{"id":"https://openalex.org/W4406449563","doi":"https://doi.org/10.1109/twc.2026.3692586","title":"Decision Transformers for RIS-Assisted Systems With Diffusion Model-Based Channel Acquisition","display_name":"Decision Transformers for RIS-Assisted Systems With Diffusion Model-Based Channel Acquisition","publication_year":2026,"publication_date":"2026-01-01","ids":{"openalex":"https://openalex.org/W4406449563","doi":"https://doi.org/10.1109/twc.2026.3692586"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2026.3692586","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2026.3692586","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":["arxiv","crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2501.08007","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5027383990","display_name":"Jie Zhang","orcid":"https://orcid.org/0000-0002-9315-7407"},"institutions":[{"id":"https://openalex.org/I36399199","display_name":"Nanjing University of Science and Technology","ror":"https://ror.org/00xp9wg62","country_code":"CN","type":"education","lineage":["https://openalex.org/I36399199"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jie Zhang","raw_affiliation_strings":["School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0002-2113-2964","affiliations":[{"raw_affiliation_string":"School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, China","institution_ids":["https://openalex.org/I36399199"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5068307922","display_name":"Yiyang Ni","orcid":"https://orcid.org/0000-0001-5893-6854"},"institutions":[{"id":"https://openalex.org/I235331625","display_name":"Jiangsu Second Normal University","ror":"https://ror.org/00e6ytg41","country_code":"CN","type":"education","lineage":["https://openalex.org/I235331625"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yiyang Ni","raw_affiliation_strings":["Institute of Artificial Intelligence Research, Jiangsu Second Normal University, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0001-5893-6854","affiliations":[{"raw_affiliation_string":"Institute of Artificial Intelligence Research, Jiangsu Second Normal University, Nanjing, China","institution_ids":["https://openalex.org/I235331625"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100361975","display_name":"Jun Li","orcid":"https://orcid.org/0000-0002-8937-3991"},"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":"Jun Li","raw_affiliation_strings":["School of Information Science and Engineering, Southeast University, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0002-6239-2922","affiliations":[{"raw_affiliation_string":"School of Information Science and Engineering, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103217452","display_name":"Guangji Chen","orcid":"https://orcid.org/0000-0001-9654-3242"},"institutions":[{"id":"https://openalex.org/I36399199","display_name":"Nanjing University of Science and Technology","ror":"https://ror.org/00xp9wg62","country_code":"CN","type":"education","lineage":["https://openalex.org/I36399199"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Guangji Chen","raw_affiliation_strings":["School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, China"],"raw_orcid":"https://orcid.org/0009-0005-4423-8752","affiliations":[{"raw_affiliation_string":"School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, China","institution_ids":["https://openalex.org/I36399199"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100775481","display_name":"Zhe Wang","orcid":"https://orcid.org/0000-0002-2231-1606"},"institutions":[{"id":"https://openalex.org/I36399199","display_name":"Nanjing University of Science and Technology","ror":"https://ror.org/00xp9wg62","country_code":"CN","type":"education","lineage":["https://openalex.org/I36399199"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhe Wang","raw_affiliation_strings":["School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0001-9727-5569","affiliations":[{"raw_affiliation_string":"School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing, China","institution_ids":["https://openalex.org/I36399199"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018640082","display_name":"Long Shi","orcid":"https://orcid.org/0000-0002-4909-4349"},"institutions":[{"id":"https://openalex.org/I36399199","display_name":"Nanjing University of Science and Technology","ror":"https://ror.org/00xp9wg62","country_code":"CN","type":"education","lineage":["https://openalex.org/I36399199"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Long Shi","raw_affiliation_strings":["School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0001-6124-5173","affiliations":[{"raw_affiliation_string":"School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, China","institution_ids":["https://openalex.org/I36399199"]}]},{"author_position":"middle","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":["School of Information Science and Engineering, Southeast University, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0003-0271-6021","affiliations":[{"raw_affiliation_string":"School of Information Science and Engineering, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103777796","display_name":"Wen Chen","orcid":"https://orcid.org/0000-0002-8304-1590"},"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":"last","author":{"id":"https://openalex.org/A5042307561","display_name":"H. Vincent Poor","orcid":"https://orcid.org/0000-0002-2062-131X"},"institutions":[{"id":"https://openalex.org/I20089843","display_name":"Princeton University","ror":"https://ror.org/00hx57361","country_code":"US","type":"education","lineage":["https://openalex.org/I20089843"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"H. Vincent Poor","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Princeton University, Princeton, NJ, USA"],"raw_orcid":"https://orcid.org/0000-0002-2062-131X","affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Princeton University, Princeton, NJ, USA","institution_ids":["https://openalex.org/I20089843"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":5.6113,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":{"value":0.90756778,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":"25","issue":null,"first_page":"17542","last_page":"17558"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10876","display_name":"Fault Detection and Control Systems","score":0.47040000557899475,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T10876","display_name":"Fault Detection and Control Systems","score":0.47040000557899475,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/computer-science","display_name":"Computer science","score":0.4860728085041046},{"id":"https://openalex.org/keywords/decision-system","display_name":"Decision system","score":0.42868342995643616},{"id":"https://openalex.org/keywords/transformer","display_name":"Transformer","score":0.4254091680049896},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.23974856734275818},{"id":"https://openalex.org/keywords/operations-research","display_name":"Operations research","score":0.21665534377098083},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.2093348503112793}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4860728085041046},{"id":"https://openalex.org/C2986909951","wikidata":"https://www.wikidata.org/wiki/Q330268","display_name":"Decision system","level":2,"score":0.42868342995643616},{"id":"https://openalex.org/C66322947","wikidata":"https://www.wikidata.org/wiki/Q11658","display_name":"Transformer","level":3,"score":0.4254091680049896},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.23974856734275818},{"id":"https://openalex.org/C42475967","wikidata":"https://www.wikidata.org/wiki/Q194292","display_name":"Operations research","level":1,"score":0.21665534377098083},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.2093348503112793},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/twc.2026.3692586","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2026.3692586","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"},{"id":"pmh:oai:arXiv.org:2501.08007","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2501.08007","pdf_url":"https://arxiv.org/pdf/2501.08007","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":"doi:10.48550/arxiv.2501.08007","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2501.08007","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":"Preprint"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2501.08007","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2501.08007","pdf_url":"https://arxiv.org/pdf/2501.08007","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":[],"awards":[{"id":"https://openalex.org/G2517248389","display_name":null,"funder_award_id":"62501279","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G2637521528","display_name":null,"funder_award_id":"62471204","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3007453054","display_name":null,"funder_award_id":"62531015","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3389102418","display_name":null,"funder_award_id":"BE2023022-2","funder_id":"https://openalex.org/F4320327777","funder_display_name":"Jiangsu Provincial Key Research and Development Program"},{"id":"https://openalex.org/G6573975058","display_name":null,"funder_award_id":"U25A20399","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7140901533","display_name":null,"funder_award_id":"BK20241455","funder_id":"https://openalex.org/F4320322769","funder_display_name":"Natural Science Foundation of Jiangsu Province"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320322769","display_name":"Natural Science Foundation of Jiangsu Province","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320327777","display_name":"Jiangsu Provincial Key Research and Development Program","ror":null}],"has_content":{"pdf":true,"grobid_xml":false},"content_urls":{"pdf":"https://content.openalex.org/works/W4406449563.pdf"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W4391913857","https://openalex.org/W2358668433","https://openalex.org/W4396701345","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W4396696052"],"abstract_inverted_index":{"Reconfigurable":[0],"intelligent":[1],"surfaces":[2],"(RISs)":[3],"have":[4,18],"been":[5],"recognized":[6],"as":[7],"a":[8,55,66,74,84,96,141,148],"revolutionary":[9],"technology":[10],"for":[11,79,89,109],"future":[12],"wireless":[13,122],"networks.":[14],"However,":[15],"RIS-assisted":[16],"communications":[17,184],"to":[19,34,37,139,151,156,190],"continuously":[20],"tune":[21],"phase-shifts":[22,53],"relying":[23],"on":[24,104,130,136],"accurate":[25],"channel":[26,187],"state":[27],"information":[28],"(CSI)":[29],"that":[30,163,175],"is":[31,164],"generally":[32],"difficult":[33],"obtain":[35],"due":[36],"the":[38,117,131,160],"large":[39],"number":[40],"of":[41,47,73,182],"RIS":[42,52],"channels.":[43,123],"The":[44],"joint":[45],"design":[46],"CSI":[48,81,114],"acquisition":[49,82],"and":[50,83,180],"subsection":[51],"remains":[54],"significant":[56],"challenge":[57],"in":[58,121,166],"dynamic":[59],"environments.":[60],"In":[61],"this":[62],"paper,":[63],"we":[64,93,125,146],"propose":[65,95],"diffusion-enhanced":[67],"decision":[68,85],"Transformer":[69,86],"(DEDT)":[70],"framework":[71],"consisting":[72],"diffusion":[75,106],"model":[76],"(DM)":[77],"designed":[78],"efficient":[80],"(DT)":[87],"utilized":[88],"phase-shift":[90],"optimizations.":[91],"Specifically,":[92],"first":[94],"novel":[97],"DM":[98],"mechanism,":[99],"i.e.,":[100],"conditional":[101],"imputation":[102],"based":[103,129],"denoising":[105],"probabilistic":[107],"model,":[108],"rapidly":[110],"acquiring":[111],"real-time":[112],"full":[113],"by":[115],"exploiting":[116],"spatial":[118],"correlations":[119],"inherent":[120],"Then,":[124],"optimize":[126],"beamforming":[127,154],"schemes":[128],"DT":[132],"architecture,":[133],"which":[134],"pre-trains":[135],"historical":[137],"environments":[138],"establish":[140],"robust":[142],"policy":[143],"model.":[144],"Next,":[145],"incorporate":[147],"fine-tuning":[149],"mechanism":[150],"ensure":[152],"rapid":[153],"adaptation":[155],"new":[157],"environments,":[158],"eliminating":[159],"retraining":[161],"process":[162],"imperative":[165],"conventional":[167],"reinforcement":[168],"learning":[169],"(RL)":[170],"methods.":[171,193],"Simulation":[172],"results":[173],"demonstrate":[174],"DEDT":[176],"can":[177],"enhance":[178],"efficiency":[179],"adaptability":[181],"RIS-aided":[183],"with":[185],"fluctuating":[186],"conditions":[188],"compared":[189],"state-of-the-art":[191],"RL":[192]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-07-15T18:14:33.161393","created_date":"2025-10-10T00:00:00"}