{"id":"https://openalex.org/W7138839565","doi":"https://doi.org/10.1109/globecom59602.2025.11431936","title":"Correlation Information-Aided Channel Estimation with Fractional Doppler for OTFS-Enabled LEO Satellite Communications","display_name":"Correlation Information-Aided Channel Estimation with Fractional Doppler for OTFS-Enabled LEO Satellite Communications","publication_year":2025,"publication_date":"2025-12-08","ids":{"openalex":"https://openalex.org/W7138839565","doi":"https://doi.org/10.1109/globecom59602.2025.11431936"},"language":null,"primary_location":{"id":"doi:10.1109/globecom59602.2025.11431936","is_oa":false,"landing_page_url":"https://doi.org/10.1109/globecom59602.2025.11431936","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2025 - 2025 IEEE Global Communications Conference","raw_type":"proceedings-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/A5129934051","display_name":"Li Zhen","orcid":null},"institutions":[{"id":"https://openalex.org/I4210136859","display_name":"Xi\u2019an University of Posts and Telecommunications","ror":"https://ror.org/04jn0td46","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210136859"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Li Zhen","raw_affiliation_strings":["Xi’an University of Posts and Telecommunications,Shaanxi Key Laboratory of Information Communication Network and Security,Xi’an,China"],"affiliations":[{"raw_affiliation_string":"Xi’an University of Posts and Telecommunications,Shaanxi Key Laboratory of Information Communication Network and Security,Xi’an,China","institution_ids":["https://openalex.org/I4210136859"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5130099737","display_name":"Ping Dong","orcid":null},"institutions":[{"id":"https://openalex.org/I4210136859","display_name":"Xi\u2019an University of Posts and Telecommunications","ror":"https://ror.org/04jn0td46","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210136859"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ping Dong","raw_affiliation_strings":["Xi’an University of Posts and Telecommunications,Shaanxi Key Laboratory of Information Communication Network and Security,Xi’an,China"],"affiliations":[{"raw_affiliation_string":"Xi’an University of Posts and Telecommunications,Shaanxi Key Laboratory of Information Communication Network and Security,Xi’an,China","institution_ids":["https://openalex.org/I4210136859"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5130191472","display_name":"Shuchang Li","orcid":null},"institutions":[{"id":"https://openalex.org/I4210136859","display_name":"Xi\u2019an University of Posts and Telecommunications","ror":"https://ror.org/04jn0td46","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210136859"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shuchang Li","raw_affiliation_strings":["Xi’an University of Posts and Telecommunications,Shaanxi Key Laboratory of Information Communication Network and Security,Xi’an,China"],"affiliations":[{"raw_affiliation_string":"Xi’an University of Posts and Telecommunications,Shaanxi Key Laboratory of Information Communication Network and Security,Xi’an,China","institution_ids":["https://openalex.org/I4210136859"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5130159072","display_name":"Jingling Li","orcid":null},"institutions":[{"id":"https://openalex.org/I194716290","display_name":"China Academy of Space Technology","ror":"https://ror.org/025397a59","country_code":"CN","type":"government","lineage":["https://openalex.org/I194716290","https://openalex.org/I2802615301"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jingling Li","raw_affiliation_strings":["CAST,National Key Laboratory of Science and Technology on Space Microwave,Xi’an,China"],"affiliations":[{"raw_affiliation_string":"CAST,National Key Laboratory of Science and Technology on Space Microwave,Xi’an,China","institution_ids":["https://openalex.org/I194716290"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080420296","display_name":"Xijie Wang","orcid":"https://orcid.org/0000-0003-3324-4709"},"institutions":[{"id":"https://openalex.org/I194716290","display_name":"China Academy of Space Technology","ror":"https://ror.org/025397a59","country_code":"CN","type":"government","lineage":["https://openalex.org/I194716290","https://openalex.org/I2802615301"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xianyu Wang","raw_affiliation_strings":["CAST,National Key Laboratory of Science and Technology on Space Microwave,Xi’an,China"],"affiliations":[{"raw_affiliation_string":"CAST,National Key Laboratory of Science and Technology on Space Microwave,Xi’an,China","institution_ids":["https://openalex.org/I194716290"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5129966434","display_name":"Zheng Chu","orcid":null},"institutions":[{"id":"https://openalex.org/I13591777","display_name":"University of Nottingham Ningbo China","ror":"https://ror.org/03y4dt428","country_code":"CN","type":"education","lineage":["https://openalex.org/I13591777","https://openalex.org/I142263535"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zheng Chu","raw_affiliation_strings":["University of Nottingham Ningbo China,Department of Electrical and Electronic Engineering,Ningbo,China"],"affiliations":[{"raw_affiliation_string":"University of Nottingham Ningbo China,Department of Electrical and Electronic Engineering,Ningbo,China","institution_ids":["https://openalex.org/I13591777"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5129970197","display_name":"Pei Xiao","orcid":null},"institutions":[{"id":"https://openalex.org/I28290843","display_name":"University of Surrey","ror":"https://ror.org/00ks66431","country_code":"GB","type":"education","lineage":["https://openalex.org/I28290843"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Pei Xiao","raw_affiliation_strings":["University of Surrey,6GIC,Guildford,U.K"],"affiliations":[{"raw_affiliation_string":"University of Surrey,6GIC,Guildford,U.K","institution_ids":["https://openalex.org/I28290843"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5129934051"],"corresponding_institution_ids":["https://openalex.org/I4210136859"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.67916227,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"2759","last_page":"2764"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11873","display_name":"PAPR reduction in OFDM","score":0.555899977684021,"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":0.555899977684021,"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/T12042","display_name":"Satellite Communication Systems","score":0.23960000276565552,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T10655","display_name":"GNSS positioning and interference","score":0.06069999933242798,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/doppler-effect","display_name":"Doppler effect","score":0.6898999810218811},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6662999987602234},{"id":"https://openalex.org/keywords/robustness","display_name":"Robustness (evolution)","score":0.5568000078201294},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.5171999931335449},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.4851999878883362},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.46299999952316284},{"id":"https://openalex.org/keywords/communications-satellite","display_name":"Communications satellite","score":0.39899998903274536},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.3824000060558319}],"concepts":[{"id":"https://openalex.org/C142757262","wikidata":"https://www.wikidata.org/wiki/Q76436","display_name":"Doppler effect","level":2,"score":0.6898999810218811},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6662999987602234},{"id":"https://openalex.org/C63479239","wikidata":"https://www.wikidata.org/wiki/Q7353546","display_name":"Robustness (evolution)","level":3,"score":0.5568000078201294},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5230000019073486},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.5171999931335449},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5167999863624573},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.4851999878883362},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.46299999952316284},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.41130000352859497},{"id":"https://openalex.org/C121308736","wikidata":"https://www.wikidata.org/wiki/Q149918","display_name":"Communications satellite","level":3,"score":0.39899998903274536},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.3824000060558319},{"id":"https://openalex.org/C167928553","wikidata":"https://www.wikidata.org/wiki/Q1376021","display_name":"Estimation theory","level":2,"score":0.3732999861240387},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3555000126361847},{"id":"https://openalex.org/C126042441","wikidata":"https://www.wikidata.org/wiki/Q1324888","display_name":"Frame (networking)","level":2,"score":0.34459999203681946},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.33640000224113464},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.3325999975204468},{"id":"https://openalex.org/C117220453","wikidata":"https://www.wikidata.org/wiki/Q5172842","display_name":"Correlation","level":2,"score":0.3253999948501587},{"id":"https://openalex.org/C123079801","wikidata":"https://www.wikidata.org/wiki/Q750240","display_name":"Modulation (music)","level":2,"score":0.31299999356269836},{"id":"https://openalex.org/C2988629262","wikidata":"https://www.wikidata.org/wiki/Q76436","display_name":"Doppler frequency","level":3,"score":0.30239999294281006},{"id":"https://openalex.org/C43658927","wikidata":"https://www.wikidata.org/wiki/Q5046339","display_name":"Carrier-to-noise ratio","level":3,"score":0.28119999170303345},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.2809000015258789},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.2696000039577484}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/globecom59602.2025.11431936","is_oa":false,"landing_page_url":"https://doi.org/10.1109/globecom59602.2025.11431936","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2025 - 2025 IEEE Global Communications Conference","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W2612254130","https://openalex.org/W2951947870","https://openalex.org/W2962951066","https://openalex.org/W2983602302","https://openalex.org/W2990723501","https://openalex.org/W3128040705","https://openalex.org/W3135109547","https://openalex.org/W4367016224","https://openalex.org/W4376480798","https://openalex.org/W4376480821","https://openalex.org/W4380607233","https://openalex.org/W4388740179","https://openalex.org/W4389544399","https://openalex.org/W4402509444","https://openalex.org/W4402509633","https://openalex.org/W4402673558","https://openalex.org/W4402811123","https://openalex.org/W4405666786"],"related_works":[],"abstract_inverted_index":{"Integrating":[0],"orthogonal":[1],"time":[2],"frequency":[3],"space":[4],"(OTFS)":[5],"modulation":[6],"into":[7],"low-Earth-orbit":[8],"(LEO)":[9],"satellite":[10],"communication":[11],"systems":[12],"can":[13,146],"significantly":[14],"enhance":[15],"the":[16,29,37,41,49,79,98,103,126,134,158,168],"robustness":[17],"against":[18],"severe":[19],"Doppler":[20,44,83],"effects":[21],"caused":[22],"by":[23,96],"fast":[24,90],"time-varying":[25],"channels.":[26],"However,":[27],"since":[28],"high-dynamic":[30],"characteristic":[31],"of":[32,51,81,93,102,107,133],"terrestrial-to-satellite":[33],"links":[34],"considerably":[35],"constrains":[36],"OTFS":[38],"frame":[39],"duration,":[40],"inevitable":[42],"fractional":[43,82],"shifts":[45],"will":[46],"result":[47],"in":[48,78,156,165],"emergence":[50],"inter-Doppler":[52],"interference":[53],"(IDI),":[54],"thereby":[55],"degrading":[56],"channel":[57,70,94,114,128],"estimation":[58,71,92,115,150],"performance.":[59],"To":[60],"tackle":[61],"this":[62],"challenge,":[63],"we":[64],"develop":[65],"an":[66],"efficient":[67],"correlation":[68,105],"information-aided":[69],"scheme":[72,87,145],"based":[73],"on":[74],"Zadoff-Chu":[75],"(ZC)":[76],"sequences":[77],"presence":[80],"shifts.":[84],"The":[85],"proposed":[86],"enables":[88],"a":[89,117,148],"coarse":[91],"parameters":[95,129],"leveraging":[97],"magnitude":[99],"distribution":[100],"regularity":[101],"periodical":[104],"results":[106,141],"ZC":[108],"pilot":[109],"under":[110],"IDI,":[111],"and":[112,139,162],"remodels":[113],"as":[116],"non-convex":[118],"constrained":[119],"least":[120],"squares":[121],"optimization":[122],"problem":[123],"to":[124,167],"obtain":[125],"fine":[127],"for":[130],"further":[131],"resistance":[132],"inter-path":[135],"interference.":[136],"Complexity":[137],"analysis":[138],"simulation":[140],"validate":[142],"that":[143],"our":[144],"attain":[147],"high":[149],"accuracy":[151],"while":[152],"achieving":[153],"substantial":[154],"reductions":[155],"both":[157],"peak-to-average":[159],"power":[160],"ratio":[161],"computational":[163],"complexity,":[164],"comparison":[166],"state-of-the-art":[169],"ones.":[170]},"counts_by_year":[],"updated_date":"2026-03-20T20:54:20.808490","created_date":"2026-03-20T00:00:00"}