{"id":"https://openalex.org/W4296425705","doi":"https://doi.org/10.1109/twc.2022.3206332","title":"Active IRS Aided Multiple Access for Energy-Constrained IoT Systems","display_name":"Active IRS Aided Multiple Access for Energy-Constrained IoT Systems","publication_year":2022,"publication_date":"2022-09-20","ids":{"openalex":"https://openalex.org/W4296425705","doi":"https://doi.org/10.1109/twc.2022.3206332"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2022.3206332","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2022.3206332","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"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 Wireless 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/A5103217452","display_name":"Guangji Chen","orcid":"https://orcid.org/0000-0001-9654-3242"},"institutions":[{"id":"https://openalex.org/I204512498","display_name":"University of Macau","ror":"https://ror.org/01r4q9n85","country_code":"MO","type":"education","lineage":["https://openalex.org/I204512498"]},{"id":"https://openalex.org/I6469544","display_name":"City University of Macau","ror":"https://ror.org/04gpd4q15","country_code":"MO","type":"education","lineage":["https://openalex.org/I6469544"]}],"countries":["MO"],"is_corresponding":false,"raw_author_name":"Guangji Chen","raw_affiliation_strings":["State Key Laboratory of Internet of Things for Smart City, University of Macau, Macau, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Internet of Things for Smart City, University of Macau, Macau, China","institution_ids":["https://openalex.org/I204512498","https://openalex.org/I6469544"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5048817096","display_name":"Qingqing Wu","orcid":"https://orcid.org/0000-0002-0043-3266"},"institutions":[{"id":"https://openalex.org/I204512498","display_name":"University of Macau","ror":"https://ror.org/01r4q9n85","country_code":"MO","type":"education","lineage":["https://openalex.org/I204512498"]},{"id":"https://openalex.org/I6469544","display_name":"City University of Macau","ror":"https://ror.org/04gpd4q15","country_code":"MO","type":"education","lineage":["https://openalex.org/I6469544"]}],"countries":["MO"],"is_corresponding":false,"raw_author_name":"Qingqing Wu","raw_affiliation_strings":["State Key Laboratory of Internet of Things for Smart City, University of Macau, Macau, China"],"raw_orcid":"https://orcid.org/0000-0002-0043-3266","affiliations":[{"raw_affiliation_string":"State Key Laboratory of Internet of Things for Smart City, University of Macau, Macau, China","institution_ids":["https://openalex.org/I204512498","https://openalex.org/I6469544"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037421319","display_name":"Chong He","orcid":"https://orcid.org/0000-0002-9796-5532"},"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":"Chong He","raw_affiliation_strings":["Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China"],"raw_orcid":"https://orcid.org/0000-0002-9796-5532","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"],"raw_orcid":"https://orcid.org/0000-0003-2133-8679","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/A5089631680","display_name":"Jie Tang","orcid":"https://orcid.org/0000-0003-0619-0338"},"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":"Jie Tang","raw_affiliation_strings":["School of Electronic and Information Engineering, South China University of Technology, Guangzhou, China"],"raw_orcid":"https://orcid.org/0000-0003-0619-0338","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/A5013079905","display_name":"Shi Jin","orcid":"https://orcid.org/0000-0003-0271-6021"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shi Jin","raw_affiliation_strings":["National Mobile Communications Research Laboratory, Southeast University, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0003-0271-6021","affiliations":[{"raw_affiliation_string":"National Mobile Communications Research Laboratory, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":10.6808,"has_fulltext":false,"cited_by_count":149,"citation_normalized_percentile":{"value":0.99234424,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":100},"biblio":{"volume":"22","issue":"3","first_page":"1677","last_page":"1694"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9998999834060669,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9998999834060669,"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/T10851","display_name":"Optical Wireless Communication Technologies","score":0.9926000237464905,"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/T11192","display_name":"Underwater Vehicles and Communication Systems","score":0.977400004863739,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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/time-division-multiple-access","display_name":"Time division multiple access","score":0.8730156421661377},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.8158895969390869},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7986409664154053},{"id":"https://openalex.org/keywords/noma","display_name":"Noma","score":0.704646646976471},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.5939207077026367},{"id":"https://openalex.org/keywords/throughput","display_name":"Throughput","score":0.5806943774223328},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.5609498620033264},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.4945840537548065},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.4598906636238098},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.35547003149986267},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3036900758743286},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1881692111492157}],"concepts":[{"id":"https://openalex.org/C117313154","wikidata":"https://www.wikidata.org/wiki/Q878344","display_name":"Time division multiple access","level":2,"score":0.8730156421661377},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.8158895969390869},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7986409664154053},{"id":"https://openalex.org/C2775918612","wikidata":"https://www.wikidata.org/wiki/Q994794","display_name":"Noma","level":3,"score":0.704646646976471},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.5939207077026367},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.5806943774223328},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.5609498620033264},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.4945840537548065},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.4598906636238098},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.35547003149986267},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3036900758743286},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1881692111492157},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/twc.2022.3206332","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2022.3206332","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"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 Wireless Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.6299999952316284,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[{"id":"https://openalex.org/G3365405956","display_name":null,"funder_award_id":"62071296","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5855958859","display_name":null,"funder_award_id":"0119/2020/A3","funder_id":"https://openalex.org/F4320323893","funder_display_name":"Fundo para o Desenvolvimento das Ci\u00eancias e da Tecnologia"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320323893","display_name":"Fundo para o Desenvolvimento das Ci\u00eancias e da Tecnologia","ror":"https://ror.org/05vna4324"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":46,"referenced_works":["https://openalex.org/W2096092982","https://openalex.org/W2122744491","https://openalex.org/W2484737696","https://openalex.org/W2596636257","https://openalex.org/W2769456309","https://openalex.org/W2789703398","https://openalex.org/W2800755725","https://openalex.org/W2940785943","https://openalex.org/W2969424089","https://openalex.org/W2974312798","https://openalex.org/W2981587265","https://openalex.org/W2990747873","https://openalex.org/W2995554704","https://openalex.org/W2996961035","https://openalex.org/W3004201425","https://openalex.org/W3021225717","https://openalex.org/W3038534820","https://openalex.org/W3040433108","https://openalex.org/W3046207563","https://openalex.org/W3082278499","https://openalex.org/W3092592393","https://openalex.org/W3096513223","https://openalex.org/W3103403858","https://openalex.org/W3107731108","https://openalex.org/W3109292673","https://openalex.org/W3114917120","https://openalex.org/W3121089083","https://openalex.org/W3122751454","https://openalex.org/W3129486236","https://openalex.org/W3134746776","https://openalex.org/W3137570378","https://openalex.org/W3154878987","https://openalex.org/W3159402647","https://openalex.org/W3168169223","https://openalex.org/W3168517868","https://openalex.org/W3172200957","https://openalex.org/W3178791547","https://openalex.org/W3184496427","https://openalex.org/W3193353357","https://openalex.org/W3196114134","https://openalex.org/W3197488186","https://openalex.org/W3198612078","https://openalex.org/W3211897542","https://openalex.org/W4225737845","https://openalex.org/W4313001863","https://openalex.org/W6793488170"],"related_works":["https://openalex.org/W3030525848","https://openalex.org/W4385197910","https://openalex.org/W2340639785","https://openalex.org/W4404253608","https://openalex.org/W3010814398","https://openalex.org/W3165611029","https://openalex.org/W2370038111","https://openalex.org/W4394643242","https://openalex.org/W4286569445","https://openalex.org/W2047743558"],"abstract_inverted_index":{"In":[0],"this":[1,63],"paper,":[2],"we":[3,65,98,164,225],"investigate":[4],"the":[5,31,48,53,108,117,121,126,137,142,150,154,176,179,197,201,218,221,243,247,251,257,267,278],"fundamental":[6],"multiple":[7,35,78,83,129,262],"access":[8,40,79,84],"(MA)":[9],"scheme":[10,110,171,204,274],"in":[11,178,188,254],"an":[12,24,39,227],"active":[13,25,70,248],"intelligent":[14],"reflecting":[15],"surface":[16],"(IRS)":[17],"aided":[18,72],"energy-constrained":[19],"Internet-of-Things":[20],"(IoT)":[21],"system,":[22],"where":[23,175,234],"IRS":[26,54,71,105,130,161,212,249,253],"is":[27,45,205,237],"deployed":[28],"to":[29,38,46,135],"assist":[30],"uplink":[32],"transmission":[33],"from":[34],"IoT":[36],"devices":[37,177,187],"point":[41],"(AP).":[42],"Our":[43],"goal":[44],"maximize":[47],"sum":[49,91],"throughput":[50,92,115],"by":[51,86,159],"optimizing":[52],"beamforming":[55,106,131,162,213],"vectors":[56,132,214],"across":[57],"time":[58,76,139,193],"and":[59,81,93,153,260,265],"resource":[60],"allocation.":[61],"To":[62,144],"end,":[64],"first":[66],"study":[67],"two":[68],"typical":[69],"MA":[73,273],"schemes,":[74],"namely":[75],"division":[77],"(TDMA)":[80],"non-orthogonal":[82],"(NOMA),":[85],"analytically":[87],"comparing":[88],"their":[89],"achievable":[90],"proposing":[94],"corresponding":[95],"algorithms.":[96],"Interestingly,":[97],"prove":[99],"that":[100],"given":[101,209],"only":[102],"one":[103],"available":[104,134],"vector,":[107],"NOMA-based":[109],"generally":[111],"achieves":[112],"a":[113,146,167],"larger":[114],"than":[116],"TDMA-based":[118],"scheme,":[119],"whereas":[120],"latter":[122],"can":[123],"potentially":[124],"outperform":[125],"former":[127],"if":[128],"are":[133],"harness":[136],"favorable":[138],"selectivity":[140],"of":[141,199,211,217,220,246,256,269],"IRS.":[143],"strike":[145],"flexible":[147],"balance":[148],"between":[149],"system":[151],"performance":[152],"associated":[155],"signaling":[156],"overhead":[157],"incurred":[158],"more":[160],"vectors,":[163],"then":[165],"propose":[166,226],"general":[168],"hybrid":[169,202,272],"TDMA-NOMA":[170,203],"with":[172],"device":[173],"grouping,":[174],"same":[180],"group":[181],"transmit":[182],"simultaneously":[183],"via":[184],"NOMA":[185],"while":[186],"different":[189],"groups":[190],"occupy":[191],"orthogonal":[192],"slots.":[194],"By":[195],"controlling":[196],"number":[198,210],"groups,":[200],"applicable":[206],"for":[207,275],"any":[208],"available.":[215],"Despite":[216],"non-convexity":[219],"considered":[222],"optimization":[223],"problem,":[224],"efficient":[228],"algorithm":[229],"based":[230],"on":[231],"alternating":[232],"optimization,":[233],"each":[235],"subproblem":[236],"solved":[238],"optimally.":[239],"Simulation":[240],"results":[241],"illustrate":[242],"practical":[244],"superiorities":[245],"over":[250],"passive":[252],"terms":[255],"coverage":[258],"extension":[259],"supporting":[261],"energy-limited":[263],"devices,":[264],"demonstrate":[266],"effectiveness":[268],"our":[270],"proposed":[271],"flexibly":[276],"balancing":[277],"performance-cost":[279],"tradeoff.":[280]},"counts_by_year":[{"year":2026,"cited_by_count":6},{"year":2025,"cited_by_count":28},{"year":2024,"cited_by_count":76},{"year":2023,"cited_by_count":32},{"year":2022,"cited_by_count":7}],"updated_date":"2026-08-08T07:41:36.138363","created_date":"2025-10-10T00:00:00"}