{"id":"https://openalex.org/W3111502339","doi":"https://doi.org/10.1109/access.2020.3044396","title":"Total Cost of Ownership of Digital vs. Analog Radio-Over-Fiber Architectures for 5G Fronthauling","display_name":"Total Cost of Ownership of Digital vs. Analog Radio-Over-Fiber Architectures for 5G Fronthauling","publication_year":2020,"publication_date":"2020-01-01","ids":{"openalex":"https://openalex.org/W3111502339","doi":"https://doi.org/10.1109/access.2020.3044396","mag":"3111502339"},"language":"en","primary_location":{"id":"doi:10.1109/access.2020.3044396","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.3044396","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/6514899/09293022.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://ieeexplore.ieee.org/ielx7/6287639/6514899/09293022.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5068077317","display_name":"Aleksejs Uda\u013ccovs","orcid":"https://orcid.org/0000-0003-3754-0265"},"institutions":[{"id":"https://openalex.org/I2800664555","display_name":"RISE Research Institutes of Sweden","ror":"https://ror.org/03nnxqz81","country_code":"SE","type":"other","lineage":["https://openalex.org/I2800664555"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Aleksejs Udalcovs","raw_affiliation_strings":["Networks Unit, RISE Research Institutes of Sweden, Stockholm, Sweden"],"raw_orcid":"https://orcid.org/0000-0003-3754-0265","affiliations":[{"raw_affiliation_string":"Networks Unit, RISE Research Institutes of Sweden, Stockholm, Sweden","institution_ids":["https://openalex.org/I2800664555"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053946294","display_name":"Marco Levantesi","orcid":"https://orcid.org/0000-0003-1260-9115"},"institutions":[{"id":"https://openalex.org/I177477856","display_name":"Politecnico di Torino","ror":"https://ror.org/00bgk9508","country_code":"IT","type":"education","lineage":["https://openalex.org/I177477856"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Marco Levantesi","raw_affiliation_strings":["Dipartimento di Elettronica e Telecomunicazioni, Politecnico di Torino, Turin, Italy"],"raw_orcid":"https://orcid.org/0000-0003-1260-9115","affiliations":[{"raw_affiliation_string":"Dipartimento di Elettronica e Telecomunicazioni, Politecnico di Torino, Turin, Italy","institution_ids":["https://openalex.org/I177477856"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013829184","display_name":"Patryk J. Urban","orcid":"https://orcid.org/0000-0001-5546-3115"},"institutions":[{"id":"https://openalex.org/I155313962","display_name":"West Pomeranian University of Technology in Szczecin","ror":"https://ror.org/0596m7f19","country_code":"PL","type":"education","lineage":["https://openalex.org/I155313962"]}],"countries":["PL"],"is_corresponding":false,"raw_author_name":"Patryk Urban","raw_affiliation_strings":["Optical Reference Network Laboratory, West Pomeranian University of Technology, Szczecin, Poland"],"raw_orcid":"https://orcid.org/0000-0001-5546-3115","affiliations":[{"raw_affiliation_string":"Optical Reference Network Laboratory, West Pomeranian University of Technology, Szczecin, Poland","institution_ids":["https://openalex.org/I155313962"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086497575","display_name":"Darli A. A. Mello","orcid":"https://orcid.org/0000-0002-4888-1850"},"institutions":[{"id":"https://openalex.org/I181391015","display_name":"Universidade Estadual de Campinas (UNICAMP)","ror":"https://ror.org/04wffgt70","country_code":"BR","type":"education","lineage":["https://openalex.org/I181391015"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Darli A. A. Mello","raw_affiliation_strings":["School of Electrical and Computer Engineering, University of Campinas, Campinas, Brazil"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electrical and Computer Engineering, University of Campinas, Campinas, Brazil","institution_ids":["https://openalex.org/I181391015"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5017161463","display_name":"Roberto Gaudino","orcid":"https://orcid.org/0000-0003-1909-4281"},"institutions":[{"id":"https://openalex.org/I177477856","display_name":"Politecnico di Torino","ror":"https://ror.org/00bgk9508","country_code":"IT","type":"education","lineage":["https://openalex.org/I177477856"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Roberto Gaudino","raw_affiliation_strings":["Dipartimento di Elettronica e Telecomunicazioni, Politecnico di Torino, Turin, Italy"],"raw_orcid":"https://orcid.org/0000-0003-1909-4281","affiliations":[{"raw_affiliation_string":"Dipartimento di Elettronica e Telecomunicazioni, Politecnico di Torino, Turin, Italy","institution_ids":["https://openalex.org/I177477856"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031782271","display_name":"Oskars Ozoli\u0146\u0161","orcid":"https://orcid.org/0000-0001-9839-7488"},"institutions":[{"id":"https://openalex.org/I2800664555","display_name":"RISE Research Institutes of Sweden","ror":"https://ror.org/03nnxqz81","country_code":"SE","type":"other","lineage":["https://openalex.org/I2800664555"]},{"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":"Oskars Ozolins","raw_affiliation_strings":["Networks Unit, RISE Research Institutes of Sweden, Stockholm, Sweden","School of Engineering Sciences (SCI), KTH Royal Institute of Technology, Stockholm, Sweden"],"raw_orcid":"https://orcid.org/0000-0001-9839-7488","affiliations":[{"raw_affiliation_string":"Networks Unit, RISE Research Institutes of Sweden, Stockholm, Sweden","institution_ids":["https://openalex.org/I2800664555"]},{"raw_affiliation_string":"School of Engineering Sciences (SCI), KTH Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5028042424","display_name":"Paolo Monti","orcid":"https://orcid.org/0000-0002-5636-9910"},"institutions":[{"id":"https://openalex.org/I66862912","display_name":"Chalmers University of Technology","ror":"https://ror.org/040wg7k59","country_code":"SE","type":"education","lineage":["https://openalex.org/I66862912"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Paolo Monti","raw_affiliation_strings":["Electrical Engineering Department, Chalmers University of Technology, Gothenburg, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-5636-9910","affiliations":[{"raw_affiliation_string":"Electrical Engineering Department, Chalmers University of Technology, Gothenburg, Sweden","institution_ids":["https://openalex.org/I66862912"]}]}],"institutions":[],"countries_distinct_count":4,"institutions_distinct_count":7,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":3.0179,"has_fulltext":true,"cited_by_count":42,"citation_normalized_percentile":{"value":0.92007637,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":99},"biblio":{"volume":"8","issue":null,"first_page":"223562","last_page":"223573"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10767","display_name":"Advanced Photonic Communication Systems","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"}},"topics":[{"id":"https://openalex.org/T10767","display_name":"Advanced Photonic Communication Systems","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/T10847","display_name":"Advanced Optical Network Technologies","score":0.9975000023841858,"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/T12146","display_name":"Power Line Communications and Noise","score":0.9969000220298767,"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/subcarrier","display_name":"Subcarrier","score":0.8806681632995605},{"id":"https://openalex.org/keywords/radio-over-fiber","display_name":"Radio over fiber","score":0.7796697020530701},{"id":"https://openalex.org/keywords/operating-expense","display_name":"Operating expense","score":0.7067625522613525},{"id":"https://openalex.org/keywords/digital-signal-processing","display_name":"Digital signal processing","score":0.6293200254440308},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5480350852012634},{"id":"https://openalex.org/keywords/subcarrier-multiplexing","display_name":"Subcarrier multiplexing","score":0.5099672079086304},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4986271858215332},{"id":"https://openalex.org/keywords/capital-expenditure","display_name":"Capital expenditure","score":0.44755908846855164},{"id":"https://openalex.org/keywords/radio-frequency","display_name":"Radio frequency","score":0.44551706314086914},{"id":"https://openalex.org/keywords/optical-fiber","display_name":"Optical fiber","score":0.36966192722320557},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3685512840747833},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.27501392364501953},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.25016576051712036}],"concepts":[{"id":"https://openalex.org/C198329298","wikidata":"https://www.wikidata.org/wiki/Q586358","display_name":"Subcarrier","level":4,"score":0.8806681632995605},{"id":"https://openalex.org/C2780113332","wikidata":"https://www.wikidata.org/wiki/Q16045086","display_name":"Radio over fiber","level":3,"score":0.7796697020530701},{"id":"https://openalex.org/C87450203","wikidata":"https://www.wikidata.org/wiki/Q831940","display_name":"Operating expense","level":2,"score":0.7067625522613525},{"id":"https://openalex.org/C84462506","wikidata":"https://www.wikidata.org/wiki/Q173142","display_name":"Digital signal processing","level":2,"score":0.6293200254440308},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5480350852012634},{"id":"https://openalex.org/C2779103187","wikidata":"https://www.wikidata.org/wiki/Q7630912","display_name":"Subcarrier multiplexing","level":5,"score":0.5099672079086304},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4986271858215332},{"id":"https://openalex.org/C172497479","wikidata":"https://www.wikidata.org/wiki/Q302208","display_name":"Capital expenditure","level":2,"score":0.44755908846855164},{"id":"https://openalex.org/C74064498","wikidata":"https://www.wikidata.org/wiki/Q3396184","display_name":"Radio frequency","level":2,"score":0.44551706314086914},{"id":"https://openalex.org/C194232370","wikidata":"https://www.wikidata.org/wiki/Q162","display_name":"Optical fiber","level":2,"score":0.36966192722320557},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3685512840747833},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.27501392364501953},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.25016576051712036},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.0},{"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/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.0},{"id":"https://openalex.org/C121955636","wikidata":"https://www.wikidata.org/wiki/Q4116214","display_name":"Accounting","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/access.2020.3044396","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.3044396","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/6514899/09293022.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:2dd00e4e80224ca4b24ec8bef55bb44c","is_oa":true,"landing_page_url":"https://doaj.org/article/2dd00e4e80224ca4b24ec8bef55bb44c","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","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":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 8, Pp 223562-223573 (2020)","raw_type":"article"},{"id":"pmh:oai:research.chalmers.se:521719","is_oa":false,"landing_page_url":"https://research.chalmers.se/en/publication/521719","pdf_url":null,"source":{"id":"https://openalex.org/S4306402469","display_name":"Chalmers Research (Chalmers University of Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I66862912","host_organization_name":"Chalmers University of Technology","host_organization_lineage":["https://openalex.org/I66862912"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":""}],"best_oa_location":{"id":"doi:10.1109/access.2020.3044396","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.3044396","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/6514899/09293022.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/9","display_name":"Industry, innovation and infrastructure","score":0.6000000238418579}],"awards":[{"id":"https://openalex.org/G140429316","display_name":null,"funder_award_id":"1.1.1.2","funder_id":"https://openalex.org/F4320335322","funder_display_name":"European Regional Development Fund"},{"id":"https://openalex.org/G192417872","display_name":null,"funder_award_id":"1.1.1.2/VIAA/4/20/660","funder_id":"https://openalex.org/F4320335322","funder_display_name":"European Regional Development Fund"},{"id":"https://openalex.org/G4350830445","display_name":null,"funder_award_id":"2016-04510","funder_id":"https://openalex.org/F4320322581","funder_display_name":"Vetenskapsr\u00e5det"},{"id":"https://openalex.org/G5077087964","display_name":null,"funder_award_id":"1.1.2","funder_id":"https://openalex.org/F4320335322","funder_display_name":"European Regional Development Fund"},{"id":"https://openalex.org/G5924386900","display_name":null,"funder_award_id":"2017-01559","funder_id":"https://openalex.org/F4320321030","funder_display_name":"VINNOVA"},{"id":"https://openalex.org/G6116735301","display_name":null,"funder_award_id":"2019-04893","funder_id":"https://openalex.org/F4320321030","funder_display_name":"VINNOVA"}],"funders":[{"id":"https://openalex.org/F4320321030","display_name":"VINNOVA","ror":"https://ror.org/01kd5m353"},{"id":"https://openalex.org/F4320322581","display_name":"Vetenskapsr\u00e5det","ror":"https://ror.org/03zttf063"},{"id":"https://openalex.org/F4320335322","display_name":"European Regional Development Fund","ror":"https://ror.org/00k4n6c32"},{"id":"https://openalex.org/F4320335909","display_name":"State Education Development Agency Republic of Latvia","ror":"https://ror.org/055t1w920"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3111502339.pdf","grobid_xml":"https://content.openalex.org/works/W3111502339.grobid-xml"},"referenced_works_count":33,"referenced_works":["https://openalex.org/W1990737973","https://openalex.org/W2010645208","https://openalex.org/W2115856016","https://openalex.org/W2186209539","https://openalex.org/W2253087186","https://openalex.org/W2326813082","https://openalex.org/W2343896316","https://openalex.org/W2344783839","https://openalex.org/W2432225084","https://openalex.org/W2523487951","https://openalex.org/W2529265478","https://openalex.org/W2557221792","https://openalex.org/W2581307992","https://openalex.org/W2591580909","https://openalex.org/W2591677589","https://openalex.org/W2594489267","https://openalex.org/W2616102907","https://openalex.org/W2740759426","https://openalex.org/W2772763637","https://openalex.org/W2774714174","https://openalex.org/W2776104790","https://openalex.org/W2792694510","https://openalex.org/W2798596030","https://openalex.org/W2810059419","https://openalex.org/W2893487625","https://openalex.org/W2943168010","https://openalex.org/W2955525500","https://openalex.org/W2955693079","https://openalex.org/W2971262151","https://openalex.org/W2976886701","https://openalex.org/W2994922239","https://openalex.org/W2999254149","https://openalex.org/W6768601501"],"related_works":["https://openalex.org/W2151254308","https://openalex.org/W2580434176","https://openalex.org/W2091166613","https://openalex.org/W2153877848","https://openalex.org/W2592900877","https://openalex.org/W3129272844","https://openalex.org/W2053698932","https://openalex.org/W2540873362","https://openalex.org/W826751029","https://openalex.org/W2030561159"],"abstract_inverted_index":{"The":[0,27,71,87,116,152],"article":[1],"analyzes":[2],"the":[3,64,94,100,107,112,119,126,130,136,139,146,179],"total":[4],"cost":[5,127,143,164],"of":[6,9,96,102,129,141],"ownership":[7],"(TCO)":[8],"5G":[10],"fronthauling":[11],"solutions":[12],"based":[13,62],"on":[14,63,125],"analog":[15,47,55,131],"and":[16,29,58,82,110,149],"digital":[17,50,59],"radio-over-fiber":[18],"(RoF)":[19],"architectures":[20],"in":[21,162],"cloud":[22],"radio":[23,67],"access":[24],"networks":[25],"(C-RANs).":[26],"capital":[28],"operational":[30],"expenditures":[31],"(CAPEX,":[32],"OPEX)":[33],"are":[34],"assessed,":[35],"for":[36,166],"a":[37,167,172],"10-year":[38],"period,":[39],"considering":[40],"three":[41],"different":[42],"RoF":[43,48,56,60,132],"techniques:":[44],"intermediate":[45],"frequency":[46],"(IF-A-RoF),":[49],"signal":[51],"processing":[52],"(DSP)":[53],"assisted":[54],"(DSP-A-RoF),":[57],"(D-RoF)":[61],"common":[65],"public":[66],"interface":[68],"(CPRI)":[69],"specifications.":[70],"greenfield":[72],"deployment":[73],"scenario":[74],"under":[75],"exam":[76],"includes":[77],"both":[78],"fiber":[79,83],"trenching":[80],"(FT)":[81],"leasing":[84],"(FL)":[85],"options.":[86],"TCO":[88],"is":[89],"assessed":[90],"while":[91,171],"varying":[92],"(i)":[93],"number":[95,101],"aggregated":[97],"subcarriers,":[98],"(ii)":[99],"three-sector":[103],"antennas":[104],"located":[105],"at":[106],"base":[108],"station,":[109],"(iii)":[111],"mean":[113],"fiber-hop":[114],"length.":[115],"comparison":[117],"highlights":[118],"significance":[120],"that":[121,156],"subcarrier":[122,157],"aggregation":[123,158],"has":[124],"efficiency":[128,165],"solutions.":[133],"In":[134],"addition,":[135],"analysis":[137],"details":[138],"contribution":[140],"each":[142],"category":[144],"to":[145],"overall":[147],"CAPEX":[148],"OPEX":[150,181],"values.":[151],"obtained":[153],"results":[154,161],"indicate":[155],"via":[159],"DSP":[160],"high":[163],"mobile":[168],"fronthaul":[169],"network,":[170],"CPRI-based":[173],"architecture":[174],"together":[175],"with":[176],"FL":[177],"brings":[178],"highest":[180],"value.":[182]},"counts_by_year":[{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":6},{"year":2022,"cited_by_count":15},{"year":2021,"cited_by_count":8}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}