{"id":"https://openalex.org/W4386242017","doi":"https://doi.org/10.1109/lcomm.2023.3309818","title":"Cooperative Rate-Splitting Multiple Access in Heterogeneous Networks","display_name":"Cooperative Rate-Splitting Multiple Access in Heterogeneous Networks","publication_year":2023,"publication_date":"2023-08-29","ids":{"openalex":"https://openalex.org/W4386242017","doi":"https://doi.org/10.1109/lcomm.2023.3309818"},"language":"en","primary_location":{"id":"doi:10.1109/lcomm.2023.3309818","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2023.3309818","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"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 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/A5051947340","display_name":"Chani Kong","orcid":"https://orcid.org/0009-0003-3375-6453"},"institutions":[{"id":"https://openalex.org/I126520041","display_name":"University of Science and Technology of China","ror":"https://ror.org/04c4dkn09","country_code":"CN","type":"education","lineage":["https://openalex.org/I126520041","https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Chani Kong","raw_affiliation_strings":["CAS Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China, Hefei, China"],"raw_orcid":"https://orcid.org/0009-0003-3375-6453","affiliations":[{"raw_affiliation_string":"CAS Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China, Hefei, China","institution_ids":["https://openalex.org/I126520041"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5056273339","display_name":"Hancheng Lu","orcid":"https://orcid.org/0000-0001-8302-4996"},"institutions":[{"id":"https://openalex.org/I126520041","display_name":"University of Science and Technology of China","ror":"https://ror.org/04c4dkn09","country_code":"CN","type":"education","lineage":["https://openalex.org/I126520041","https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hancheng Lu","raw_affiliation_strings":["CAS Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China, Hefei, China"],"raw_orcid":"https://orcid.org/0000-0001-8302-4996","affiliations":[{"raw_affiliation_string":"CAS Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China, Hefei, China","institution_ids":["https://openalex.org/I126520041"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5051947340"],"corresponding_institution_ids":["https://openalex.org/I126520041"],"apc_list":null,"apc_paid":null,"fwci":1.6608,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.84078631,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":98,"max":99},"biblio":{"volume":"27","issue":"10","first_page":"2807","last_page":"2811"},"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/T10964","display_name":"Wireless Communication Security Techniques","score":0.9995999932289124,"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":0.9991999864578247,"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/computer-science","display_name":"Computer science","score":0.7566637992858887},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.7063532471656799},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.5407699346542358},{"id":"https://openalex.org/keywords/relay","display_name":"Relay","score":0.5154476761817932},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.5147016644477844},{"id":"https://openalex.org/keywords/heterogeneous-network","display_name":"Heterogeneous network","score":0.4714796543121338},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.4579535722732544},{"id":"https://openalex.org/keywords/resource-allocation","display_name":"Resource allocation","score":0.4402920603752136},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.43473994731903076},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.42641234397888184},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.4168854355812073},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.4137043058872223},{"id":"https://openalex.org/keywords/wireless-network","display_name":"Wireless network","score":0.4072977304458618},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.2749086022377014},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.14074960350990295},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.07584303617477417}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7566637992858887},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7063532471656799},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.5407699346542358},{"id":"https://openalex.org/C2778156585","wikidata":"https://www.wikidata.org/wiki/Q174053","display_name":"Relay","level":3,"score":0.5154476761817932},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.5147016644477844},{"id":"https://openalex.org/C158207573","wikidata":"https://www.wikidata.org/wiki/Q5747224","display_name":"Heterogeneous network","level":4,"score":0.4714796543121338},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4579535722732544},{"id":"https://openalex.org/C29202148","wikidata":"https://www.wikidata.org/wiki/Q287260","display_name":"Resource allocation","level":2,"score":0.4402920603752136},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.43473994731903076},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.42641234397888184},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.4168854355812073},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.4137043058872223},{"id":"https://openalex.org/C108037233","wikidata":"https://www.wikidata.org/wiki/Q11375","display_name":"Wireless network","level":3,"score":0.4072977304458618},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2749086022377014},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.14074960350990295},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.07584303617477417},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lcomm.2023.3309818","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2023.3309818","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"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 Communications Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/17","score":0.4699999988079071,"display_name":"Partnerships for the goals"}],"awards":[{"id":"https://openalex.org/G2919620667","display_name":null,"funder_award_id":"U21A20452","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G4198966207","display_name":null,"funder_award_id":"U19B2044","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":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W1923185876","https://openalex.org/W2031322911","https://openalex.org/W2126137945","https://openalex.org/W2787255587","https://openalex.org/W2901382282","https://openalex.org/W3023862498","https://openalex.org/W3098923418","https://openalex.org/W3099803135","https://openalex.org/W3154074599","https://openalex.org/W3168625149","https://openalex.org/W3173963812","https://openalex.org/W3177793363","https://openalex.org/W4308823234"],"related_works":["https://openalex.org/W2962922943","https://openalex.org/W2038093983","https://openalex.org/W2921549278","https://openalex.org/W3046102531","https://openalex.org/W2601693592","https://openalex.org/W2907156721","https://openalex.org/W3167642505","https://openalex.org/W2805060255","https://openalex.org/W2795085641","https://openalex.org/W2004627384"],"abstract_inverted_index":{"Rate-splitting":[0],"multiple":[1,167],"access":[2],"(RSMA)":[3],"has":[4],"been":[5],"considered":[6],"as":[7,64],"a":[8,51,65,89,120,126],"promising":[9],"technology":[10],"to":[11,68,74,93,133],"improve":[12],"spectral":[13],"efficiency":[14],"of":[15,37,86,99,145,157,164],"wireless":[16],"communication":[17],"systems.":[18],"However,":[19],"in":[20,27,70,88],"heterogeneous":[21],"networks":[22],"(HetNets),":[23],"the":[24,35,38,41,57,60,75,82,95,110,115,142,146],"achievable":[25],"rate":[26,36,98,116,144],"RSMA":[28,53],"is":[29,106,150],"limited":[30],"by":[31],"cross-layer":[32],"interference":[33],"and":[34,114,125,159],"user":[39,58,76],"with":[40,59,77],"worst":[42],"channel":[43,62],"condition.":[44],"To":[45],"address":[46],"this":[47],"issue,":[48],"we":[49],"propose":[50],"cooperative":[52],"(C-RSMA)":[54],"scheme":[55,149],"where":[56],"high-quality":[61],"acts":[63],"full-duplex":[66],"relay":[67],"assist":[69],"transmitting":[71],"common":[72],"stream":[73],"weak":[78],"signals.":[79],"We":[80],"formulate":[81],"resource":[83],"allocation":[84],"problem":[85,105,113],"C-RSMA":[87,148],"two-layer":[90],"HetNet,":[91],"aiming":[92],"maximize":[94],"downlink":[96],"sum":[97,143],"all":[100],"small":[101],"cell":[102],"users.":[103],"The":[104],"firstly":[107],"decoupled":[108],"into":[109],"subchannel":[111],"matching":[112,123],"optimization":[117],"problem.":[118],"Then,":[119],"transfer":[121],"exchange":[122],"algorithm":[124,130],"successive":[127],"convex":[128],"approximation-based":[129],"are":[131],"proposed":[132,147],"solve":[134],"these":[135],"two":[136],"subproblems,":[137],"respectively.":[138],"Simulation":[139],"results":[140],"show":[141],"on":[151],"average":[152],"10.1%":[153],"higher":[154,161],"than":[155,162],"that":[156,163],"RSMA,":[158],"18.0%":[160],"cooperation":[165],"nonorthogonal":[166],"access.":[168]},"counts_by_year":[{"year":2025,"cited_by_count":8},{"year":2024,"cited_by_count":5}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}