{"id":"https://openalex.org/W4413073874","doi":"https://doi.org/10.1109/lcomm.2025.3589766","title":"Low Complexity Channel Estimation Based on UAMP for Orthogonal Time Frequency Space Systems","display_name":"Low Complexity Channel Estimation Based on UAMP for Orthogonal Time Frequency Space Systems","publication_year":2025,"publication_date":"2025-07-16","ids":{"openalex":"https://openalex.org/W4413073874","doi":"https://doi.org/10.1109/lcomm.2025.3589766"},"language":"en","primary_location":{"id":"doi:10.1109/lcomm.2025.3589766","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2025.3589766","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 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/A5042096663","display_name":"Peng Sun","orcid":"https://orcid.org/0000-0001-6431-3119"},"institutions":[{"id":"https://openalex.org/I38877650","display_name":"Zhengzhou University","ror":"https://ror.org/04ypx8c21","country_code":"CN","type":"education","lineage":["https://openalex.org/I38877650"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Peng Sun","raw_affiliation_strings":["School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou, China","school of Electrical and Information Engineering, Zhengzhou University, Zhengzhou, China"],"affiliations":[{"raw_affiliation_string":"School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou, China","institution_ids":["https://openalex.org/I38877650"]},{"raw_affiliation_string":"school of Electrical and Information Engineering, Zhengzhou University, Zhengzhou, China","institution_ids":["https://openalex.org/I38877650"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087102173","display_name":"M. Y. Dong","orcid":null},"institutions":[{"id":"https://openalex.org/I38877650","display_name":"Zhengzhou University","ror":"https://ror.org/04ypx8c21","country_code":"CN","type":"education","lineage":["https://openalex.org/I38877650"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Mengqian Dong","raw_affiliation_strings":["School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou, China","school of Electrical and Information Engineering, Zhengzhou University, Zhengzhou, China"],"affiliations":[{"raw_affiliation_string":"School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou, China","institution_ids":["https://openalex.org/I38877650"]},{"raw_affiliation_string":"school of Electrical and Information Engineering, Zhengzhou University, Zhengzhou, China","institution_ids":["https://openalex.org/I38877650"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047844850","display_name":"Qinghua Guo","orcid":"https://orcid.org/0000-0002-5180-7854"},"institutions":[{"id":"https://openalex.org/I204824540","display_name":"University of Wollongong","ror":"https://ror.org/00jtmb277","country_code":"AU","type":"education","lineage":["https://openalex.org/I204824540"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Qinghua Guo","raw_affiliation_strings":["School of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Wollongong, Australia","School of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Wollongong, NSW, Australia"],"affiliations":[{"raw_affiliation_string":"School of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Wollongong, Australia","institution_ids":["https://openalex.org/I204824540"]},{"raw_affiliation_string":"School of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Wollongong, NSW, Australia","institution_ids":["https://openalex.org/I204824540"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5106615553","display_name":"Jianhua Cui","orcid":"https://orcid.org/0009-0008-9348-0993"},"institutions":[{"id":"https://openalex.org/I4210117164","display_name":"Luoyang Normal University","ror":"https://ror.org/029man787","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210117164"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jianhua Cui","raw_affiliation_strings":["School of Physics and Electronic Information, Luoyang Normal University, Luoyang, Henan, China","School of Physics and Electronic Information, Luoyang Normal University, No. 6 Jiqing Road, Yibin Zone, Luoyang, Henan, China"],"affiliations":[{"raw_affiliation_string":"School of Physics and Electronic Information, Luoyang Normal University, Luoyang, Henan, China","institution_ids":["https://openalex.org/I4210117164"]},{"raw_affiliation_string":"School of Physics and Electronic Information, Luoyang Normal University, No. 6 Jiqing Road, Yibin Zone, Luoyang, Henan, China","institution_ids":["https://openalex.org/I4210117164"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5011625316","display_name":"Hang Yu","orcid":"https://orcid.org/0000-0002-7273-3233"},"institutions":[{"id":"https://openalex.org/I200845125","display_name":"Nanjing University of Information Science and Technology","ror":"https://ror.org/02y0rxk19","country_code":"CN","type":"education","lineage":["https://openalex.org/I200845125"]},{"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":"Hang Yu","raw_affiliation_strings":["School of Computer Science, Nanjing University of Information Science and Technology, Nanjing, China","school of Computer Science, Nanjing University of Information Science and Technology, China"],"affiliations":[{"raw_affiliation_string":"School of Computer Science, Nanjing University of Information Science and Technology, Nanjing, China","institution_ids":["https://openalex.org/I200845125"]},{"raw_affiliation_string":"school of Computer Science, Nanjing University of Information Science and Technology, China","institution_ids":["https://openalex.org/I200845125","https://openalex.org/I36399199"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5071525239","display_name":"Fei Liu","orcid":"https://orcid.org/0000-0003-3156-4821"},"institutions":[{"id":"https://openalex.org/I38877650","display_name":"Zhengzhou University","ror":"https://ror.org/04ypx8c21","country_code":"CN","type":"education","lineage":["https://openalex.org/I38877650"]},{"id":"https://openalex.org/I4210091712","display_name":"Zhengzhou University of Science and Technology","ror":"https://ror.org/00b3j7936","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210091712"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Fei Liu","raw_affiliation_strings":["School of Geoscience and Technology, Zhengzhou University, Zhengzhou, China","school of Geoscience and Technology, Zhengzhou University, Zhengzhou, China"],"affiliations":[{"raw_affiliation_string":"School of Geoscience and Technology, Zhengzhou University, Zhengzhou, China","institution_ids":["https://openalex.org/I38877650"]},{"raw_affiliation_string":"school of Geoscience and Technology, Zhengzhou University, Zhengzhou, China","institution_ids":["https://openalex.org/I4210091712","https://openalex.org/I38877650"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5042096663"],"corresponding_institution_ids":["https://openalex.org/I38877650"],"apc_list":null,"apc_paid":null,"fwci":2.3568,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.90512141,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":98},"biblio":{"volume":"29","issue":"10","first_page":"2208","last_page":"2212"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10711","display_name":"Target Tracking and Data Fusion in Sensor Networks","score":0.9839000105857849,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10711","display_name":"Target Tracking and Data Fusion in Sensor Networks","score":0.9839000105857849,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9736999869346619,"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/T10575","display_name":"Wireless Communication Networks Research","score":0.9736999869346619,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6019448041915894},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5600197911262512},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.511041522026062},{"id":"https://openalex.org/keywords/time\u2013frequency-analysis","display_name":"Time\u2013frequency analysis","score":0.5087235569953918},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4482632875442505},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.4408404231071472},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.4318329095840454},{"id":"https://openalex.org/keywords/signal-to-noise-ratio","display_name":"Signal-to-noise ratio (imaging)","score":0.41312912106513977},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3491809368133545},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.11718085408210754},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.10226824879646301}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6019448041915894},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5600197911262512},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.511041522026062},{"id":"https://openalex.org/C142433447","wikidata":"https://www.wikidata.org/wiki/Q7806653","display_name":"Time\u2013frequency analysis","level":3,"score":0.5087235569953918},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4482632875442505},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.4408404231071472},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.4318329095840454},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.41312912106513977},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3491809368133545},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.11718085408210754},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.10226824879646301}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lcomm.2025.3589766","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2025.3589766","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.5600000023841858}],"awards":[{"id":"https://openalex.org/G1592989301","display_name":null,"funder_award_id":"242102211107","funder_id":"https://openalex.org/F4320336593","funder_display_name":"Henan Provincial Science and Technology Research Project"},{"id":"https://openalex.org/G4799385007","display_name":null,"funder_award_id":"61901417","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8525959446","display_name":null,"funder_award_id":"242102211107","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"},{"id":"https://openalex.org/F4320327051","display_name":"Science and Technology Department of Henan Province","ror":null},{"id":"https://openalex.org/F4320336593","display_name":"Henan Provincial Science and Technology Research Project","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":23,"referenced_works":["https://openalex.org/W2065513175","https://openalex.org/W2581860015","https://openalex.org/W2776751579","https://openalex.org/W2888002205","https://openalex.org/W2936340240","https://openalex.org/W2950013137","https://openalex.org/W2962951066","https://openalex.org/W2963817362","https://openalex.org/W3034450003","https://openalex.org/W3036959716","https://openalex.org/W3169454332","https://openalex.org/W3172410657","https://openalex.org/W3203940756","https://openalex.org/W4210778600","https://openalex.org/W4292981572","https://openalex.org/W4301184420","https://openalex.org/W4372259954","https://openalex.org/W4376455255","https://openalex.org/W4380451120","https://openalex.org/W4388426462","https://openalex.org/W4390674830","https://openalex.org/W4392152376","https://openalex.org/W4393854681"],"related_works":["https://openalex.org/W2792339401","https://openalex.org/W2530747331","https://openalex.org/W3097525855","https://openalex.org/W2125564215","https://openalex.org/W4391741972","https://openalex.org/W1986382998","https://openalex.org/W2517776947","https://openalex.org/W2084482193","https://openalex.org/W4243590696","https://openalex.org/W4317418808"],"abstract_inverted_index":{"To":[0],"address":[1],"the":[2,26,34,52,57,68,74,81],"problem":[3],"of":[4,7,36],"high":[5],"complexity":[6,21],"channel":[8,22,38,76],"estimation":[9,23,35,77],"for":[10],"orthogonal":[11],"time":[12],"frequency":[13],"space":[14],"(OTFS)":[15],"systems,":[16],"we":[17],"propose":[18],"a":[19,42],"low":[20],"method":[24],"leveraging":[25],"unitary":[27],"approximate":[28],"message":[29],"passing":[30],"(UAMP)":[31],"algorithm.":[32,59,83],"Specifically,":[33],"OTFS":[37],"is":[39,47],"represented":[40],"as":[41],"linear":[43],"mixing":[44],"model,":[45],"which":[46],"handled":[48],"using":[49],"UAMP,":[50],"avoiding":[51],"matrix":[53],"inversion":[54],"operations":[55],"in":[56],"state-of-the-art":[58],"Numerical":[60],"results":[61],"demonstrate":[62],"that,":[63],"with":[64],"significantly":[65],"lower":[66],"complexity,":[67],"proposed":[69],"algorithm":[70],"can":[71],"achieve":[72],"almost":[73],"same":[75],"performance,":[78],"compared":[79],"to":[80],"benchmark":[82]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-10-10T00:00:00"}