{"id":"https://openalex.org/W4383199799","doi":"https://doi.org/10.23919/jcin.2023.10173730","title":"Joint Beamforming for Delay Optimal Transmission in Cache-Enabled Wireless Backhaul Networks","display_name":"Joint Beamforming for Delay Optimal Transmission in Cache-Enabled Wireless Backhaul Networks","publication_year":2023,"publication_date":"2023-06-01","ids":{"openalex":"https://openalex.org/W4383199799","doi":"https://doi.org/10.23919/jcin.2023.10173730"},"language":"en","primary_location":{"id":"doi:10.23919/jcin.2023.10173730","is_oa":false,"landing_page_url":"https://doi.org/10.23919/jcin.2023.10173730","pdf_url":null,"source":{"id":"https://openalex.org/S4210178728","display_name":"Journal of Communications and Information Networks","issn_l":"2096-1081","issn":["2096-1081","2509-3312"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Communications and Information Networks","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/A5046199549","display_name":"Lingya Liu","orcid":"https://orcid.org/0000-0002-4877-5951"},"institutions":[{"id":"https://openalex.org/I66867065","display_name":"East China Normal University","ror":"https://ror.org/02n96ep67","country_code":"CN","type":"education","lineage":["https://openalex.org/I66867065"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lingya Liu","raw_affiliation_strings":["School of Communication and Electronic Engineering, East China Normal University, Shanghai 200241, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Communication and Electronic Engineering, East China Normal University, Shanghai 200241, China","institution_ids":["https://openalex.org/I66867065"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044004251","display_name":"Cunqing Hua","orcid":"https://orcid.org/0000-0003-0243-805X"},"institutions":[{"id":"https://openalex.org/I183067930","display_name":"Shanghai Jiao Tong University","ror":"https://ror.org/0220qvk04","country_code":"CN","type":"education","lineage":["https://openalex.org/I183067930"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Cunqing Hua","raw_affiliation_strings":["School of Cyber Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Cyber Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China","institution_ids":["https://openalex.org/I183067930"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103670891","display_name":"Jinsong Yu","orcid":"https://orcid.org/0009-0006-0448-2133"},"institutions":[{"id":"https://openalex.org/I183067930","display_name":"Shanghai Jiao Tong University","ror":"https://ror.org/0220qvk04","country_code":"CN","type":"education","lineage":["https://openalex.org/I183067930"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jinsong Yu","raw_affiliation_strings":["School of Cyber Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Cyber Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China","institution_ids":["https://openalex.org/I183067930"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5086524620","display_name":"Jing Xu","orcid":"https://orcid.org/0000-0002-9911-1581"},"institutions":[{"id":"https://openalex.org/I66867065","display_name":"East China Normal University","ror":"https://ror.org/02n96ep67","country_code":"CN","type":"education","lineage":["https://openalex.org/I66867065"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jing Xu","raw_affiliation_strings":["School of Communication and Electronic Engineering, East China Normal University, Shanghai 200241, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Communication and Electronic Engineering, East China Normal University, Shanghai 200241, China","institution_ids":["https://openalex.org/I66867065"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1990,"currency":"USD","value_usd":1990},"apc_paid":null,"fwci":0.1333,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.46391632,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":"8","issue":"2","first_page":"141","last_page":"154"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11158","display_name":"Wireless Networks and Protocols","score":0.9973000288009644,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11392","display_name":"Energy Harvesting in Wireless Networks","score":0.9955999851226807,"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/backhaul","display_name":"Backhaul (telecommunications)","score":0.9451216459274292},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7970215082168579},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.6981709003448486},{"id":"https://openalex.org/keywords/cache","display_name":"Cache","score":0.6917798519134521},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.63947993516922},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.5651251077651978},{"id":"https://openalex.org/keywords/relay","display_name":"Relay","score":0.48658573627471924},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.45332518219947815},{"id":"https://openalex.org/keywords/wireless-network","display_name":"Wireless network","score":0.4372100234031677},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.16617479920387268}],"concepts":[{"id":"https://openalex.org/C103760667","wikidata":"https://www.wikidata.org/wiki/Q798444","display_name":"Backhaul (telecommunications)","level":3,"score":0.9451216459274292},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7970215082168579},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.6981709003448486},{"id":"https://openalex.org/C115537543","wikidata":"https://www.wikidata.org/wiki/Q165596","display_name":"Cache","level":2,"score":0.6917798519134521},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.63947993516922},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.5651251077651978},{"id":"https://openalex.org/C2778156585","wikidata":"https://www.wikidata.org/wiki/Q174053","display_name":"Relay","level":3,"score":0.48658573627471924},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.45332518219947815},{"id":"https://openalex.org/C108037233","wikidata":"https://www.wikidata.org/wiki/Q11375","display_name":"Wireless network","level":3,"score":0.4372100234031677},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.16617479920387268},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"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/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.23919/jcin.2023.10173730","is_oa":false,"landing_page_url":"https://doi.org/10.23919/jcin.2023.10173730","pdf_url":null,"source":{"id":"https://openalex.org/S4210178728","display_name":"Journal of Communications and Information Networks","issn_l":"2096-1081","issn":["2096-1081","2509-3312"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Communications and Information Networks","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.4699999988079071,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2963149344","https://openalex.org/W4297310313","https://openalex.org/W2012551222","https://openalex.org/W4303414366","https://openalex.org/W2097644939","https://openalex.org/W1724300815","https://openalex.org/W4200445394","https://openalex.org/W2594059527","https://openalex.org/W2097820490","https://openalex.org/W2357429841"],"abstract_inverted_index":{"This":[0],"paper":[1],"considers":[2],"the":[3,25,39,49,58,61,69,81,85,99,119,124,135,138,144,173,187,195],"problem":[4,146],"of":[5,17,84,134,194],"joint":[6,132],"beamformer":[7,111,136],"design":[8,112],"for":[9],"a":[10,15,131],"two-tier":[11],"wireless":[12,30],"network,":[13],"whereby":[14],"set":[16],"cache-enabled":[18],"access":[19,50,100,127],"points":[20],"(APs)":[21],"are":[22,55,115,169,180],"connected":[23],"to":[24,44,68,117,171],"base":[26],"station":[27],"(BS)":[28],"via":[29,130],"backhaul":[31,62,102,125],"links.":[32,51],"The":[33,159],"APs":[34,87],"can":[35,77,104],"prefetch":[36],"and":[37,101,126,140,149,163,189],"store":[38],"files":[40,76],"requested":[41,75],"by":[42],"users,":[43],"serve":[45],"users":[46],"directly":[47],"in":[48,60,80,98,123],"Thus":[52],"low-latency":[53],"transmissions":[54,129],"enabled":[56],"as":[57,92,94],"transmission":[59,96,191],"links":[63,103],"is":[64],"saved.":[65],"However,":[66],"due":[67],"limited":[70],"cache":[71],"capacity,":[72],"not":[73],"all":[74],"be":[78,90,105],"stored":[79],"APs,":[82],"some":[83],"non-cached":[86],"then":[88,181],"should":[89],"utilized":[91],"long":[93],"their":[95],"delays":[97],"well":[106],"addressed.":[107],"Two":[108],"delay":[109,121,192],"optimal":[110],"(DOBD)":[113],"problems":[114,175],"formulated":[116],"minimize":[118],"overall":[120],"incurred":[122],"link":[128,156],"optimization":[133],"at":[137],"BS":[139],"APs.":[141],"We":[142],"consider":[143],"DOBD":[145],"under":[147,198],"non-fragment":[148],"fragment":[150],"caching":[151],"policies,":[152],"both":[153],"involving":[154],"nonconvex":[155,174],"rate":[157],"constraints.":[158],"semi-definite":[160],"relaxation":[161],"(SDR)":[162],"sequential":[164],"convex":[165,177],"approximation":[166],"(SCA)":[167],"schemes":[168],"adopted":[170],"approximate":[172],"into":[176],"ones,":[178],"which":[179],"iteratively":[182],"solved.":[183],"Numerical":[184],"results":[185],"demonstrate":[186],"convergence":[188],"improved":[190],"performance":[193],"proposed":[196],"scheme":[197],"various":[199],"network":[200],"settings.":[201]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-07-23T08:03:31.855105","created_date":"2025-10-10T00:00:00"}