{"id":"https://openalex.org/W2963738831","doi":"https://doi.org/10.1109/tvt.2018.2799947","title":"Spectral and Energy-Efficient Wireless Powered IoT Networks: NOMA or TDMA?","display_name":"Spectral and Energy-Efficient Wireless Powered IoT Networks: NOMA or TDMA?","publication_year":2018,"publication_date":"2018-01-30","ids":{"openalex":"https://openalex.org/W2963738831","doi":"https://doi.org/10.1109/tvt.2018.2799947","mag":"2963738831"},"language":"en","primary_location":{"id":"doi:10.1109/tvt.2018.2799947","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2018.2799947","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"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 Vehicular Technology","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/A5048817096","display_name":"Qingqing Wu","orcid":"https://orcid.org/0000-0002-0043-3266"},"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":true,"raw_author_name":"Qingqing Wu","raw_affiliation_strings":["Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China"],"affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China","institution_ids":["https://openalex.org/I183067930"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100344189","display_name":"Wen Chen","orcid":"https://orcid.org/0000-0003-2133-8679"},"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":"Wen Chen","raw_affiliation_strings":["Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China"],"affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China","institution_ids":["https://openalex.org/I183067930"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006080984","display_name":"Derrick Wing Kwan Ng","orcid":"https://orcid.org/0000-0001-6400-712X"},"institutions":[{"id":"https://openalex.org/I31746571","display_name":"UNSW Sydney","ror":"https://ror.org/03r8z3t63","country_code":"AU","type":"education","lineage":["https://openalex.org/I31746571"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Derrick Wing Kwan Ng","raw_affiliation_strings":["School of Electrical Engineering and Telecommunications, The University of New South Wales, Sydney, NSW, Australia"],"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering and Telecommunications, The University of New South Wales, Sydney, NSW, Australia","institution_ids":["https://openalex.org/I31746571"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5033990377","display_name":"Robert Schober","orcid":"https://orcid.org/0000-0002-6420-4884"},"institutions":[{"id":"https://openalex.org/I181369854","display_name":"Friedrich-Alexander-Universit\u00e4t Erlangen-N\u00fcrnberg","ror":"https://ror.org/00f7hpc57","country_code":"DE","type":"education","lineage":["https://openalex.org/I181369854"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Robert Schober","raw_affiliation_strings":["Institute for Digital Communications, Friedrich-Alexander-University Erlangen-N\u00fcrnberg, Erlangen, Germany"],"affiliations":[{"raw_affiliation_string":"Institute for Digital Communications, Friedrich-Alexander-University Erlangen-N\u00fcrnberg, Erlangen, Germany","institution_ids":["https://openalex.org/I181369854"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5048817096"],"corresponding_institution_ids":["https://openalex.org/I183067930"],"apc_list":null,"apc_paid":null,"fwci":21.7208,"has_fulltext":false,"cited_by_count":265,"citation_normalized_percentile":{"value":0.99656309,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":100},"biblio":{"volume":"67","issue":"7","first_page":"6663","last_page":"6667"},"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9991999864578247,"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/T12079","display_name":"IoT Networks and Protocols","score":0.9991000294685364,"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/noma","display_name":"Noma","score":0.8744014501571655},{"id":"https://openalex.org/keywords/time-division-multiple-access","display_name":"Time division multiple access","score":0.7727211713790894},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.6702129244804382},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5331869125366211},{"id":"https://openalex.org/keywords/energy","display_name":"Energy (signal processing)","score":0.4900864362716675},{"id":"https://openalex.org/keywords/internet-of-things","display_name":"Internet of Things","score":0.4841654896736145},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.48304659128189087},{"id":"https://openalex.org/keywords/energy-harvesting","display_name":"Energy harvesting","score":0.47690296173095703},{"id":"https://openalex.org/keywords/radio-networks","display_name":"Radio networks","score":0.42798662185668945},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.41408878564834595},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.40547817945480347},{"id":"https://openalex.org/keywords/wireless-network","display_name":"Wireless network","score":0.3547261953353882},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.3493475914001465},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.32610124349594116},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.25177523493766785},{"id":"https://openalex.org/keywords/embedded-system","display_name":"Embedded system","score":0.1491852104663849},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.07308381795883179}],"concepts":[{"id":"https://openalex.org/C2775918612","wikidata":"https://www.wikidata.org/wiki/Q994794","display_name":"Noma","level":3,"score":0.8744014501571655},{"id":"https://openalex.org/C117313154","wikidata":"https://www.wikidata.org/wiki/Q878344","display_name":"Time division multiple access","level":2,"score":0.7727211713790894},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.6702129244804382},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5331869125366211},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.4900864362716675},{"id":"https://openalex.org/C81860439","wikidata":"https://www.wikidata.org/wiki/Q251212","display_name":"Internet of Things","level":2,"score":0.4841654896736145},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.48304659128189087},{"id":"https://openalex.org/C101518730","wikidata":"https://www.wikidata.org/wiki/Q930236","display_name":"Energy harvesting","level":3,"score":0.47690296173095703},{"id":"https://openalex.org/C2989466925","wikidata":"https://www.wikidata.org/wiki/Q1061197","display_name":"Radio networks","level":4,"score":0.42798662185668945},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.41408878564834595},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.40547817945480347},{"id":"https://openalex.org/C108037233","wikidata":"https://www.wikidata.org/wiki/Q11375","display_name":"Wireless network","level":3,"score":0.3547261953353882},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.3493475914001465},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.32610124349594116},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.25177523493766785},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.1491852104663849},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.07308381795883179},{"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/tvt.2018.2799947","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2018.2799947","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"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 Vehicular Technology","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.9100000262260437,"display_name":"Affordable and clean energy"}],"awards":[{"id":"https://openalex.org/G2669975680","display_name":null,"funder_award_id":"61671294","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":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":14,"referenced_works":["https://openalex.org/W1916723779","https://openalex.org/W2094000142","https://openalex.org/W2148622067","https://openalex.org/W2242946604","https://openalex.org/W2289097008","https://openalex.org/W2343823234","https://openalex.org/W2529223827","https://openalex.org/W2596324967","https://openalex.org/W2610445800","https://openalex.org/W2964129085","https://openalex.org/W3099378150","https://openalex.org/W3099804118","https://openalex.org/W3124461539","https://openalex.org/W6737452872"],"related_works":["https://openalex.org/W3030525848","https://openalex.org/W4385197910","https://openalex.org/W2340639785","https://openalex.org/W3010814398","https://openalex.org/W4385197899","https://openalex.org/W3005957545","https://openalex.org/W2076432172","https://openalex.org/W4309235375","https://openalex.org/W4394643242","https://openalex.org/W2054653072"],"abstract_inverted_index":{"Wireless":[0],"powered":[1],"communication":[2],"networks":[3,53,79],"(WPCNs),":[4],"where":[5],"multiple":[6,36,59,120,126],"energy-limited":[7],"devices":[8],"first":[9,157],"harvest":[10],"energy":[11,96,102,110,138,183],"in":[12,19,61,89,104,145,232],"the":[13,20,30,44,50,62,73,130,136,159,165,181,188,223],"downlink":[14],"and":[15,172,221],"then":[16],"transmit":[17,95],"information":[18],"uplink,":[21],"have":[22],"been":[23,40,69],"envisioned":[24],"as":[25,98,100,124,185,187],"a":[26,81,115,147,168,173],"promising":[27],"solution":[28],"for":[29,72,109,163],"future":[31],"Internet-of-Things":[32],"(IoT).":[33],"Meanwhile,":[34],"nonorthogonal":[35],"access":[37,121,127],"(NOMA)":[38],"has":[39,68],"proposed":[41],"to":[42,118],"improve":[43],"system":[45],"spectral":[46,211],"efficiency":[47],"(SE)":[48],"of":[49,58,75,84,167],"fifth-generation":[51],"(5G)":[52],"by":[54,192],"allowing":[55],"concurrent":[56],"transmissions":[57,88],"users":[60],"same":[63],"spectrum.":[64],"As":[65,114],"such,":[66],"NOMA":[67,90,144,234],"recently":[70],"considered":[71],"uplink":[74],"WPCNs":[76],"based":[77],"IoT":[78,112],"with":[80,143],"massive":[82],"number":[83],"devices.":[85,113],"However,":[86],"simultaneous":[87],"may":[91],"also":[92,208],"incur":[93],"more":[94,205],"consumption":[97,103,139,184],"well":[99,186],"circuit":[101],"practice":[105],"which":[106],"is":[107,198,209],"critical":[108],"constrained":[111],"result,":[116],"compared":[117],"orthogonal":[119],"schemes":[122],"such":[123,146],"time-division":[125],"(TDMA),":[128],"whether":[129],"SE":[131,166,190],"can":[132,140],"be":[133,141],"improved":[134],"and/or":[135],"total":[137,182],"reduced":[142],"scenario":[148],"still":[149],"remains":[150],"unknown.":[151],"To":[152],"answer":[153],"this":[154],"question,":[155],"we":[156,179],"derive":[158],"optimal":[160],"time":[161],"allocations":[162],"maximizing":[164],"TDMA-based":[169],"WPCN":[170,175],"(T-WPCN)":[171],"NOMA-based":[174],"(N-WPCN),":[176],"respectively.":[177],"Subsequently,":[178],"analyze":[180],"maximum":[189],"achieved":[191],"these":[193],"two":[194],"networks.":[195],"Surprisingly,":[196],"it":[197],"found":[199],"that":[200],"N-WPCN":[201],"not":[202],"only":[203],"consumes":[204],"energy,":[206],"but":[207],"less":[210],"efficient":[212],"than":[213],"T-WPCN.":[214],"Simulation":[215],"results":[216],"verify":[217],"our":[218],"theoretical":[219],"findings":[220],"unveil":[222],"fundamental":[224],"performance":[225],"bottleneck,":[226],"i.e.,":[227],"\u201cworst":[228],"user":[229],"bottleneck":[230],"problem\u201d,":[231],"multiuser":[233],"systems.":[235]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":9},{"year":2024,"cited_by_count":20},{"year":2023,"cited_by_count":28},{"year":2022,"cited_by_count":39},{"year":2021,"cited_by_count":42},{"year":2020,"cited_by_count":53},{"year":2019,"cited_by_count":44},{"year":2018,"cited_by_count":27},{"year":2017,"cited_by_count":1}],"updated_date":"2026-04-11T08:14:18.477133","created_date":"2025-10-10T00:00:00"}
