{"id":"https://openalex.org/W4312534757","doi":"https://doi.org/10.1109/lcomm.2022.3211292","title":"Reconfigurable Intelligent Surfaces Assisted Hybrid NOMA System","display_name":"Reconfigurable Intelligent Surfaces Assisted Hybrid NOMA System","publication_year":2022,"publication_date":"2022-10-03","ids":{"openalex":"https://openalex.org/W4312534757","doi":"https://doi.org/10.1109/lcomm.2022.3211292"},"language":"en","primary_location":{"id":"doi:10.1109/lcomm.2022.3211292","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2022.3211292","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/A5008272978","display_name":"M. Hemanta Kumar","orcid":"https://orcid.org/0000-0001-9976-186X"},"institutions":[{"id":"https://openalex.org/I56404289","display_name":"Indian Institute of Technology BHU","ror":"https://ror.org/01kh5gc44","country_code":"IN","type":"education","lineage":["https://openalex.org/I56404289"]},{"id":"https://openalex.org/I91357014","display_name":"Banaras Hindu University","ror":"https://ror.org/04cdn2797","country_code":"IN","type":"education","lineage":["https://openalex.org/I91357014"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"M. Hemanta Kumar","raw_affiliation_strings":["Department of Electronics Engineering, IIT (BHU) Varanasi, Varanasi, India"],"affiliations":[{"raw_affiliation_string":"Department of Electronics Engineering, IIT (BHU) Varanasi, Varanasi, India","institution_ids":["https://openalex.org/I56404289","https://openalex.org/I91357014"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005623079","display_name":"Sanjeev Sharma","orcid":"https://orcid.org/0000-0001-7488-1064"},"institutions":[{"id":"https://openalex.org/I56404289","display_name":"Indian Institute of Technology BHU","ror":"https://ror.org/01kh5gc44","country_code":"IN","type":"education","lineage":["https://openalex.org/I56404289"]},{"id":"https://openalex.org/I91357014","display_name":"Banaras Hindu University","ror":"https://ror.org/04cdn2797","country_code":"IN","type":"education","lineage":["https://openalex.org/I91357014"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Sanjeev Sharma","raw_affiliation_strings":["Department of Electronics Engineering, IIT (BHU) Varanasi, Varanasi, India"],"affiliations":[{"raw_affiliation_string":"Department of Electronics Engineering, IIT (BHU) Varanasi, Varanasi, India","institution_ids":["https://openalex.org/I56404289","https://openalex.org/I91357014"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035673068","display_name":"Kuntal Deka","orcid":"https://orcid.org/0000-0002-8782-1682"},"institutions":[{"id":"https://openalex.org/I1317621060","display_name":"Indian Institute of Technology Guwahati","ror":"https://ror.org/0022nd079","country_code":"IN","type":"education","lineage":["https://openalex.org/I1317621060"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Kuntal Deka","raw_affiliation_strings":["Department of Electronics and Electrical Engineering, IIT Guwahati, Guwahati, India"],"affiliations":[{"raw_affiliation_string":"Department of Electronics and Electrical Engineering, IIT Guwahati, Guwahati, India","institution_ids":["https://openalex.org/I1317621060"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5064237154","display_name":"M. Thottappan","orcid":"https://orcid.org/0000-0003-1869-4517"},"institutions":[{"id":"https://openalex.org/I56404289","display_name":"Indian Institute of Technology BHU","ror":"https://ror.org/01kh5gc44","country_code":"IN","type":"education","lineage":["https://openalex.org/I56404289"]},{"id":"https://openalex.org/I91357014","display_name":"Banaras Hindu University","ror":"https://ror.org/04cdn2797","country_code":"IN","type":"education","lineage":["https://openalex.org/I91357014"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"M. Thottappan","raw_affiliation_strings":["Department of Electronics Engineering, IIT (BHU) Varanasi, Varanasi, India"],"affiliations":[{"raw_affiliation_string":"Department of Electronics Engineering, IIT (BHU) Varanasi, Varanasi, India","institution_ids":["https://openalex.org/I56404289","https://openalex.org/I91357014"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5008272978"],"corresponding_institution_ids":["https://openalex.org/I56404289","https://openalex.org/I91357014"],"apc_list":null,"apc_paid":null,"fwci":2.7705,"has_fulltext":false,"cited_by_count":32,"citation_normalized_percentile":{"value":0.90929745,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"27","issue":"1","first_page":"357","last_page":"361"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9998999834060669,"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":0.9998999834060669,"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/T10851","display_name":"Optical Wireless Communication Technologies","score":0.9891999959945679,"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/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9706000089645386,"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":0.8689194321632385},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7217332124710083},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.6581445932388306},{"id":"https://openalex.org/keywords/single-antenna-interference-cancellation","display_name":"Single antenna interference cancellation","score":0.6508132219314575},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.6075199246406555},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.5513144731521606},{"id":"https://openalex.org/keywords/relaxation","display_name":"Relaxation (psychology)","score":0.4247516989707947},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.34695714712142944},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.32401543855667114},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.26254740357398987},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.23640123009681702},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.14013993740081787}],"concepts":[{"id":"https://openalex.org/C2775918612","wikidata":"https://www.wikidata.org/wiki/Q994794","display_name":"Noma","level":3,"score":0.8689194321632385},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7217332124710083},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.6581445932388306},{"id":"https://openalex.org/C83204339","wikidata":"https://www.wikidata.org/wiki/Q7523915","display_name":"Single antenna interference cancellation","level":3,"score":0.6508132219314575},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.6075199246406555},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.5513144731521606},{"id":"https://openalex.org/C2776029896","wikidata":"https://www.wikidata.org/wiki/Q3935810","display_name":"Relaxation (psychology)","level":2,"score":0.4247516989707947},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.34695714712142944},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.32401543855667114},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.26254740357398987},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.23640123009681702},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.14013993740081787},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0},{"id":"https://openalex.org/C77805123","wikidata":"https://www.wikidata.org/wiki/Q161272","display_name":"Social psychology","level":1,"score":0.0},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lcomm.2022.3211292","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2022.3211292","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/7","display_name":"Affordable and clean energy","score":0.8899999856948853}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W1997834106","https://openalex.org/W2167282237","https://openalex.org/W2534815641","https://openalex.org/W2579217754","https://openalex.org/W2582447695","https://openalex.org/W2963336322","https://openalex.org/W2969424089","https://openalex.org/W3037231455","https://openalex.org/W3042544305","https://openalex.org/W3042598716","https://openalex.org/W3081462673","https://openalex.org/W3092562074","https://openalex.org/W3096188699","https://openalex.org/W3103135626","https://openalex.org/W3120094264","https://openalex.org/W3163858617","https://openalex.org/W4236826464"],"related_works":["https://openalex.org/W3039370918","https://openalex.org/W2980162015","https://openalex.org/W2769732439","https://openalex.org/W2370038111","https://openalex.org/W4361208685","https://openalex.org/W4297882612","https://openalex.org/W4235843916","https://openalex.org/W3214327504","https://openalex.org/W4387429616","https://openalex.org/W2293822216"],"abstract_inverted_index":{"In":[0,21,75],"a":[1,23,57],"device-to-device":[2],"communication":[3],"scenario,":[4,24],"the":[5,14,25,37,66,72,82,119,123,145,152],"number":[6],"of":[7,71,91,122],"far":[8],"users":[9,16],"(FUs)":[10],"is":[11,49,84,99,131],"higher":[12],"than":[13,151],"near":[15],"(NUs)":[17],"in":[18],"each":[19],"cluster.":[20],"such":[22],"paired":[26,85],"NUs":[27],"and":[28,36,68,107,113,133,138,158,163],"FUs":[29,39,88],"communicate":[30,40],"through":[31,41],"non-orthogonal":[32],"multiple":[33,43,87],"access":[34],"(NOMA),":[35],"remaining":[38],"orthogonal":[42],"accesses":[44],"(OMA)":[45],"schemes.":[46,140],"This":[47,54],"system":[48,63],"called":[50],"as":[51],"hybrid-NOMA":[52],"(HNOMA).":[53],"letter":[55],"proposes":[56],"reconfigurable":[58],"intelligent":[59],"surface":[60],"(RIS)-assisted":[61],"HNOMA":[62,79,156],"to":[64],"enhance":[65],"energy":[67],"spectral":[69],"efficiencies":[70],"conventional":[73,153],"HNOMA.":[74],"this":[76],"proposed":[77],"RIS-assisted":[78],"(PR-HNOMA)":[80],"system,":[81],"NU":[83],"with":[86,89,135],"allocations":[90],"different":[92,136],"bandwidths.":[93],"The":[94],"PR-HNOMA":[95,124,146],"system\u2019s":[96],"sum":[97,120],"rate":[98,121],"maximized":[100],"by":[101],"considering":[102],"joint":[103],"beamforming":[104],"at":[105],"BS":[106],"RIS":[108,154,159],"via":[109],"semidefinite":[110],"relaxation":[111],"(SDR)":[112],"alternatively":[114],"optimization":[115],"(AO)":[116],"techniques.":[117],"Further,":[118],"under":[125],"imperfect":[126],"successive":[127],"interference":[128],"cancellation":[129],"(ISIC)":[130],"analyzed":[132],"compared":[134],"NOMA":[137,161],"OMA":[139,164],"Simulation":[141],"results":[142],"show":[143],"that":[144],"achieves":[147],"better":[148],"sum-rate":[149],"performance":[150],"assisted":[155,160],"(R-HNOMA),":[157],"(R-CNOMA),":[162],"(R-OMA).":[165]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":11},{"year":2024,"cited_by_count":12},{"year":2023,"cited_by_count":6},{"year":2022,"cited_by_count":1}],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-10-10T00:00:00"}