{"id":"https://openalex.org/W3180005997","doi":"https://doi.org/10.1109/pimrc50174.2021.9569694","title":"Untrained DNN for Channel Estimation of RIS-Assisted Multi-User OFDM System with Hardware Impairments","display_name":"Untrained DNN for Channel Estimation of RIS-Assisted Multi-User OFDM System with Hardware Impairments","publication_year":2021,"publication_date":"2021-09-13","ids":{"openalex":"https://openalex.org/W3180005997","doi":"https://doi.org/10.1109/pimrc50174.2021.9569694","mag":"3180005997"},"language":"en","primary_location":{"id":"doi:10.1109/pimrc50174.2021.9569694","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc50174.2021.9569694","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","raw_type":"proceedings-article"},"type":"preprint","indexed_in":["arxiv","crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2107.07423","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5048719277","display_name":"Nipuni Ginige","orcid":"https://orcid.org/0000-0001-8622-2226"},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":true,"raw_author_name":"Nipuni Ginige","raw_affiliation_strings":["Center for Wireless Communications, University of Oulu, Finland","[University Of Oulu Center For Wireless Communications, Finland]"],"affiliations":[{"raw_affiliation_string":"Center for Wireless Communications, University of Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]},{"raw_affiliation_string":"[University Of Oulu Center For Wireless Communications, Finland]","institution_ids":["https://openalex.org/I98381234"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031630524","display_name":"K. B. Shashika Manosha","orcid":null},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"K. B. Shashika Manosha","raw_affiliation_strings":["Center for Wireless Communications, University of Oulu, Finland","[University Of Oulu Center For Wireless Communications, Finland]"],"affiliations":[{"raw_affiliation_string":"Center for Wireless Communications, University of Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]},{"raw_affiliation_string":"[University Of Oulu Center For Wireless Communications, Finland]","institution_ids":["https://openalex.org/I98381234"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5009064777","display_name":"Nandana Rajatheva","orcid":"https://orcid.org/0000-0002-7029-5583"},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Nandana Rajatheva","raw_affiliation_strings":["Center for Wireless Communications, University of Oulu, Finland","[University Of Oulu Center For Wireless Communications, Finland]"],"affiliations":[{"raw_affiliation_string":"Center for Wireless Communications, University of Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]},{"raw_affiliation_string":"[University Of Oulu Center For Wireless Communications, Finland]","institution_ids":["https://openalex.org/I98381234"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5035872239","display_name":"Matti Latva\u2010aho","orcid":"https://orcid.org/0000-0002-6261-0969"},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Matti Latva-aho","raw_affiliation_strings":["Center for Wireless Communications, University of Oulu, Finland","[University Of Oulu Center For Wireless Communications, Finland]"],"affiliations":[{"raw_affiliation_string":"Center for Wireless Communications, University of Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]},{"raw_affiliation_string":"[University Of Oulu Center For Wireless Communications, Finland]","institution_ids":["https://openalex.org/I98381234"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5048719277"],"corresponding_institution_ids":["https://openalex.org/I98381234"],"apc_list":null,"apc_paid":null,"fwci":0.2032,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.50567947,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"561","last_page":"566"},"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/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9726999998092651,"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":0.9527999758720398,"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/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.7691848874092102},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.7373015284538269},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.7185367345809937},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6972108483314514},{"id":"https://openalex.org/keywords/transceiver","display_name":"Transceiver","score":0.6357651948928833},{"id":"https://openalex.org/keywords/multiplexing","display_name":"Multiplexing","score":0.49606284499168396},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.4832537770271301},{"id":"https://openalex.org/keywords/artificial-neural-network","display_name":"Artificial neural network","score":0.4624379575252533},{"id":"https://openalex.org/keywords/computer-hardware","display_name":"Computer hardware","score":0.43661171197891235},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3531808853149414},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3405363857746124},{"id":"https://openalex.org/keywords/computer-engineering","display_name":"Computer engineering","score":0.33739134669303894},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.17463341355323792},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.15803569555282593},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.1197599470615387},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1036766767501831}],"concepts":[{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.7691848874092102},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.7373015284538269},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.7185367345809937},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6972108483314514},{"id":"https://openalex.org/C7720470","wikidata":"https://www.wikidata.org/wiki/Q954187","display_name":"Transceiver","level":3,"score":0.6357651948928833},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.49606284499168396},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.4832537770271301},{"id":"https://openalex.org/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.4624379575252533},{"id":"https://openalex.org/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.43661171197891235},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3531808853149414},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3405363857746124},{"id":"https://openalex.org/C113775141","wikidata":"https://www.wikidata.org/wiki/Q428691","display_name":"Computer engineering","level":1,"score":0.33739134669303894},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.17463341355323792},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.15803569555282593},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.1197599470615387},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1036766767501831},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1109/pimrc50174.2021.9569694","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc50174.2021.9569694","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)","raw_type":"proceedings-article"},{"id":"pmh:oai:arXiv.org:2107.07423","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2107.07423","pdf_url":"https://arxiv.org/pdf/2107.07423","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"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":"text"},{"id":"mag:3180005997","is_oa":true,"landing_page_url":"http://export.arxiv.org/pdf/2107.07423","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"arXiv (Cornell University)","raw_type":null},{"id":"doi:10.48550/arxiv.2107.07423","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2107.07423","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"article"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2107.07423","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2107.07423","pdf_url":"https://arxiv.org/pdf/2107.07423","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"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":"text"},"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9","score":0.4699999988079071}],"awards":[],"funders":[{"id":"https://openalex.org/F4320321108","display_name":"Academy of Finland","ror":"https://ror.org/05k73zm37"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W2898001268","https://openalex.org/W2937693915","https://openalex.org/W2964013315","https://openalex.org/W2971912794","https://openalex.org/W2997109520","https://openalex.org/W3003686880","https://openalex.org/W3010695123","https://openalex.org/W3011747750","https://openalex.org/W3084194173","https://openalex.org/W3100218246","https://openalex.org/W3105487862","https://openalex.org/W3117633996","https://openalex.org/W3126395846","https://openalex.org/W3129486236","https://openalex.org/W3134690199","https://openalex.org/W6755694737","https://openalex.org/W6780392931","https://openalex.org/W6789964647"],"related_works":["https://openalex.org/W3210194639","https://openalex.org/W3161917428","https://openalex.org/W3208079578","https://openalex.org/W3191133991","https://openalex.org/W1496854431","https://openalex.org/W2964198392","https://openalex.org/W3010528092","https://openalex.org/W2997001852","https://openalex.org/W2321058529","https://openalex.org/W2787276281","https://openalex.org/W2614030410","https://openalex.org/W3205647423","https://openalex.org/W2516497201","https://openalex.org/W3174984656","https://openalex.org/W2018149238","https://openalex.org/W2344114813","https://openalex.org/W2419723992","https://openalex.org/W2811080613","https://openalex.org/W3120336015","https://openalex.org/W2997842110"],"abstract_inverted_index":{"Reconfigurable":[0],"intelligent":[1],"surface":[2],"(RIS)":[3],"is":[4,23,38,130],"an":[5,65],"emerging":[6],"technology":[7],"for":[8,48],"improving":[9],"performance":[10,110],"in":[11,111],"fifth-generation":[12],"(5G)":[13],"and":[14,95,115,142],"beyond":[15],"networks.":[16],"Practically":[17],"channel":[18,46,83],"estimation":[19,94],"of":[20,30,35,84,113],"RIS-assisted":[21,50],"systems":[22],"challenging":[24],"due":[25],"to":[26,39,79,119,132],"the":[27,31,49,73,81,85,89,127,136,140],"passive":[28],"nature":[29],"RIS.":[32,143],"The":[33],"purpose":[34],"this":[36],"paper":[37],"introduce":[40],"a":[41,97],"deep":[42,67,74],"learning-based,":[43],"low":[44,116],"complexity":[45,117],"estimator":[47,129],"multi-user":[51],"single-input-multiple-output":[52],"(SIMO)":[53],"orthogonal":[54],"frequency":[55],"division":[56],"multiplexing":[57],"(OFDM)":[58],"system":[59,86],"with":[60],"hardware":[61,137],"impairments.":[62],"We":[63,101],"propose":[64],"untrained":[66],"neural":[68],"network":[69,78],"(DNN)":[70],"based":[71],"on":[72],"image":[75],"prior":[76],"(DIP)":[77],"denoise":[80],"effective":[82],"obtained":[87],"from":[88],"conventional":[90,120],"pilot-based":[91],"least-square":[92],"(LS)":[93],"acquire":[96],"more":[98],"accurate":[99],"estimation.":[100],"have":[102,124],"shown":[103,125],"that":[104,126],"our":[105],"proposed":[106,128],"method":[107],"has":[108],"high":[109],"terms":[112],"accuracy":[114],"compared":[118],"methods.":[121],"Further,":[122],"we":[123],"robust":[131],"interference":[133],"caused":[134],"by":[135],"impairments":[138],"at":[139],"transceiver":[141]},"counts_by_year":[{"year":2023,"cited_by_count":2}],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2022-07-25T00:00:00"}
