://openalex.org/W2989668825","https://openalex.org/W2999690840","https://openalex.org/W3091752016","https://openalex.org/W3126286658","https://openalex.org/W3156417332","https://openalex.org/W3173963812","https://openalex.org/W3174152832","https://openalex.org/W3185376923","https://openalex.org/W3217310154","https://openalex.org/W4221160108","https://openalex.org/W4226022721","https://openalex.org/W4226247354","https://openalex.org/W4250589301","https://openalex.org/W4308823234","https://openalex.org/W4309183204","https://openalex.org/W4312345855","https://openalex.org/W4312428103","https://openalex.org/W4319302984","https://openalex.org/W4323338525","https://openalex.org/W4382203579","https://openalex.org/W4386282418","https://openalex.org/W4387415183","https://openalex.org/W4387587664","https://openalex.org/W4394627473","https://openalex.org/W4396594850","https://openalex.org/W4400188450","https://openalex.org/W4400276220","https://openalex.org/W4400276654","https://openalex.org/W4401808469","https://openalex.org/W4402981213","https://openalex.org/W4403420285","https://openalex.org/W4403636076","https://openalex.org/W4403826647","https://openalex.org/W4404179933","https://openalex.org/W4405755304"],"related_works":[],"abstract_inverted_index":{"Rate-splitting":[0],"multiple":[1,23],"access":[2],"(RSMA)":[3],"is":[4,169,198],"a":[5,98,174,195],"promising":[6],"non-orthogonal":[7],"transmission":[8],"scheme":[9],"capable":[10],"of":[11,28,82,124,143,214],"achieving":[12],"higher":[13],"data":[14],"rates":[15],"with":[16,104,180,219],"massive":[17],"connectivity":[18],"compared":[19,226],"to":[20,41,70,85,115,133,184,200,227],"conventional":[21],"orthogonal":[22,62],"access.":[24],"However,":[25,74],"the":[26,80,122,127,145,161,165,212,215,232],"effectiveness":[27,213],"RSMA":[29,54,102,117,218],"can":[30],"be":[31],"significantly":[32],"hindered":[33],"by":[34,138],"imperfect":[35,90,107,139],"successive":[36,181],"interference":[37,43,72,88,136],"cancellation":[38],"(SIC),":[39],"leading":[40],"severe":[42],"and":[44,60,154,191,204],"rate":[45,150,163,167],"degradation.":[46],"Existing":[47],"research":[48],"has":[49,78],"either":[50],"focused":[51],"on":[52],"hybrid":[53,101,217],"systems,":[55],"where":[56,109],"users":[57,110],"are":[58,111],"grouped":[59,112],"assigned":[61],"resources,":[63],"or":[64],"incorporated":[65],"improper":[66],"Gaussian":[67],"signaling":[68],"(IGS)":[69],"enhance":[71],"management.":[73],"no":[75],"prior":[76],"work":[77],"explored":[79],"combination":[81],"these":[83],"approaches":[84],"flexibly":[86],"manage":[87],"under":[89,106,164],"SIC.":[91,140],"To":[92],"address":[93],"this":[94],"gap,":[95],"we":[96,120],"propose":[97],"novel":[99],"downlink":[100],"system":[103],"IGS":[105,125,155,220],"SIC,":[108],"into":[113],"pairs":[114],"form":[116],"groups.":[118],"Specifically,":[119],"introduce":[121],"use":[123],"for":[126],"common":[128],"message":[129],"within":[130],"each":[131],"group":[132],"effectively":[134],"mitigate":[135],"caused":[137],"The":[141],"problem":[142],"optimizing":[144],"user":[146,189,202],"grouping,":[147],"subcarrier":[148,192,205],"allocation,":[149,151],"power":[152],"allocation":[153,206],"circularity":[156],"coefficient,":[157],"aimed":[158],"at":[159],"maximizing":[160],"sum":[162],"minimum":[166],"requirement,":[168],"investigated.":[170],"We":[171],"first":[172],"develop":[173],"block":[175],"coordinate":[176],"descent":[177],"method":[178],"combined":[179],"convex":[182],"approximation":[183],"optimize":[185],"all":[186],"variables":[187],"except":[188],"grouping":[190,203],"allocation.":[193],"Subsequently,":[194],"swapping-based":[196],"algorithm":[197],"proposed":[199,216],"refine":[201],"iteratively.":[207],"Extensive":[208],"simulation":[209],"results":[210],"validate":[211],"scheme,":[221],"demonstrating":[222],"its":[223],"superior":[224],"performance":[225],"various":[228],"benchmark":[229],"schemes":[230],"in":[231],"literature.":[233]},"counts_by_year":[],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-12-22T00:00:00"}