{"id":"https://openalex.org/W4409581219","doi":"https://doi.org/10.1109/tcomm.2025.3562357","title":"Channel Estimation and Hybrid Precoding for Massive MIMO-OTFS System With Doubly Squint","display_name":"Channel Estimation and Hybrid Precoding for Massive MIMO-OTFS System With Doubly Squint","publication_year":2025,"publication_date":"2025-04-18","ids":{"openalex":"https://openalex.org/W4409581219","doi":"https://doi.org/10.1109/tcomm.2025.3562357"},"language":"en","primary_location":{"id":"doi:10.1109/tcomm.2025.3562357","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2025.3562357","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"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 Transactions on Communications","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/A5027042855","display_name":"Mingming Duan","orcid":null},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Mingming Duan","raw_affiliation_strings":["State Key Laboratory of Integrated Services Networks, Xidian University, Xi’an, China","State Key Laboratory of Integrated Services Networks, Xidian University, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Services Networks, Xidian University, Xi’an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"State Key Laboratory of Integrated Services Networks, Xidian University, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100426079","display_name":"Pengfei Zhang","orcid":"https://orcid.org/0000-0001-7559-7348"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Pengfei Zhang","raw_affiliation_strings":["State Key Laboratory of Integrated Services Networks, Xidian University, Xi’an, China","State Key Laboratory of Integrated Services Networks, Xidian University, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Services Networks, Xidian University, Xi’an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"State Key Laboratory of Integrated Services Networks, Xidian University, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101557082","display_name":"Shun Zhang","orcid":"https://orcid.org/0000-0002-1641-0771"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shun Zhang","raw_affiliation_strings":["State Key Laboratory of Integrated Services Networks, Xidian University, Xi’an, China","State Key Laboratory of Integrated Services Networks, Xidian University, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Services Networks, Xidian University, Xi’an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"State Key Laboratory of Integrated Services Networks, Xidian University, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102639172","display_name":"Yao Ge","orcid":"https://orcid.org/0000-0002-3293-2051"},"institutions":[{"id":"https://openalex.org/I172675005","display_name":"Nanyang Technological University","ror":"https://ror.org/02e7b5302","country_code":"SG","type":"education","lineage":["https://openalex.org/I172675005"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Yao Ge","raw_affiliation_strings":["Continental-NTU Corporate Laboratory, Nanyang Technological University, Jurong West, Singapore","Continental-NTU Corporate Laboratory, Nanyang Technological University, Singapore"],"affiliations":[{"raw_affiliation_string":"Continental-NTU Corporate Laboratory, Nanyang Technological University, Jurong West, Singapore","institution_ids":["https://openalex.org/I172675005"]},{"raw_affiliation_string":"Continental-NTU Corporate Laboratory, Nanyang Technological University, Singapore","institution_ids":["https://openalex.org/I172675005"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5077149719","display_name":"Octavia A. Dobre","orcid":"https://orcid.org/0000-0001-8528-0512"},"institutions":[{"id":"https://openalex.org/I130438778","display_name":"Memorial University of Newfoundland","ror":"https://ror.org/04haebc03","country_code":"CA","type":"education","lineage":["https://openalex.org/I130438778"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Octavia A. Dobre","raw_affiliation_strings":["Faculty of Engineering and Applied Science, Memorial University, St. Johns, NL, Canada"],"affiliations":[{"raw_affiliation_string":"Faculty of Engineering and Applied Science, Memorial University, St. Johns, NL, Canada","institution_ids":["https://openalex.org/I130438778"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5060020877","display_name":"Chau Yuen","orcid":"https://orcid.org/0000-0002-9307-2120"},"institutions":[{"id":"https://openalex.org/I172675005","display_name":"Nanyang Technological University","ror":"https://ror.org/02e7b5302","country_code":"SG","type":"education","lineage":["https://openalex.org/I172675005"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Chau Yuen","raw_affiliation_strings":["School of Electrical and Electronics Engineering, Nanyang Technological University, Jurong West, Singapore","School of Electrical and Electronics Engineering, Nanyang Technological University, Singapore"],"affiliations":[{"raw_affiliation_string":"School of Electrical and Electronics Engineering, Nanyang Technological University, Jurong West, Singapore","institution_ids":["https://openalex.org/I172675005"]},{"raw_affiliation_string":"School of Electrical and Electronics Engineering, Nanyang Technological University, Singapore","institution_ids":["https://openalex.org/I172675005"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5027042855"],"corresponding_institution_ids":["https://openalex.org/I149594827"],"apc_list":null,"apc_paid":null,"fwci":1.4935,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.82111189,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":95,"max":96},"biblio":{"volume":"73","issue":"10","first_page":"9388","last_page":"9404"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11873","display_name":"PAPR reduction in OFDM","score":0.9980999827384949,"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":0.9980999827384949,"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":0.9567000269889832,"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/T11248","display_name":"Advanced Power Amplifier Design","score":0.9362999796867371,"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/precoding","display_name":"Precoding","score":0.9526380300521851},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5932456851005554},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.5888494253158569},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.5632427930831909},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5520070195198059},{"id":"https://openalex.org/keywords/zero-forcing-precoding","display_name":"Zero-forcing precoding","score":0.5211122632026672},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.32642805576324463},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3063560128211975},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.2787542939186096},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.13265833258628845}],"concepts":[{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.9526380300521851},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5932456851005554},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5888494253158569},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.5632427930831909},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5520070195198059},{"id":"https://openalex.org/C155437304","wikidata":"https://www.wikidata.org/wiki/Q8069444","display_name":"Zero-forcing precoding","level":5,"score":0.5211122632026672},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.32642805576324463},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3063560128211975},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2787542939186096},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.13265833258628845},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcomm.2025.3562357","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2025.3562357","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"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 Transactions on Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1543399326","display_name":null,"funder_award_id":"62271373","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":49,"referenced_works":["https://openalex.org/W2036657477","https://openalex.org/W2071282831","https://openalex.org/W2079865126","https://openalex.org/W2095843437","https://openalex.org/W2120406684","https://openalex.org/W2135959737","https://openalex.org/W2292759272","https://openalex.org/W2561566304","https://openalex.org/W2612254130","https://openalex.org/W2755486826","https://openalex.org/W2782637457","https://openalex.org/W2797817980","https://openalex.org/W2888002205","https://openalex.org/W2888283726","https://openalex.org/W2917655188","https://openalex.org/W2945761587","https://openalex.org/W2950013137","https://openalex.org/W2962703830","https://openalex.org/W2963933750","https://openalex.org/W2972661729","https://openalex.org/W2981096252","https://openalex.org/W2998260345","https://openalex.org/W3039789048","https://openalex.org/W3082907477","https://openalex.org/W3102859886","https://openalex.org/W3108383389","https://openalex.org/W3126485115","https://openalex.org/W3128173373","https://openalex.org/W3131459340","https://openalex.org/W3135300342","https://openalex.org/W3156622738","https://openalex.org/W3167883061","https://openalex.org/W3175667407","https://openalex.org/W3178250694","https://openalex.org/W3194620979","https://openalex.org/W4206632990","https://openalex.org/W4226242403","https://openalex.org/W4288752618","https://openalex.org/W4312991498","https://openalex.org/W4321021117","https://openalex.org/W4323345758","https://openalex.org/W4366149088","https://openalex.org/W4387951259","https://openalex.org/W4389252567","https://openalex.org/W4392939946","https://openalex.org/W4393028336","https://openalex.org/W4402041053","https://openalex.org/W4402352074","https://openalex.org/W4405304510"],"related_works":["https://openalex.org/W2111825998","https://openalex.org/W2326544815","https://openalex.org/W2489379490","https://openalex.org/W1973158664","https://openalex.org/W1731022149","https://openalex.org/W1996933839","https://openalex.org/W2000226056","https://openalex.org/W4315778014","https://openalex.org/W4386858283","https://openalex.org/W1979957996"],"abstract_inverted_index":{"Orthogonal":[0],"time":[1],"frequency":[2],"space":[3],"(OTFS)":[4],"modulation":[5],"and":[6,34,57,111,134,155,225],"massive":[7,45,145,160],"multi-input":[8],"multi-output":[9],"(MIMO)":[10],"are":[11],"promising":[12],"technologies":[13],"for":[14,20,159],"next":[15],"generation":[16],"wireless":[17],"communication":[18,54,122],"systems":[19,51],"their":[21],"abilities":[22],"to":[23,100,138,205],"counteract":[24],"the":[25,36,59,70,87,95,105,140,151,156,171,180,194,207,219,230],"issue":[26],"of":[27,44,173,221],"high":[28],"mobility":[29],"with":[30,47,67],"large":[31],"Doppler":[32,96,102,112],"spread":[33],"mitigate":[35,206],"channel":[37,132,153,174,189,197],"path":[38],"attenuation,":[39],"respectively.":[40],"The":[41],"natural":[42],"integration":[43],"MIMO":[46],"OTFS":[48],"in":[49,78,83,144,211],"millimeter-wave":[50],"can":[52,93,120],"improve":[53],"data":[55],"rate":[56],"enhance":[58],"spectral":[60],"efficiency.":[61],"However,":[62],"when":[63],"transmitting":[64],"wideband":[65,89,152],"signals":[66],"large-scale":[68],"arrays,":[69],"beam":[71,79,108],"squint":[72,97,109,113,118,142,165,182,209],"effect":[73,110,114,143,210],"may":[74],"occur,":[75],"causing":[76],"discrepancies":[77],"directions":[80],"across":[81],"subcarriers":[82],"multi-carrier":[84],"systems.":[85,147],"Moreover,":[86],"high-mobility":[88],"millimeter":[90],"wave":[91],"communications":[92],"induce":[94],"effect,":[98],"leading":[99],"different":[101],"shifts":[103],"among":[104],"subcarriers.":[106],"Both":[107],"(denoted":[115],"as":[116],"doubly":[117,141,164,181,208],"effect)":[119],"degrade":[121],"performance":[123],"significantly.":[124],"In":[125],"this":[126],"paper,":[127],"we":[128,185,199],"present":[129],"an":[130],"efficient":[131],"estimation":[133,190],"hybrid":[135,202],"precoding":[136,203],"scheme":[137,224],"address":[139],"MIMO-OTFS":[146,161],"We":[148,167],"first":[149],"characterize":[150],"model":[154],"input-output":[157],"relationship":[158],"transmission":[162,213],"considering":[163],"effect.":[166,183],"then":[168],"mathematically":[169],"derive":[170],"impact":[172],"parameters":[175],"on":[176],"chirp":[177],"pilots":[178],"under":[179],"Additionally,":[184],"develop":[186],"a":[187,201],"peak-index-based":[188],"scheme.":[191],"By":[192],"leveraging":[193],"results":[195,217],"from":[196],"estimation,":[198],"propose":[200],"method":[204],"downlink":[212],"scenarios.":[214],"Finally,":[215],"simulation":[216],"validate":[218],"effectiveness":[220],"our":[222],"proposed":[223],"show":[226],"its":[227],"superiority":[228],"over":[229],"existing":[231],"schemes.":[232]},"counts_by_year":[{"year":2025,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}