{"id":"https://openalex.org/W4410227381","doi":"https://doi.org/10.1109/wcnc61545.2025.10978604","title":"Sparse Graph Attention Network Based Signal Detection for OTFS System","display_name":"Sparse Graph Attention Network Based Signal Detection for OTFS System","publication_year":2025,"publication_date":"2025-03-24","ids":{"openalex":"https://openalex.org/W4410227381","doi":"https://doi.org/10.1109/wcnc61545.2025.10978604"},"language":"en","primary_location":{"id":"doi:10.1109/wcnc61545.2025.10978604","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcnc61545.2025.10978604","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 IEEE Wireless Communications and Networking Conference (WCNC)","raw_type":"proceedings-article"},"type":"conference-paper","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/A5100462081","display_name":"Yulong Xu","orcid":"https://orcid.org/0000-0002-1947-8448"},"institutions":[{"id":"https://openalex.org/I4210090176","display_name":"Institute of Computing Technology","ror":"https://ror.org/0090r4d87","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210090176"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yulong Xu","raw_affiliation_strings":["Institute of Computing Technology, CAS,State Key Lab of Processors,Beijing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Computing Technology, CAS,State Key Lab of Processors,Beijing,China","institution_ids":["https://openalex.org/I4210090176"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109372448","display_name":"Hai\u2010Wei Shi","orcid":null},"institutions":[{"id":"https://openalex.org/I4210090176","display_name":"Institute of Computing Technology","ror":"https://ror.org/0090r4d87","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210090176"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Haiwei Shi","raw_affiliation_strings":["Institute of Computing Technology, CAS,State Key Lab of Processors,Beijing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Computing Technology, CAS,State Key Lab of Processors,Beijing,China","institution_ids":["https://openalex.org/I4210090176"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111946256","display_name":"Jinglin Shi","orcid":null},"institutions":[{"id":"https://openalex.org/I4210090176","display_name":"Institute of Computing Technology","ror":"https://ror.org/0090r4d87","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210090176"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jinglin Shi","raw_affiliation_strings":["Institute of Computing Technology, CAS,State Key Lab of Processors,Beijing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Computing Technology, CAS,State Key Lab of Processors,Beijing,China","institution_ids":["https://openalex.org/I4210090176"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040456231","display_name":"Yiqing Zhou","orcid":"https://orcid.org/0000-0002-4553-5207"},"institutions":[{"id":"https://openalex.org/I4210090176","display_name":"Institute of Computing Technology","ror":"https://ror.org/0090r4d87","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210090176"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yiqing Zhou","raw_affiliation_strings":["Institute of Computing Technology, CAS,State Key Lab of Processors,Beijing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Computing Technology, CAS,State Key Lab of Processors,Beijing,China","institution_ids":["https://openalex.org/I4210090176"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076863723","display_name":"Shuo Zhou","orcid":"https://orcid.org/0000-0002-8069-2814"},"institutions":[{"id":"https://openalex.org/I4210090176","display_name":"Institute of Computing Technology","ror":"https://ror.org/0090r4d87","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210090176"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shuo Zhou","raw_affiliation_strings":["Institute of Computing Technology, CAS,State Key Lab of Processors,Beijing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Computing Technology, CAS,State Key Lab of Processors,Beijing,China","institution_ids":["https://openalex.org/I4210090176"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100358604","display_name":"Congcong Wang","orcid":"https://orcid.org/0000-0001-8268-5901"},"institutions":[{"id":"https://openalex.org/I4210090176","display_name":"Institute of Computing Technology","ror":"https://ror.org/0090r4d87","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210090176"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Congcong Wang","raw_affiliation_strings":["Institute of Computing Technology, CAS,State Key Lab of Processors,Beijing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Computing Technology, CAS,State Key Lab of Processors,Beijing,China","institution_ids":["https://openalex.org/I4210090176"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5023260332","display_name":"Hanxiao Yu","orcid":null},"institutions":[{"id":"https://openalex.org/I4210090176","display_name":"Institute of Computing Technology","ror":"https://ror.org/0090r4d87","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210090176"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hanxiao Yu","raw_affiliation_strings":["Institute of Computing Technology, CAS,State Key Lab of Processors,Beijing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Computing Technology, CAS,State Key Lab of Processors,Beijing,China","institution_ids":["https://openalex.org/I4210090176"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I4210090176"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11873","display_name":"PAPR reduction in OFDM","score":0.9908000230789185,"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/T11873","display_name":"PAPR reduction in OFDM","score":0.9908000230789185,"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/T10767","display_name":"Advanced Photonic Communication Systems","score":0.9320999979972839,"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/T10205","display_name":"Advanced Fiber Optic Sensors","score":0.9081000089645386,"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/computer-science","display_name":"Computer science","score":0.6993665099143982},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.46078550815582275},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.4251229465007782},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.3532174825668335},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.12740126252174377}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6993665099143982},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.46078550815582275},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.4251229465007782},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.3532174825668335},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.12740126252174377},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/wcnc61545.2025.10978604","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcnc61545.2025.10978604","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 IEEE Wireless Communications and Networking Conference (WCNC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G7615036676","display_name":null,"funder_award_id":"U21A20449","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":false,"pdf":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W2098212908","https://openalex.org/W2155211041","https://openalex.org/W2893910439","https://openalex.org/W2899406779","https://openalex.org/W2962951066","https://openalex.org/W2978825329","https://openalex.org/W3036390306","https://openalex.org/W3165171381","https://openalex.org/W3194279113","https://openalex.org/W4248709896","https://openalex.org/W4292968041","https://openalex.org/W4380607233","https://openalex.org/W4380905832","https://openalex.org/W4387934956","https://openalex.org/W6769516626"],"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":{"Orthogonal":[0],"time-frequency":[1],"space":[2],"(OTFS)":[3],"modulation":[4],"has":[5],"emerged":[6],"as":[7],"a":[8,53,87,129],"promising":[9],"solution":[10,131],"for":[11,62,90,132],"reliable":[12],"communication":[13,135],"in":[14],"high-mobility":[15,134],"scenarios,":[16],"addressing":[17],"the":[18,63,73,76,98,102,115],"limitations":[19],"of":[20,75],"traditional":[21],"orthogonal":[22],"frequency-division":[23],"multiplexing":[24],"(OFDM)":[25],"systems.":[26,136],"However,":[27],"existing":[28,122],"OTFS":[29,58,68],"detection":[30,109],"methods,":[31],"including":[32],"linear,":[33],"nonlinear,":[34],"and":[35],"AI-based":[36],"detectors,":[37,123],"struggle":[38],"with":[39,124],"either":[40],"high":[41],"computational":[42],"complexity":[43,83],"or":[44],"suboptimal":[45],"performance.":[46],"To":[47],"overcome":[48],"these":[49],"limitations,":[50],"we":[51],"propose":[52],"low-complexity":[54],"graph":[55,89],"attention":[56,96],"network-based":[57],"detector":[59],"(GAT-OTFS)":[60],"tailored":[61],"reduced":[64,125],"cyclic":[65],"prefix":[66],"(RCP)":[67],"scenario.":[69],"Our":[70],"approach":[71],"leverages":[72],"sparsity":[74],"DD":[77],"domain":[78],"equivalent":[79],"channel":[80,106],"to":[81],"reduce":[82],"by":[84],"precisely":[85],"constructing":[86],"sparse":[88],"GNN-based":[91],"detection.":[92],"By":[93],"introducing":[94],"an":[95],"mechanism,":[97],"GAT-OTFS":[99,116],"effectively":[100],"captures":[101],"correlation":[103],"between":[104],"different":[105],"paths,":[107],"enhancing":[108],"accuracy.":[110],"Simulation":[111],"results":[112],"demonstrate":[113],"that":[114],"offers":[117],"substantial":[118],"performance":[119],"improvements":[120],"over":[121],"complexity,":[126],"making":[127],"it":[128],"viable":[130],"future":[133]},"counts_by_year":[{"year":2025,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}