{"id":"https://openalex.org/W2910317539","doi":"https://doi.org/10.1109/access.2019.2892812","title":"Adaptive Downlink OFDMA System With Low-Overhead and Limited Feedback in Time-Varying Underwater Acoustic Channel","display_name":"Adaptive Downlink OFDMA System With Low-Overhead and Limited Feedback in Time-Varying Underwater Acoustic Channel","publication_year":2019,"publication_date":"2019-01-01","ids":{"openalex":"https://openalex.org/W2910317539","doi":"https://doi.org/10.1109/access.2019.2892812","mag":"2910317539"},"language":"en","primary_location":{"id":"doi:10.1109/access.2019.2892812","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2892812","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08617689.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08617689.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5030773043","display_name":"Gang Qiao","orcid":"https://orcid.org/0000-0002-4767-0015"},"institutions":[{"id":"https://openalex.org/I151727225","display_name":"Harbin Engineering University","ror":"https://ror.org/03x80pn82","country_code":"CN","type":"education","lineage":["https://openalex.org/I151727225"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Gang Qiao","raw_affiliation_strings":["College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin, China"],"affiliations":[{"raw_affiliation_string":"College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin, China","institution_ids":["https://openalex.org/I151727225"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076445808","display_name":"Lei Liu","orcid":"https://orcid.org/0000-0001-8907-8741"},"institutions":[{"id":"https://openalex.org/I151727225","display_name":"Harbin Engineering University","ror":"https://ror.org/03x80pn82","country_code":"CN","type":"education","lineage":["https://openalex.org/I151727225"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lei Liu","raw_affiliation_strings":["College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin, China"],"affiliations":[{"raw_affiliation_string":"College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin, China","institution_ids":["https://openalex.org/I151727225"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5084940528","display_name":"Lu Ma","orcid":"https://orcid.org/0000-0003-0541-3173"},"institutions":[{"id":"https://openalex.org/I151727225","display_name":"Harbin Engineering University","ror":"https://ror.org/03x80pn82","country_code":"CN","type":"education","lineage":["https://openalex.org/I151727225"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lu Ma","raw_affiliation_strings":["College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin, China"],"affiliations":[{"raw_affiliation_string":"College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin, China","institution_ids":["https://openalex.org/I151727225"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100549512","display_name":"Yanling Yin","orcid":null},"institutions":[{"id":"https://openalex.org/I169572211","display_name":"Northeast Agricultural University","ror":"https://ror.org/0515nd386","country_code":"CN","type":"education","lineage":["https://openalex.org/I169572211"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yanling Yin","raw_affiliation_strings":["College of Electrical and Information, Northeast Agricultural University, Harbin, China"],"affiliations":[{"raw_affiliation_string":"College of Electrical and Information, Northeast Agricultural University, Harbin, China","institution_ids":["https://openalex.org/I169572211"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5030773043"],"corresponding_institution_ids":["https://openalex.org/I151727225"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":1.9748,"has_fulltext":true,"cited_by_count":23,"citation_normalized_percentile":{"value":0.84355883,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":98},"biblio":{"volume":"7","issue":null,"first_page":"12729","last_page":"12741"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11192","display_name":"Underwater Vehicles and Communication Systems","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T11192","display_name":"Underwater Vehicles and Communication Systems","score":1.0,"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"}},{"id":"https://openalex.org/T11392","display_name":"Energy Harvesting in Wireless Networks","score":0.9980999827384949,"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":0.992900013923645,"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/telecommunications-link","display_name":"Telecommunications link","score":0.7357004284858704},{"id":"https://openalex.org/keywords/underwater-acoustic-communication","display_name":"Underwater acoustic communication","score":0.7142428159713745},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6800018548965454},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.6260842084884644},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.5986456274986267},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5939138531684875},{"id":"https://openalex.org/keywords/underwater","display_name":"Underwater","score":0.5301569104194641},{"id":"https://openalex.org/keywords/frequency-division-multiple-access","display_name":"Frequency-division multiple access","score":0.5136863589286804},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.40893495082855225},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3312832713127136},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.32479000091552734},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.11772963404655457},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.061670154333114624}],"concepts":[{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7357004284858704},{"id":"https://openalex.org/C169111936","wikidata":"https://www.wikidata.org/wiki/Q424098","display_name":"Underwater acoustic communication","level":3,"score":0.7142428159713745},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6800018548965454},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.6260842084884644},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.5986456274986267},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5939138531684875},{"id":"https://openalex.org/C98083399","wikidata":"https://www.wikidata.org/wiki/Q3246517","display_name":"Underwater","level":2,"score":0.5301569104194641},{"id":"https://openalex.org/C2776208322","wikidata":"https://www.wikidata.org/wiki/Q844071","display_name":"Frequency-division multiple access","level":4,"score":0.5136863589286804},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.40893495082855225},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3312832713127136},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.32479000091552734},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.11772963404655457},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.061670154333114624},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2019.2892812","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2892812","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08617689.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:1408c3fb51fe4e6a8ec7a53b1f4d8d8f","is_oa":true,"landing_page_url":"https://doaj.org/article/1408c3fb51fe4e6a8ec7a53b1f4d8d8f","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 7, Pp 12729-12741 (2019)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2019.2892812","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2892812","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08617689.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Life below water","score":0.8600000143051147,"id":"https://metadata.un.org/sdg/14"}],"awards":[{"id":"https://openalex.org/G1023919524","display_name":null,"funder_award_id":", Grant","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G1231421488","display_name":null,"funder_award_id":"under","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G2087396116","display_name":null,"funder_award_id":"China","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3317480652","display_name":null,"funder_award_id":"Science","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G391238517","display_name":null,"funder_award_id":", and","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G4814371395","display_name":null,"funder_award_id":"61601137","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5994120800","display_name":null,"funder_award_id":"Natural","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7341165206","display_name":null,"funder_award_id":"61601136","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G930603676","display_name":null,"funder_award_id":"61431004","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":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2910317539.pdf","grobid_xml":"https://content.openalex.org/works/W2910317539.grobid-xml"},"referenced_works_count":35,"referenced_works":["https://openalex.org/W1534562132","https://openalex.org/W1971953009","https://openalex.org/W2003401048","https://openalex.org/W2004686860","https://openalex.org/W2006518148","https://openalex.org/W2014724694","https://openalex.org/W2020645758","https://openalex.org/W2021695519","https://openalex.org/W2024977294","https://openalex.org/W2025224467","https://openalex.org/W2029023116","https://openalex.org/W2039960435","https://openalex.org/W2045311350","https://openalex.org/W2052336428","https://openalex.org/W2078220650","https://openalex.org/W2102634830","https://openalex.org/W2121921168","https://openalex.org/W2125946442","https://openalex.org/W2131033700","https://openalex.org/W2131665779","https://openalex.org/W2137760878","https://openalex.org/W2141902156","https://openalex.org/W2148046401","https://openalex.org/W2156408736","https://openalex.org/W2173117036","https://openalex.org/W2391889000","https://openalex.org/W2525119705","https://openalex.org/W2550131768","https://openalex.org/W2776651178","https://openalex.org/W2903860089","https://openalex.org/W3117402413","https://openalex.org/W4252321683","https://openalex.org/W6632117666","https://openalex.org/W6657674011","https://openalex.org/W6711589566"],"related_works":["https://openalex.org/W3081304190","https://openalex.org/W2477841276","https://openalex.org/W1989468614","https://openalex.org/W46613192","https://openalex.org/W4225540233","https://openalex.org/W2556643280","https://openalex.org/W2185568765","https://openalex.org/W2353494610","https://openalex.org/W4285703999","https://openalex.org/W2377549781"],"abstract_inverted_index":{"Because":[0],"of":[1,32,107],"the":[2,6,30,39,46,83,93,150,154,163,190,194,202],"time-varying":[3,62,232],"characteristic":[4],"and":[5,49,58,79,99,145,176,193],"large":[7,118],"propagation":[8,119],"delay":[9],"in":[10,18,61,88,114,153,235],"underwater":[11],"acoustic":[12],"(UWA)":[13],"channel,":[14],"adaptive":[15,52],"resource":[16],"allocation":[17],"UWA":[19,63,115],"orthogonal":[20],"frequency-division":[21],"multiplexing":[22],"access":[23],"(OFDMA)":[24],"system":[25,55],"cannot":[26],"be":[27],"performed":[28],"with":[29,56,117],"assumption":[31],"perfect":[33],"channel":[34,73,95,116,128,208,233],"state":[35],"information":[36],"(CSI)":[37],"at":[38],"transmitter.":[40],"Therefore,":[41],"this":[42],"paper":[43],"focuses":[44],"on":[45,127,167,215],"outdated":[47,108],"CSI":[48,112,123,136,144,147,164,204,211,226,229],"proposes":[50],"an":[51],"downlink":[53],"OFDMA":[54],"low-overhead":[57],"limited":[59],"feedback":[60,113,139,191],"channel.":[64],"First,":[65],"a":[66,122],"data":[67,168],"fitting":[68,169],"method":[69,87,125,170,213],"is":[70,133,140,187,197,205],"proposed":[71],"for":[72,110,138,207],"reconstruction,":[74],"which":[75,199],"shows":[76],"better":[77,219],"performance":[78,220],"lower":[80,172],"overhead":[81,178],"than":[82,179,221],"traditional":[84,180],"group":[85,181],"quantization":[86,182],"simulations.":[89],"Second,":[90],"we":[91],"define":[92],"per-subcarrier":[94],"temporal":[96],"correlation":[97,129],"(PSCTC)":[98],"long-term":[100,195],"statistical":[101],"mean":[102],"value":[103],"as":[104],"two":[105],"indicators":[106],"CSI,":[109],"optimizing":[111],"delay.":[120],"Finally,":[121],"selection":[124,212],"based":[126,166,214],"attenuation":[130],"(CCA)":[131],"factor":[132,152,217],"proposed,":[134],"where":[135],"used":[137],"selected":[141],"between":[142],"outdated-instantaneous":[143,225],"outdated-average":[146,203,228],"according":[148],"to":[149,189],"CCA":[151,216],"current":[155],"observation":[156],"period.":[157],"Sea":[158],"trail":[159],"results":[160],"show":[161],"that":[162,201,222],"reconstruction":[165],"has":[171,218],"bit":[173],"error":[174],"ratio":[175],"less":[177],"method.":[183],"The":[184,210],"PSCTC":[185],"coefficient":[186],"related":[188],"delay,":[192],"statistics":[196],"stationary,":[198],"means":[200],"suitable":[206],"feedback.":[209],"only":[223],"uses":[224],"or":[227],"under":[230],"different":[231],"conditions":[234],"experimental":[236],"results.":[237]},"counts_by_year":[{"year":2025,"cited_by_count":5},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":2}],"updated_date":"2026-03-18T14:38:29.013473","created_date":"2025-10-10T00:00:00"}
