{"id":"https://openalex.org/W2810303913","doi":"https://doi.org/10.1109/tcomm.2018.2850824","title":"Charge-Then-Forward: Wireless-Powered Communication for Multiuser Relay Networks","display_name":"Charge-Then-Forward: Wireless-Powered Communication for Multiuser Relay Networks","publication_year":2018,"publication_date":"2018-06-26","ids":{"openalex":"https://openalex.org/W2810303913","doi":"https://doi.org/10.1109/tcomm.2018.2850824","mag":"2810303913"},"language":"en","primary_location":{"id":"doi:10.1109/tcomm.2018.2850824","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2018.2850824","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications","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/A5100761838","display_name":"Mengyu Liu","orcid":"https://orcid.org/0000-0003-1548-2682"},"institutions":[{"id":"https://openalex.org/I90610280","display_name":"South China University of Technology","ror":"https://ror.org/0530pts50","country_code":"CN","type":"education","lineage":["https://openalex.org/I90610280"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Mengyu Liu","raw_affiliation_strings":["School of Electronic and Information Engineering, South China University of Technology, Guangzhou, China"],"affiliations":[{"raw_affiliation_string":"School of Electronic and Information Engineering, South China University of Technology, Guangzhou, China","institution_ids":["https://openalex.org/I90610280"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100390907","display_name":"Yuan Liu","orcid":"https://orcid.org/0000-0002-9447-0219"},"institutions":[{"id":"https://openalex.org/I90610280","display_name":"South China University of Technology","ror":"https://ror.org/0530pts50","country_code":"CN","type":"education","lineage":["https://openalex.org/I90610280"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yuan Liu","raw_affiliation_strings":["School of Electronic and Information Engineering, South China University of Technology, Guangzhou, China"],"affiliations":[{"raw_affiliation_string":"School of Electronic and Information Engineering, South China University of Technology, Guangzhou, China","institution_ids":["https://openalex.org/I90610280"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5100761838"],"corresponding_institution_ids":["https://openalex.org/I90610280"],"apc_list":null,"apc_paid":null,"fwci":1.8025,"has_fulltext":false,"cited_by_count":19,"citation_normalized_percentile":{"value":0.85903973,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"66","issue":"11","first_page":"5155","last_page":"5167"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11392","display_name":"Energy Harvesting in Wireless Networks","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/T11392","display_name":"Energy Harvesting in Wireless Networks","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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9984999895095825,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9965999722480774,"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/relay","display_name":"Relay","score":0.7007112503051758},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.6240176558494568},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5695950388908386},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.47547832131385803},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.46068811416625977},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4595971703529358},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.4166645407676697},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.32382869720458984},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.1654304563999176},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.10038498044013977}],"concepts":[{"id":"https://openalex.org/C2778156585","wikidata":"https://www.wikidata.org/wiki/Q174053","display_name":"Relay","level":3,"score":0.7007112503051758},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.6240176558494568},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5695950388908386},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.47547832131385803},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.46068811416625977},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4595971703529358},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.4166645407676697},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.32382869720458984},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.1654304563999176},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.10038498044013977},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcomm.2018.2850824","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2018.2850824","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.8899999856948853}],"awards":[{"id":"https://openalex.org/G3481872575","display_name":null,"funder_award_id":"U1701265","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7818610422","display_name":null,"funder_award_id":"61771203","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":32,"referenced_works":["https://openalex.org/W1971038035","https://openalex.org/W1972771667","https://openalex.org/W1973720496","https://openalex.org/W1981884085","https://openalex.org/W1993710812","https://openalex.org/W1997770298","https://openalex.org/W2032372805","https://openalex.org/W2045343076","https://openalex.org/W2068499153","https://openalex.org/W2094000142","https://openalex.org/W2109840512","https://openalex.org/W2111844221","https://openalex.org/W2118588134","https://openalex.org/W2140973383","https://openalex.org/W2153097555","https://openalex.org/W2156441612","https://openalex.org/W2161272050","https://openalex.org/W2171327552","https://openalex.org/W2223876649","https://openalex.org/W2224014298","https://openalex.org/W2338114094","https://openalex.org/W2515629000","https://openalex.org/W2542194228","https://openalex.org/W2581376251","https://openalex.org/W2591436624","https://openalex.org/W2595819514","https://openalex.org/W2735013959","https://openalex.org/W2964261925","https://openalex.org/W3101496806","https://openalex.org/W3105322586","https://openalex.org/W3106182688","https://openalex.org/W4250589301"],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W2899084033","https://openalex.org/W3003988483","https://openalex.org/W2059794078","https://openalex.org/W2054264741","https://openalex.org/W2537178846","https://openalex.org/W2147327588","https://openalex.org/W2035603224","https://openalex.org/W2356316935","https://openalex.org/W2899044229"],"abstract_inverted_index":{"This":[0],"paper":[1],"studies":[2],"a":[3,14,21,122],"relay-assisted":[4],"wireless-powered":[5,72],"communication":[6],"network":[7],"consisting":[8],"of":[9,86,164],"multiple":[10,59,65],"source-destination":[11],"pairs":[12,89],"and":[13,45,96,106,125,155],"hybrid":[15],"relay":[16],"node":[17],"(HRN).":[18],"We":[19],"consider":[20],"\u201ccharge-then-forward\u201d":[22],"protocol":[23],"at":[24,70],"the":[25,29,43,48,51,71,83,93,111,117,130,135,140,153,158,162,165],"HRN,":[26],"in":[27,139],"which":[28],"HRN":[30],"with":[31],"constant":[32],"energy":[33,39],"supply":[34],"first":[35],"acts":[36],"as":[37,121],"an":[38],"transmitter":[40],"to":[41,53,81,151],"charge":[42],"sources,":[44],"then":[46],"forwards":[47],"information":[49],"from":[50],"sources":[52,73],"their":[54],"destinations":[55],"through":[56],"time":[57],"division":[58,64],"access":[60,66],"(TDMA)":[61],"or":[62],"frequency":[63],"(FDMA).":[67],"Processing":[68],"costs":[69],"are":[74,108,146],"taken":[75],"into":[76],"account.":[77],"Our":[78],"goal":[79],"is":[80,119],"maximize":[82],"sum":[84],"rate":[85],"all":[87],"transmission":[88],"by":[90,114],"jointly":[91],"optimizing":[92],"time,":[94],"frequency,":[95],"power":[97],"resources.":[98],"The":[99],"formulated":[100],"optimization":[101],"problems":[102],"for":[103,148],"both":[104,149],"TDMA":[105,112],"FDMA":[107,131],"non-convex.":[109],"For":[110,129],"scheme,":[113],"appropriate":[115],"transformation,":[116],"problem":[118,124],"reformulated":[120],"convex":[123],"be":[126],"optimally":[127],"solved.":[128],"case,":[132],"we":[133],"find":[134],"asymptotically":[136],"optimal":[137],"solution":[138],"dual":[141],"domain.":[142],"Furthermore,":[143],"suboptimal":[144],"algorithms":[145],"proposed":[147,166],"schemes":[150],"tradeoff":[152],"complexity":[154],"performance.":[156],"Finally,":[157],"simulation":[159],"results":[160],"validate":[161],"effectiveness":[163],"schemes.":[167]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}