{"id":"https://openalex.org/W2981614484","doi":"https://doi.org/10.1109/iswcs.2019.8877096","title":"Efficient Algorithms for Sum Rate Maximization in Fronthaul-Constrained C-RANs","display_name":"Efficient Algorithms for Sum Rate Maximization in Fronthaul-Constrained C-RANs","publication_year":2019,"publication_date":"2019-08-01","ids":{"openalex":"https://openalex.org/W2981614484","doi":"https://doi.org/10.1109/iswcs.2019.8877096","mag":"2981614484"},"language":"en","primary_location":{"id":"doi:10.1109/iswcs.2019.8877096","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iswcs.2019.8877096","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2019 16th International Symposium on Wireless Communication Systems (ISWCS)","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://hdl.handle.net/10197/11913","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5000166350","display_name":"Kien-Giang Nguyen","orcid":"https://orcid.org/0000-0002-3663-5011"},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":true,"raw_author_name":"Kien-Giang Nguyen","raw_affiliation_strings":["Centre for Wireless Communications, University of Oulu, Finland"],"affiliations":[{"raw_affiliation_string":"Centre for Wireless Communications, University of Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060107722","display_name":"Quang\u2010Doanh Vu","orcid":"https://orcid.org/0000-0002-9369-4990"},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Quang-Doanh Vu","raw_affiliation_strings":["Centre for Wireless Communications, University of Oulu, Finland"],"affiliations":[{"raw_affiliation_string":"Centre for Wireless Communications, University of Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008843672","display_name":"Le\u2010Nam Tran","orcid":"https://orcid.org/0000-0002-9317-9980"},"institutions":[{"id":"https://openalex.org/I100930933","display_name":"University College Dublin","ror":"https://ror.org/05m7pjf47","country_code":"IE","type":"education","lineage":["https://openalex.org/I100930933"]}],"countries":["IE"],"is_corresponding":false,"raw_author_name":"Le-Nam Tran","raw_affiliation_strings":["School of Electrical and Electronic Engineering, University College, Dublin, Ireland"],"affiliations":[{"raw_affiliation_string":"School of Electrical and Electronic Engineering, University College, Dublin, Ireland","institution_ids":["https://openalex.org/I100930933"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5029534229","display_name":"Markku Juntti","orcid":"https://orcid.org/0000-0002-5413-1896"},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Markku Juntti","raw_affiliation_strings":["Centre for Wireless Communications, University of Oulu, Finland"],"affiliations":[{"raw_affiliation_string":"Centre for Wireless Communications, University of Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5000166350"],"corresponding_institution_ids":["https://openalex.org/I98381234"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.10900506,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"2","issue":null,"first_page":"304","last_page":"308"},"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/T10936","display_name":"Millimeter-Wave Propagation and Modeling","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/T12791","display_name":"Full-Duplex Wireless Communications","score":0.9994999766349792,"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":0.6795933246612549},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.6548056602478027},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.653058648109436},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.6354391574859619},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.6158895492553711},{"id":"https://openalex.org/keywords/focus","display_name":"Focus (optics)","score":0.5238494873046875},{"id":"https://openalex.org/keywords/maximization","display_name":"Maximization","score":0.4760701060295105},{"id":"https://openalex.org/keywords/convex-optimization","display_name":"Convex optimization","score":0.45077961683273315},{"id":"https://openalex.org/keywords/approximation-algorithm","display_name":"Approximation algorithm","score":0.4490351676940918},{"id":"https://openalex.org/keywords/cloud-computing","display_name":"Cloud computing","score":0.42588457465171814},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.4229077100753784},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.41183698177337646},{"id":"https://openalex.org/keywords/regular-polygon","display_name":"Regular polygon","score":0.4072933495044708},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.38555631041526794},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.18951448798179626},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.09126773476600647}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6795933246612549},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.6548056602478027},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.653058648109436},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.6354391574859619},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.6158895492553711},{"id":"https://openalex.org/C192209626","wikidata":"https://www.wikidata.org/wiki/Q190909","display_name":"Focus (optics)","level":2,"score":0.5238494873046875},{"id":"https://openalex.org/C2776330181","wikidata":"https://www.wikidata.org/wiki/Q18358244","display_name":"Maximization","level":2,"score":0.4760701060295105},{"id":"https://openalex.org/C157972887","wikidata":"https://www.wikidata.org/wiki/Q463359","display_name":"Convex optimization","level":3,"score":0.45077961683273315},{"id":"https://openalex.org/C148764684","wikidata":"https://www.wikidata.org/wiki/Q621751","display_name":"Approximation algorithm","level":2,"score":0.4490351676940918},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.42588457465171814},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.4229077100753784},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.41183698177337646},{"id":"https://openalex.org/C112680207","wikidata":"https://www.wikidata.org/wiki/Q714886","display_name":"Regular polygon","level":2,"score":0.4072933495044708},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.38555631041526794},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.18951448798179626},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.09126773476600647},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","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/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/iswcs.2019.8877096","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iswcs.2019.8877096","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2019 16th International Symposium on Wireless Communication Systems (ISWCS)","raw_type":"proceedings-article"},{"id":"pmh:oai:researchrepository.ucd.ie:10197/11913","is_oa":true,"landing_page_url":"http://hdl.handle.net/10197/11913","pdf_url":"http://hdl.handle.net/10197/11913","source":{"id":"https://openalex.org/S4306402280","display_name":"Research Repository UCD (University College Dublin)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I100930933","host_organization_name":"University College Dublin","host_organization_lineage":["https://openalex.org/I100930933"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Conference Publication"},{"id":"pmh:oai:oulu.fi:nbnfi-fe2019121848683","is_oa":false,"landing_page_url":"http://urn.fi/urn:nbn:fi-fe2019121848683","pdf_url":null,"source":{"id":"https://openalex.org/S4306400284","display_name":"University of Oulu Repository (University of Oulu)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I98381234","host_organization_name":"University of Oulu","host_organization_lineage":["https://openalex.org/I98381234"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"pmh:oai:researchrepository.ucd.ie:10197/11913","is_oa":true,"landing_page_url":"http://hdl.handle.net/10197/11913","pdf_url":"http://hdl.handle.net/10197/11913","source":{"id":"https://openalex.org/S4306402280","display_name":"Research Repository UCD (University College Dublin)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I100930933","host_organization_name":"University College Dublin","host_organization_lineage":["https://openalex.org/I100930933"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Conference Publication"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G3359081669","display_name":null,"funder_award_id":"297803","funder_id":"https://openalex.org/F4320321108","funder_display_name":"Academy of Finland"},{"id":"https://openalex.org/G3609107129","display_name":null,"funder_award_id":"Grant","funder_id":"https://openalex.org/F4320321108","funder_display_name":"Academy of Finland"},{"id":"https://openalex.org/G4230935547","display_name":null,"funder_award_id":"318927","funder_id":"https://openalex.org/F4320321108","funder_display_name":"Academy of Finland"},{"id":"https://openalex.org/G6401737180","display_name":null,"funder_award_id":"31089","funder_id":"https://openalex.org/F4320321108","funder_display_name":"Academy of Finland"},{"id":"https://openalex.org/G8362846028","display_name":null,"funder_award_id":"Grant 318927","funder_id":"https://openalex.org/F4320321108","funder_display_name":"Academy of Finland"}],"funders":[{"id":"https://openalex.org/F4320321108","display_name":"Academy of Finland","ror":"https://ror.org/05k73zm37"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2981614484.pdf","grobid_xml":"https://content.openalex.org/works/W2981614484.grobid-xml"},"referenced_works_count":12,"referenced_works":["https://openalex.org/W9274362","https://openalex.org/W1592174611","https://openalex.org/W1969648546","https://openalex.org/W2004101329","https://openalex.org/W2019905317","https://openalex.org/W2064969374","https://openalex.org/W2100573451","https://openalex.org/W2461887739","https://openalex.org/W2777400456","https://openalex.org/W2886786255","https://openalex.org/W2963769561","https://openalex.org/W2963949685"],"related_works":["https://openalex.org/W2548963335","https://openalex.org/W2159941915","https://openalex.org/W1995129237","https://openalex.org/W4388081250","https://openalex.org/W1761601995","https://openalex.org/W2904599916","https://openalex.org/W4321608401","https://openalex.org/W4300468626","https://openalex.org/W4302353319","https://openalex.org/W2761543104"],"abstract_inverted_index":{"We":[0],"consider":[1],"downlink":[2],"transmission":[3],"of":[4,56,114],"a":[5,32,39,43],"fronthaul-constrained":[6],"cloud":[7],"radio":[8],"access":[9],"network.":[10],"Our":[11],"aim":[12],"is":[13,30,50],"to":[14],"maximize":[15],"the":[16,58,70,93,102],"system":[17],"sum":[18],"data":[19],"rate":[20],"via":[21],"jointly":[22],"designing":[23],"beamforming":[24],"and":[25,80,107,117],"user":[26],"association.":[27],"The":[28,48,84],"problem":[29,72],"basically":[31],"mixed":[33],"integer":[34],"non-convex":[35],"programs":[36,75],"for":[37],"which":[38],"global":[40],"solution":[41],"requires":[42],"prohibitively":[44],"high":[45],"computational":[46,118],"effort.":[47],"focus":[49],"thus":[51],"on":[52],"efficient":[53],"solutions":[54],"capable":[55],"achieving":[57],"near":[59],"optimal":[60],"performance":[61],"with":[62],"low":[63],"complexity.":[64,119],"To":[65],"this":[66],"end,":[67],"we":[68],"transform":[69],"design":[71],"into":[73],"continuous":[74,86],"by":[76,92],"two":[77],"approaches:":[78],"penalty":[79],"sparse":[81],"approximation":[82,96],"methods.":[83],"resulting":[85],"nonconvex":[87],"problems":[88],"are":[89,105],"then":[90],"solved":[91],"successive":[94],"convex":[95],"framework.":[97],"Numerical":[98],"results":[99],"indicate":[100],"that":[101],"proposed":[103],"methods":[104,111],"near-optimal,":[106],"outperform":[108],"existing":[109],"suboptimal":[110],"in":[112],"terms":[113],"achieved":[115],"performances":[116]},"counts_by_year":[],"updated_date":"2026-04-20T07:46:08.049788","created_date":"2025-10-10T00:00:00"}
