{"id":"https://openalex.org/W2793436866","doi":"https://doi.org/10.1109/twc.2018.2817223","title":"User Assignment in C-RAN Systems: Algorithms and Bounds","display_name":"User Assignment in C-RAN Systems: Algorithms and Bounds","publication_year":2018,"publication_date":"2018-03-27","ids":{"openalex":"https://openalex.org/W2793436866","doi":"https://doi.org/10.1109/twc.2018.2817223","mag":"2793436866"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2018.2817223","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2018.2817223","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["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 Wireless Communications","raw_type":"journal-article"},"type":"preprint","indexed_in":["arxiv","crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/1606.08401","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5067519923","display_name":"Hadi Ghauch","orcid":"https://orcid.org/0000-0002-9442-671X"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":true,"raw_author_name":"Hadi Ghauch","raw_affiliation_strings":["Department of Information Science and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-9442-671X","affiliations":[{"raw_affiliation_string":"Department of Information Science and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5023667617","display_name":"Muhammad Mahboob Ur Rahman","orcid":"https://orcid.org/0000-0002-6768-0886"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Muhammad Mahboob Ur Rahman","raw_affiliation_strings":["KTH Royal Institute of Technology, Stockholm, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-6768-0886","affiliations":[{"raw_affiliation_string":"KTH Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006135144","display_name":"Sahar Imtiaz","orcid":"https://orcid.org/0000-0002-6864-6970"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Sahar Imtiaz","raw_affiliation_strings":["Department of Information Science and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Information Science and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5081887989","display_name":"Christer Qvarfordt","orcid":"https://orcid.org/0000-0003-1931-5486"},"institutions":[{"id":"https://openalex.org/I4210159102","display_name":"Huawei Technologies (Sweden)","ror":"https://ror.org/0500fyd17","country_code":"SE","type":"company","lineage":["https://openalex.org/I2250955327","https://openalex.org/I4210159102"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Christer Qvarfordt","raw_affiliation_strings":["Huawei Technologies, Kista, Sweden"],"raw_orcid":"https://orcid.org/0000-0003-1931-5486","affiliations":[{"raw_affiliation_string":"Huawei Technologies, Kista, Sweden","institution_ids":["https://openalex.org/I4210159102"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5041348422","display_name":"Mikael Skoglund","orcid":"https://orcid.org/0000-0002-7926-5081"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Mikael Skoglund","raw_affiliation_strings":["Department of Information Science and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-7926-5081","affiliations":[{"raw_affiliation_string":"Department of Information Science and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5037402766","display_name":"James Gross","orcid":"https://orcid.org/0000-0001-6682-6559"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"James Gross","raw_affiliation_strings":["Department of Information Science and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden"],"raw_orcid":"https://orcid.org/0000-0001-6682-6559","affiliations":[{"raw_affiliation_string":"Department of Information Science and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5067519923"],"corresponding_institution_ids":["https://openalex.org/I86987016"],"apc_list":null,"apc_paid":null,"fwci":0.2618,"has_fulltext":true,"cited_by_count":3,"citation_normalized_percentile":{"value":0.55629468,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"17","issue":"6","first_page":"3889","last_page":"3902"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11392","display_name":"Energy Harvesting in Wireless Networks","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/T11392","display_name":"Energy Harvesting in Wireless Networks","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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9998000264167786,"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":0.9983000159263611,"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/c-ran","display_name":"C-RAN","score":0.6769492626190186},{"id":"https://openalex.org/keywords/column-generation","display_name":"Column generation","score":0.6294283270835876},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5536704659461975},{"id":"https://openalex.org/keywords/integer","display_name":"Integer (computer science)","score":0.5239455699920654},{"id":"https://openalex.org/keywords/radio-access-network","display_name":"Radio access network","score":0.5172208547592163},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.5075899362564087},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.5044995546340942},{"id":"https://openalex.org/keywords/branch-and-bound","display_name":"Branch and bound","score":0.4798247814178467},{"id":"https://openalex.org/keywords/heuristic","display_name":"Heuristic","score":0.46874573826789856},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.4601275622844696},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.40607282519340515},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3466278910636902},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.11887916922569275},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.11113753914833069}],"concepts":[{"id":"https://openalex.org/C2779765720","wikidata":"https://www.wikidata.org/wiki/Q5005908","display_name":"C-RAN","level":5,"score":0.6769492626190186},{"id":"https://openalex.org/C168956720","wikidata":"https://www.wikidata.org/wiki/Q3123181","display_name":"Column generation","level":2,"score":0.6294283270835876},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5536704659461975},{"id":"https://openalex.org/C97137487","wikidata":"https://www.wikidata.org/wiki/Q729138","display_name":"Integer (computer science)","level":2,"score":0.5239455699920654},{"id":"https://openalex.org/C106365562","wikidata":"https://www.wikidata.org/wiki/Q3078360","display_name":"Radio access network","level":4,"score":0.5172208547592163},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.5075899362564087},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.5044995546340942},{"id":"https://openalex.org/C93693863","wikidata":"https://www.wikidata.org/wiki/Q897659","display_name":"Branch and bound","level":2,"score":0.4798247814178467},{"id":"https://openalex.org/C173801870","wikidata":"https://www.wikidata.org/wiki/Q201413","display_name":"Heuristic","level":2,"score":0.46874573826789856},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.4601275622844696},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.40607282519340515},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3466278910636902},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.11887916922569275},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.11113753914833069},{"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/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C207029474","wikidata":"https://www.wikidata.org/wiki/Q384018","display_name":"Mobile station","level":3,"score":0.0}],"mesh":[],"locations_count":6,"locations":[{"id":"doi:10.1109/twc.2018.2817223","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2018.2817223","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["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 Wireless Communications","raw_type":"journal-article"},{"id":"pmh:oai:arXiv.org:1606.08401","is_oa":true,"landing_page_url":"http://arxiv.org/abs/1606.08401","pdf_url":"https://arxiv.org/pdf/1606.08401","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"text"},{"id":"mag:2793436866","is_oa":true,"landing_page_url":"https://arxiv.org/pdf/1606.08401","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"arXiv (Cornell University)","raw_type":null},{"id":"pmh:oai:DiVA.org:kth-223705","is_oa":true,"landing_page_url":"http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-223705","pdf_url":null,"source":{"id":"https://openalex.org/S4306401559","display_name":"KTH Publication Database DiVA (KTH Royal Institute of Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article in journal"},{"id":"pmh:oai:HAL:hal-03275798v1","is_oa":false,"landing_page_url":"https://hal.science/hal-03275798","pdf_url":null,"source":{"id":"https://openalex.org/S4306402512","display_name":"HAL (Le Centre pour la Communication Scientifique Directe)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1294671590","host_organization_name":"Centre National de la Recherche Scientifique","host_organization_lineage":["https://openalex.org/I1294671590"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Transactions on Wireless Communications, 2018, 17 (6), pp.3889-3902. ⟨10.1109/TWC.2018.2817223⟩","raw_type":"Journal articles"},{"id":"doi:10.48550/arxiv.1606.08401","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.1606.08401","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"article"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:1606.08401","is_oa":true,"landing_page_url":"http://arxiv.org/abs/1606.08401","pdf_url":"https://arxiv.org/pdf/1606.08401","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"text"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2793436866.pdf","grobid_xml":"https://content.openalex.org/works/W2793436866.grobid-xml"},"referenced_works_count":32,"referenced_works":["https://openalex.org/W1519184722","https://openalex.org/W1540764732","https://openalex.org/W1557495321","https://openalex.org/W1876019781","https://openalex.org/W1970830346","https://openalex.org/W1979408141","https://openalex.org/W1986194303","https://openalex.org/W2001048080","https://openalex.org/W2003973127","https://openalex.org/W2013491227","https://openalex.org/W2050968963","https://openalex.org/W2085425663","https://openalex.org/W2094083774","https://openalex.org/W2096212850","https://openalex.org/W2098363461","https://openalex.org/W2103579292","https://openalex.org/W2105560970","https://openalex.org/W2114215575","https://openalex.org/W2135477317","https://openalex.org/W2136608712","https://openalex.org/W2148320916","https://openalex.org/W2148454256","https://openalex.org/W2152053270","https://openalex.org/W2155174176","https://openalex.org/W2164275514","https://openalex.org/W2247000835","https://openalex.org/W2471897071","https://openalex.org/W2545759130","https://openalex.org/W2787237153","https://openalex.org/W2963501766","https://openalex.org/W2963721865","https://openalex.org/W6673066327"],"related_works":["https://openalex.org/W2963932428","https://openalex.org/W1602326336","https://openalex.org/W3035850354","https://openalex.org/W3100542765","https://openalex.org/W1534525309","https://openalex.org/W2125082976","https://openalex.org/W2968115485","https://openalex.org/W1643124425","https://openalex.org/W2095146790","https://openalex.org/W1585667732","https://openalex.org/W1831976356","https://openalex.org/W1817175535","https://openalex.org/W2040057658","https://openalex.org/W1903646595","https://openalex.org/W2952413632","https://openalex.org/W1801038604","https://openalex.org/W3183387530","https://openalex.org/W2161248691","https://openalex.org/W2963837159","https://openalex.org/W3010909727"],"abstract_inverted_index":{"In":[0,21,143],"this":[1,47],"paper,":[2],"we":[3,26,75],"investigate":[4],"the":[5,33,67,82,85,90,95,100,106,113,117,120,136,149,152,168],"problem":[6,50,55,83],"of":[7,14,36,69,125,132,151],"mitigating":[8],"interference":[9,87],"between":[10],"so-called":[11],"antenna":[12],"domains":[13],"a":[15,42,63,109,181],"cloud":[16],"radio":[17],"access":[18],"network":[19],"(C-RAN).":[20],"contrast":[22],"to":[23,28,38,77,145],"previous":[24],"work,":[25],"turn":[27],"an":[29,52,58,129],"approach":[30],"utilizing":[31],"primarily":[32],"optimal":[34],"assignment":[35,49],"users":[37],"central":[39],"processors":[40],"in":[41,89,122,154],"C-RAN":[43],"deployment.":[44],"We":[45,92,115],"formulate":[46,99],"user":[48],"as":[51,174],"integer":[53],"optimization":[54],"and":[56,84,103,134],"propose":[57],"iterative":[59],"algorithm":[60],"for":[61,140],"obtaining":[62],"solution.":[64],"Motivated":[65],"by":[66],"lack":[68],"optimality":[70],"guarantees":[71],"on":[72,81,148],"such":[73],"solutions,":[74],"opt":[76],"find":[78],"lower":[79,183],"bounds":[80,121,153],"resulting":[86],"leakage":[88],"network.":[91],"thus":[93],"derive":[94],"corresponding":[96],"Dantzig-Wolfe":[97],"decomposition,":[98],"dual":[101],"problem,":[102],"show":[104,159],"that":[105,119],"former":[107],"offers":[108],"tighter":[110],"bound":[111],"than":[112],"latter.":[114],"highlight":[116],"fact":[118],"question":[123],"consist":[124],"linear":[126],"problems":[127],"with":[128,180],"exponential":[130],"number":[131],"variables":[133],"adapt":[135],"column":[137],"generation":[138],"method":[139],"solving":[141],"them.":[142],"addition":[144],"shedding":[146],"light":[147],"tightness":[150],"question,":[155],"our":[156],"numerical":[157],"results":[158],"significant":[160],"sum-rate":[161],"gains":[162],"over":[163],"several":[164],"comparison":[165],"schemes.":[166],"Moreover,":[167],"proposed":[169],"scheme":[170],"delivers":[171],"similar":[172],"performance":[173],"weighted":[175],"minimum":[176],"mean":[177],"squared-error":[178],"(MMSE)":[179],"significantly":[182],"complexity":[184],"(around":[185],"10":[186],"times":[187],"less).":[188]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1}],"updated_date":"2026-05-07T13:39:58.223016","created_date":"2025-10-10T00:00:00"}