{"id":"https://openalex.org/W7154565095","doi":"https://doi.org/10.1109/lwc.2026.3684567","title":"A Shifted Window Attention-Based Lightweight Model for Massive MIMO CSI Feedback","display_name":"A Shifted Window Attention-Based Lightweight Model for Massive MIMO CSI Feedback","publication_year":2026,"publication_date":"2026-01-01","ids":{"openalex":"https://openalex.org/W7154565095","doi":"https://doi.org/10.1109/lwc.2026.3684567"},"language":null,"primary_location":{"id":"doi:10.1109/lwc.2026.3684567","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2026.3684567","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"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 Wireless Communications Letters","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/A5133732806","display_name":"Jian Ma","orcid":null},"institutions":[{"id":"https://openalex.org/I180662265","display_name":"China Mobile (China)","ror":"https://ror.org/05gftfe97","country_code":"CN","type":"company","lineage":["https://openalex.org/I180662265"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Jian Ma","raw_affiliation_strings":["Department of Wireless and Terminal Technology, China Mobile Research Institute, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Wireless and Terminal Technology, China Mobile Research Institute, Beijing, China","institution_ids":["https://openalex.org/I180662265"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Ran Li","orcid":"https://orcid.org/0009-0009-3034-5759"},"institutions":[{"id":"https://openalex.org/I180662265","display_name":"China Mobile (China)","ror":"https://ror.org/05gftfe97","country_code":"CN","type":"company","lineage":["https://openalex.org/I180662265"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ran Li","raw_affiliation_strings":["Department of Wireless and Terminal Technology, China Mobile Research Institute, Beijing, China"],"raw_orcid":"https://orcid.org/0009-0009-3034-5759","affiliations":[{"raw_affiliation_string":"Department of Wireless and Terminal Technology, China Mobile Research Institute, Beijing, China","institution_ids":["https://openalex.org/I180662265"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5089099002","display_name":"Lei Xia","orcid":"https://orcid.org/0000-0002-4492-3224"},"institutions":[{"id":"https://openalex.org/I114218197","display_name":"Chinese Academy of Social Sciences","ror":"https://ror.org/05bxbmy32","country_code":"CN","type":"facility","lineage":["https://openalex.org/I114218197"]},{"id":"https://openalex.org/I4391012565","display_name":"University of Chinese Academy of Social Sciences","ror":"https://ror.org/03va9g668","country_code":null,"type":"education","lineage":["https://openalex.org/I4391012565"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lei Xia","raw_affiliation_strings":["University of Chinese Academy of Social Sciences, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Chinese Academy of Social Sciences, Beijing, China","institution_ids":["https://openalex.org/I114218197","https://openalex.org/I4391012565"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015053416","display_name":"Nan Hu","orcid":"https://orcid.org/0009-0005-7221-7748"},"institutions":[{"id":"https://openalex.org/I180662265","display_name":"China Mobile (China)","ror":"https://ror.org/05gftfe97","country_code":"CN","type":"company","lineage":["https://openalex.org/I180662265"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Nan Hu","raw_affiliation_strings":["Department of Wireless and Terminal Technology, China Mobile Research Institute, Beijing, China"],"raw_orcid":"https://orcid.org/0009-0005-7221-7748","affiliations":[{"raw_affiliation_string":"Department of Wireless and Terminal Technology, China Mobile Research Institute, Beijing, China","institution_ids":["https://openalex.org/I180662265"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004285875","display_name":"T.S. Liu","orcid":"https://orcid.org/0000-0001-7537-7070"},"institutions":[{"id":"https://openalex.org/I180662265","display_name":"China Mobile (China)","ror":"https://ror.org/05gftfe97","country_code":"CN","type":"company","lineage":["https://openalex.org/I180662265"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Tong Liu","raw_affiliation_strings":["Department of Wireless and Terminal Technology, China Mobile Research Institute, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0001-7537-7070","affiliations":[{"raw_affiliation_string":"Department of Wireless and Terminal Technology, China Mobile Research Institute, Beijing, China","institution_ids":["https://openalex.org/I180662265"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5133736120","display_name":"Jingwei Dai","orcid":null},"institutions":[{"id":"https://openalex.org/I180662265","display_name":"China Mobile (China)","ror":"https://ror.org/05gftfe97","country_code":"CN","type":"company","lineage":["https://openalex.org/I180662265"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jingwei Dai","raw_affiliation_strings":["Department of Wireless and Terminal Technology, China Mobile Research Institute, Beijing, China"],"raw_orcid":"https://orcid.org/0009-0007-9379-0900","affiliations":[{"raw_affiliation_string":"Department of Wireless and Terminal Technology, China Mobile Research Institute, Beijing, China","institution_ids":["https://openalex.org/I180662265"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5133732806"],"corresponding_institution_ids":["https://openalex.org/I180662265"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.83226551,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"15","issue":null,"first_page":"2634","last_page":"2638"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.11980000138282776,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.11980000138282776,"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/T11233","display_name":"Advanced Adaptive Filtering Techniques","score":0.0908999964594841,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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":0.0754999965429306,"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/mimo","display_name":"MIMO","score":0.5103999972343445},{"id":"https://openalex.org/keywords/window","display_name":"Window (computing)","score":0.36149999499320984},{"id":"https://openalex.org/keywords/signal-to-noise-ratio","display_name":"Signal-to-noise ratio (imaging)","score":0.3400999903678894},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.334199994802475},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.2777000069618225}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6945000290870667},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.5103999972343445},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.41440001130104065},{"id":"https://openalex.org/C2778751112","wikidata":"https://www.wikidata.org/wiki/Q835016","display_name":"Window (computing)","level":2,"score":0.36149999499320984},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.3400999903678894},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.334199994802475},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.2777000069618225},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.2736999988555908},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.27079999446868896},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.2596000134944916}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lwc.2026.3684567","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2026.3684567","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"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 Wireless Communications Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"In":[0],"massive":[1,98],"multiple-input":[2],"multiple-output":[3],"(MIMO)":[4],"systems,":[5],"balancing":[6],"Channel":[7],"State":[8],"Information":[9],"(CSI)":[10],"feedback":[11],"accuracy":[12],"and":[13,59,68,84],"transmission":[14],"efficiency":[15],"is":[16],"a":[17,23,30,41,93],"critical":[18],"challenge.":[19],"This":[20],"letter":[21],"proposes":[22],"Lightweight":[24],"Shifted":[25],"Window":[26],"Attention":[27],"Network":[28],"(LightSWNet),":[29],"symmetric":[31],"encoder-decoder":[32,64],"neural":[33],"network":[34],"built":[35],"on":[36],"shifted-window":[37],"attention.":[38],"It":[39],"integrates":[40],"novel":[42],"Dual":[43],"Window-Shift":[44],"(DWS)":[45],"block":[46],"to":[47],"capture":[48],"cross-window":[49],"CSI":[50,100],"contextual":[51],"information":[52],"with":[53],"low":[54],"complexity.":[55],"The":[56],"fixed-dimension":[57],"design":[58],"decoupled":[60],"compression":[61],"in":[62,77],"the":[63],"ensure":[65],"stable":[66],"training":[67],"high-fidelity":[69],"reconstruction.":[70],"Experimental":[71],"results":[72],"demonstrate":[73],"LightSWNet":[74],"outperforms":[75],"baselines":[76],"normalized":[78],"mean":[79],"square":[80],"error":[81],"(NMSE)":[82],"improvement":[83],"Floating-Point":[85],"Operations":[86],"(FLOPs)":[87],"reduction":[88],"for":[89,96],"most":[90],"scenarios,":[91],"offering":[92],"practical":[94],"solution":[95],"resource-constrained":[97],"MIMO":[99],"feedback.":[101]},"counts_by_year":[],"updated_date":"2026-04-29T09:16:38.111599","created_date":"2026-04-17T00:00:00"}