{"id":"https://openalex.org/W4385800784","doi":"https://doi.org/10.1109/vtc2023-spring57618.2023.10200111","title":"Optimal Antenna Selection and Time Sharing in RF-Powered Cognitive Networks With Ambient Backscatter Communication","display_name":"Optimal Antenna Selection and Time Sharing in RF-Powered Cognitive Networks With Ambient Backscatter Communication","publication_year":2023,"publication_date":"2023-06-01","ids":{"openalex":"https://openalex.org/W4385800784","doi":"https://doi.org/10.1109/vtc2023-spring57618.2023.10200111"},"language":"en","primary_location":{"id":"doi:10.1109/vtc2023-spring57618.2023.10200111","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vtc2023-spring57618.2023.10200111","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2023 IEEE 97th Vehicular Technology Conference (VTC2023-Spring)","raw_type":"proceedings-article"},"type":"conference-paper","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/A5100378301","display_name":"Wenjing Liu","orcid":"https://orcid.org/0000-0002-9544-3845"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]},{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Wenjing Liu","raw_affiliation_strings":["The Hong Kong University of Science and Technology,Dept. of ECE,Hong Kong","Dept. of ECE, The Hong Kong University of Science and Technology, Hong Kong"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The Hong Kong University of Science and Technology,Dept. of ECE,Hong Kong","institution_ids":["https://openalex.org/I200769079","https://openalex.org/I889458895"]},{"raw_affiliation_string":"Dept. of ECE, The Hong Kong University of Science and Technology, Hong Kong","institution_ids":["https://openalex.org/I200769079"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015890986","display_name":"Shanpu Shen","orcid":"https://orcid.org/0000-0001-8487-2903"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]},{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Shanpu Shen","raw_affiliation_strings":["The Hong Kong University of Science and Technology,Dept. of ECE,Hong Kong","Dept. of ECE, The Hong Kong University of Science and Technology, Hong Kong"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The Hong Kong University of Science and Technology,Dept. of ECE,Hong Kong","institution_ids":["https://openalex.org/I200769079","https://openalex.org/I889458895"]},{"raw_affiliation_string":"Dept. of ECE, The Hong Kong University of Science and Technology, Hong Kong","institution_ids":["https://openalex.org/I200769079"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060371153","display_name":"Chi Zhang","orcid":"https://orcid.org/0000-0003-3648-5882"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]},{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Chi Zhang","raw_affiliation_strings":["The Hong Kong University of Science and Technology,Dept. of ECE,Hong Kong","Dept. of ECE, The Hong Kong University of Science and Technology, Hong Kong"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The Hong Kong University of Science and Technology,Dept. of ECE,Hong Kong","institution_ids":["https://openalex.org/I200769079","https://openalex.org/I889458895"]},{"raw_affiliation_string":"Dept. of ECE, The Hong Kong University of Science and Technology, Hong Kong","institution_ids":["https://openalex.org/I200769079"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040138091","display_name":"Danny H. K. Tsang","orcid":"https://orcid.org/0000-0003-0135-7098"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]},{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Danny H. K. Tsang","raw_affiliation_strings":["The Hong Kong University of Science and Technology,Dept. of ECE,Hong Kong","Dept. of ECE, The Hong Kong University of Science and Technology, Hong Kong","IoT Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangdong, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The Hong Kong University of Science and Technology,Dept. of ECE,Hong Kong","institution_ids":["https://openalex.org/I200769079","https://openalex.org/I889458895"]},{"raw_affiliation_string":"Dept. of ECE, The Hong Kong University of Science and Technology, Hong Kong","institution_ids":["https://openalex.org/I200769079"]},{"raw_affiliation_string":"IoT Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangdong, China","institution_ids":["https://openalex.org/I200769079","https://openalex.org/I889458895"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5004541948","display_name":"Ross Murch","orcid":"https://orcid.org/0000-0002-2527-7693"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]},{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Ross Murch","raw_affiliation_strings":["The Hong Kong University of Science and Technology,Dept. of ECE,Hong Kong","Dept. of ECE, The Hong Kong University of Science and Technology, Hong Kong"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The Hong Kong University of Science and Technology,Dept. of ECE,Hong Kong","institution_ids":["https://openalex.org/I200769079","https://openalex.org/I889458895"]},{"raw_affiliation_string":"Dept. of ECE, The Hong Kong University of Science and Technology, Hong Kong","institution_ids":["https://openalex.org/I200769079"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"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":0.9986000061035156,"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/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","score":0.9986000061035156,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.7197900414466858},{"id":"https://openalex.org/keywords/backscatter","display_name":"Backscatter (email)","score":0.714850664138794},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7129702568054199},{"id":"https://openalex.org/keywords/cognitive-radio","display_name":"Cognitive radio","score":0.7058247923851013},{"id":"https://openalex.org/keywords/radio-frequency","display_name":"Radio frequency","score":0.6821057200431824},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.5576618313789368},{"id":"https://openalex.org/keywords/energy-harvesting","display_name":"Energy harvesting","score":0.47905099391937256},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.45487603545188904},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.4545721709728241},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.4129626750946045},{"id":"https://openalex.org/keywords/energy","display_name":"Energy (signal processing)","score":0.37991631031036377},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.35164758563041687},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.35132282972335815},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.33009129762649536},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.31259211897850037},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1051572859287262}],"concepts":[{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.7197900414466858},{"id":"https://openalex.org/C30354325","wikidata":"https://www.wikidata.org/wiki/Q204667","display_name":"Backscatter (email)","level":3,"score":0.714850664138794},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7129702568054199},{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.7058247923851013},{"id":"https://openalex.org/C74064498","wikidata":"https://www.wikidata.org/wiki/Q3396184","display_name":"Radio frequency","level":2,"score":0.6821057200431824},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.5576618313789368},{"id":"https://openalex.org/C101518730","wikidata":"https://www.wikidata.org/wiki/Q930236","display_name":"Energy harvesting","level":3,"score":0.47905099391937256},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.45487603545188904},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.4545721709728241},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4129626750946045},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.37991631031036377},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.35164758563041687},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.35132282972335815},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.33009129762649536},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.31259211897850037},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1051572859287262},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/vtc2023-spring57618.2023.10200111","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vtc2023-spring57618.2023.10200111","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2023 IEEE 97th Vehicular Technology Conference (VTC2023-Spring)","raw_type":"proceedings-article"},{"id":"pmh:oai:repository.hkust.edu.hk:1783.1-127895","is_oa":false,"landing_page_url":"http://repository.hkust.edu.hk/ir/Record/1783.1-127895","pdf_url":null,"source":{"id":"https://openalex.org/S4306401796","display_name":"Rare & Special e-Zone (The Hong Kong University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I200769079","host_organization_name":"Hong Kong University of Science and Technology","host_organization_lineage":["https://openalex.org/I200769079"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Conference paper"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.8999999761581421}],"awards":[],"funders":[{"id":"https://openalex.org/F4320335480","display_name":"Guangzhou Municipal Science and Technology Project","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W1682880250","https://openalex.org/W1916723779","https://openalex.org/W1973556623","https://openalex.org/W2067040941","https://openalex.org/W2122489958","https://openalex.org/W2621181593","https://openalex.org/W2742125438","https://openalex.org/W2765202988","https://openalex.org/W2794694461","https://openalex.org/W2890053410","https://openalex.org/W2891666821","https://openalex.org/W2912074258","https://openalex.org/W3085912876","https://openalex.org/W3098222389","https://openalex.org/W4242781462","https://openalex.org/W4323540186"],"related_works":["https://openalex.org/W2559261346","https://openalex.org/W4280609833","https://openalex.org/W1973979964","https://openalex.org/W4235820682","https://openalex.org/W185479762","https://openalex.org/W2136943174","https://openalex.org/W2791994394","https://openalex.org/W2584021408","https://openalex.org/W4296935286","https://openalex.org/W2087560913"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3],"propose":[4,99],"a":[5,70,100],"new":[6],"solution":[7],"to":[8,111,142],"improve":[9],"the":[10,30,42,49,58,85,90,113,118,122,133,137],"achievable":[11,50],"rate":[12,51,120],"of":[13,121],"radio":[14,19],"frequency":[15],"(RF)":[16],"powered":[17],"cognitive":[18],"networks":[20],"(CRNs)":[21],"with":[22,28,53],"ambient":[23,39,138],"backscatter":[24,38,139],"communication":[25],"(AmBC).":[26],"Assisted":[27],"AmBC,":[29],"secondary":[31],"transmitter":[32],"(ST)":[33],"can":[34,79],"harvest":[35],"energy":[36,81],"and":[37,83,94,98,102,136],"signals":[40],"when":[41],"primary":[43],"channel":[44],"is":[45],"busy,":[46],"which":[47],"enhances":[48],"compared":[52],"conventional":[54],"RF-powered":[55,66],"CRNs":[56],"adopting":[57],"harvest-then-transmit":[59],"(HTT)":[60],"protocol.":[61],"Our":[62],"work":[63],"proposes":[64],"an":[65],"CRN":[67],"that":[68,116,127],"uses":[69],"multi-antenna":[71],"ST":[72,78],"since":[73],"implementing":[74],"multiple":[75],"antennas":[76],"on":[77],"enhance":[80],"harvesting":[82],"increase":[84],"data":[86,119],"rate.":[87],"We":[88],"discuss":[89],"corresponding":[91],"time":[92],"sharing":[93],"antenna":[95],"selection":[96],"tradeoffs":[97],"low-complexity":[101],"time-efficient":[103],"block":[104],"coordinate":[105],"descent":[106],"(BCD)-assisted":[107],"exhaustive":[108],"search":[109],"algorithm":[110],"find":[112],"optimal":[114],"tradeoff":[115],"maximizes":[117],"system.":[123],"Simulation":[124],"results":[125],"show":[126],"our":[128],"proposed":[129],"scheme":[130],"outperforms":[131],"both":[132],"HTT":[134],"mode":[135],"technique,":[140],"leading":[141],"improved":[143],"overall":[144],"system":[145],"performance.":[146]},"counts_by_year":[],"updated_date":"2026-07-20T07:56:41.581041","created_date":"2025-10-10T00:00:00"}