{"id":"https://openalex.org/W3161935074","doi":"https://doi.org/10.1109/wcncw49093.2021.9420033","title":"Sum Spectral Efficiency Optimization for Rate Splitting in Downlink MU-MISO: A Generalized Power Iteration Approach","display_name":"Sum Spectral Efficiency Optimization for Rate Splitting in Downlink MU-MISO: A Generalized Power Iteration Approach","publication_year":2021,"publication_date":"2021-03-29","ids":{"openalex":"https://openalex.org/W3161935074","doi":"https://doi.org/10.1109/wcncw49093.2021.9420033","mag":"3161935074"},"language":"en","primary_location":{"id":"doi:10.1109/wcncw49093.2021.9420033","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcncw49093.2021.9420033","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","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/A5080663906","display_name":"Jeonghun Park","orcid":"https://orcid.org/0000-0003-0789-8012"},"institutions":[{"id":"https://openalex.org/I31419693","display_name":"Kyungpook National University","ror":"https://ror.org/040c17130","country_code":"KR","type":"education","lineage":["https://openalex.org/I31419693"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jeonghun Park","raw_affiliation_strings":["School of Electronics Engineering, Kyungpook National University, South Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronics Engineering, Kyungpook National University, South Korea","institution_ids":["https://openalex.org/I31419693"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5059421639","display_name":"Jinseok Choi","orcid":"https://orcid.org/0000-0002-2619-6078"},"institutions":[{"id":"https://openalex.org/I48566637","display_name":"Ulsan National Institute of Science and Technology","ror":"https://ror.org/017cjz748","country_code":"KR","type":"education","lineage":["https://openalex.org/I48566637"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jinseok Choi","raw_affiliation_strings":["Ulsan National Institute of Science and Technology, South Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Ulsan National Institute of Science and Technology, South Korea","institution_ids":["https://openalex.org/I48566637"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5014076559","display_name":"Namyoon Lee","orcid":"https://orcid.org/0000-0003-4321-4108"},"institutions":[{"id":"https://openalex.org/I123900574","display_name":"Pohang University of Science and Technology","ror":"https://ror.org/04xysgw12","country_code":"KR","type":"education","lineage":["https://openalex.org/I123900574"]},{"id":"https://openalex.org/I2799891827","display_name":"Korea Post","ror":"https://ror.org/00p45d091","country_code":"KR","type":"government","lineage":["https://openalex.org/I2799891827","https://openalex.org/I2801339556","https://openalex.org/I4387152098"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Namyoon Lee","raw_affiliation_strings":["POSTECH, South Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"POSTECH, South Korea","institution_ids":["https://openalex.org/I2799891827","https://openalex.org/I123900574"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5009725517","display_name":"Wonjae Shin","orcid":"https://orcid.org/0000-0001-6513-1237"},"institutions":[{"id":"https://openalex.org/I4921948","display_name":"Pusan National University","ror":"https://ror.org/01an57a31","country_code":"KR","type":"education","lineage":["https://openalex.org/I4921948"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Wonjae Shin","raw_affiliation_strings":["Pusan National University, South Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Pusan National University, South Korea","institution_ids":["https://openalex.org/I4921948"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5042307561","display_name":"H. Vincent Poor","orcid":"https://orcid.org/0000-0002-2062-131X"},"institutions":[{"id":"https://openalex.org/I20089843","display_name":"Princeton University","ror":"https://ror.org/00hx57361","country_code":"US","type":"education","lineage":["https://openalex.org/I20089843"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"H. Vincent Poor","raw_affiliation_strings":["Princeton University, Princeton, NJ, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Princeton University, Princeton, NJ, USA","institution_ids":["https://openalex.org/I20089843"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.7119,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.69300643,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":96,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","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/T10148","display_name":"Advanced MIMO Systems Optimization","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/T11409","display_name":"Advanced Wireless Network 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"}},{"id":"https://openalex.org/T11392","display_name":"Energy Harvesting in Wireless Networks","score":0.9991000294685364,"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/rayleigh-quotient","display_name":"Rayleigh quotient","score":0.7091955542564392},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.6591058969497681},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6376938223838806},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.5638926029205322},{"id":"https://openalex.org/keywords/eigenvalues-and-eigenvectors","display_name":"Eigenvalues and eigenvectors","score":0.5452079176902771},{"id":"https://openalex.org/keywords/convexity","display_name":"Convexity","score":0.5417512059211731},{"id":"https://openalex.org/keywords/power-iteration","display_name":"Power iteration","score":0.5203361511230469},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.5010085105895996},{"id":"https://openalex.org/keywords/maximization","display_name":"Maximization","score":0.4889582395553589},{"id":"https://openalex.org/keywords/rayleigh-quotient-iteration","display_name":"Rayleigh quotient iteration","score":0.4689452350139618},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.4648778438568115},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.46162301301956177},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.45308342576026917},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.4481656551361084},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.4461442828178406},{"id":"https://openalex.org/keywords/smoothness","display_name":"Smoothness","score":0.43550199270248413},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3952825963497162},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.38060224056243896},{"id":"https://openalex.org/keywords/iterative-method","display_name":"Iterative method","score":0.3727062940597534},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.20530879497528076},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.11131298542022705}],"concepts":[{"id":"https://openalex.org/C2778158742","wikidata":"https://www.wikidata.org/wiki/Q1665115","display_name":"Rayleigh quotient","level":3,"score":0.7091955542564392},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.6591058969497681},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6376938223838806},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.5638926029205322},{"id":"https://openalex.org/C158693339","wikidata":"https://www.wikidata.org/wiki/Q190524","display_name":"Eigenvalues and eigenvectors","level":2,"score":0.5452079176902771},{"id":"https://openalex.org/C72134830","wikidata":"https://www.wikidata.org/wiki/Q5166524","display_name":"Convexity","level":2,"score":0.5417512059211731},{"id":"https://openalex.org/C162443888","wikidata":"https://www.wikidata.org/wiki/Q1426504","display_name":"Power iteration","level":3,"score":0.5203361511230469},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5010085105895996},{"id":"https://openalex.org/C2776330181","wikidata":"https://www.wikidata.org/wiki/Q18358244","display_name":"Maximization","level":2,"score":0.4889582395553589},{"id":"https://openalex.org/C117586675","wikidata":"https://www.wikidata.org/wiki/Q7298489","display_name":"Rayleigh quotient iteration","level":4,"score":0.4689452350139618},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.4648778438568115},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.46162301301956177},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.45308342576026917},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.4481656551361084},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.4461442828178406},{"id":"https://openalex.org/C102634674","wikidata":"https://www.wikidata.org/wiki/Q868473","display_name":"Smoothness","level":2,"score":0.43550199270248413},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3952825963497162},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.38060224056243896},{"id":"https://openalex.org/C159694833","wikidata":"https://www.wikidata.org/wiki/Q2321565","display_name":"Iterative method","level":2,"score":0.3727062940597534},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.20530879497528076},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.11131298542022705},{"id":"https://openalex.org/C106159729","wikidata":"https://www.wikidata.org/wiki/Q2294553","display_name":"Financial economics","level":1,"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/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/wcncw49093.2021.9420033","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcncw49093.2021.9420033","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","raw_type":"proceedings-article"},{"id":"pmh:oai:oasis.postech.ac.kr:2014.oak/109464","is_oa":false,"landing_page_url":"https://oasis.postech.ac.kr/handle/2014.oak/109464","pdf_url":null,"source":{"id":"https://openalex.org/S4306401965","display_name":"Open Access System for Information Sharing (Pohang University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I123900574","host_organization_name":"Pohang University of Science and Technology","host_organization_lineage":["https://openalex.org/I123900574"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Conference"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.49000000953674316}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W2015301486","https://openalex.org/W2074120933","https://openalex.org/W2108897727","https://openalex.org/W2125607229","https://openalex.org/W2157989362","https://openalex.org/W2163762663","https://openalex.org/W2271871887","https://openalex.org/W2276996242","https://openalex.org/W2288501207","https://openalex.org/W2310675558","https://openalex.org/W2889864884","https://openalex.org/W2963328334","https://openalex.org/W2974939732","https://openalex.org/W3036383181","https://openalex.org/W3047417371","https://openalex.org/W3105238962","https://openalex.org/W3105516132"],"related_works":["https://openalex.org/W2059067170","https://openalex.org/W4297437581","https://openalex.org/W2060647548","https://openalex.org/W4388185085","https://openalex.org/W2573613752","https://openalex.org/W4323927193","https://openalex.org/W2049348317","https://openalex.org/W2543568125","https://openalex.org/W2033209890","https://openalex.org/W1519422840"],"abstract_inverted_index":{"In":[0],"this":[1,63,135],"paper,":[2],"we":[3,65,95,137],"consider":[4],"a":[5,12,26,48,52,74,82,115,123,130,143,150],"downlink":[6],"multiple-input":[7],"multiple-output":[8],"(MIMO)":[9],"system,":[10],"where":[11],"rate":[13,155],"splitting":[14],"approach":[15],"is":[16,41,51,108,126],"applied":[17],"to":[18,34,128,148],"serve":[19],"multiple":[20],"users":[21],"more":[22],"efficiently.":[23],"We":[24],"formulate":[25],"sum":[27],"spectral":[28],"efficiency":[29],"maximization":[30],"problem":[31,80,119],"with":[32],"respect":[33],"precoders":[35],"when":[36,168],"noisy":[37],"channel":[38,91,169],"state":[39],"information":[40],"available":[42],"at":[43],"the":[44,68,79,85,97,105,161,165],"transmitter.":[45],"Finding":[46],"even":[47],"suboptimal":[49],"solution":[50],"very":[53],"challenging":[54],"task":[55],"by":[56,72,142],"its":[57],"non-convexity":[58],"and":[59,77],"non-smoothness.":[60],"To":[61,134],"resolve":[62],"challenge,":[64],"first":[66],"approximate":[67],"non-smooth":[69],"minimum":[70],"function":[71],"using":[73],"LogSumExp":[75],"technique,":[76],"reformulate":[78],"as":[81,114,149],"form":[83],"of":[84,87,104],"product":[86],"Rayleigh":[88],"quotients,":[89],"considering":[90],"estimation":[92],"error.":[93],"Then":[94],"derive":[96],"first-order":[98],"optimality":[99],"condition.":[100],"A":[101],"key":[102],"observation":[103],"obtained":[106],"condition":[107],"that":[109,121,160],"it":[110],"can":[111],"be":[112],"cast":[113],"nonlinear":[116],"eigenvector-dependent":[117],"eigenvalue":[118],"so":[120],"finding":[122,129],"leading":[124],"eigenvector":[125],"equivalent":[127],"local":[131],"optimal":[132],"solution.":[133],"end,":[136],"propose":[138],"an":[139],"algorithm":[140],"inspired":[141],"power":[144,152],"iteration":[145,153],"method,":[146],"referred":[147],"generalized":[151],"for":[154],"splitting.":[156],"Simulation":[157],"results":[158],"show":[159],"proposed":[162],"method":[163],"enhances":[164],"achievable":[166],"performance":[167],"acquisition":[170],"error":[171],"exists.":[172]},"counts_by_year":[{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":3}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}