{"id":"https://openalex.org/W2963774506","doi":"https://doi.org/10.1109/lcomm.2019.2930703","title":"Blind Pilot Decontamination With Hierarchical Design","display_name":"Blind Pilot Decontamination With Hierarchical Design","publication_year":2019,"publication_date":"2019-07-23","ids":{"openalex":"https://openalex.org/W2963774506","doi":"https://doi.org/10.1109/lcomm.2019.2930703","mag":"2963774506"},"language":"en","primary_location":{"id":"doi:10.1109/lcomm.2019.2930703","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2019.2930703","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/A5077269054","display_name":"Hairong Wang","orcid":"https://orcid.org/0000-0002-3606-7464"},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Hairong Wang","raw_affiliation_strings":["College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0002-3606-7464","affiliations":[{"raw_affiliation_string":"College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China","institution_ids":["https://openalex.org/I41198531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101062941","display_name":"Youhua Fu","orcid":null},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Youhua Fu","raw_affiliation_strings":["College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China","institution_ids":["https://openalex.org/I41198531"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100433204","display_name":"Jun Zhang","orcid":"https://orcid.org/0000-0002-8232-2171"},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jun Zhang","raw_affiliation_strings":["College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0002-8232-2171","affiliations":[{"raw_affiliation_string":"College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China","institution_ids":["https://openalex.org/I41198531"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5077269054"],"corresponding_institution_ids":["https://openalex.org/I41198531"],"apc_list":null,"apc_paid":null,"fwci":0.1211,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.46045562,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"23","issue":"10","first_page":"1791","last_page":"1795"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12791","display_name":"Full-Duplex Wireless Communications","score":0.9994000196456909,"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/T12791","display_name":"Full-Duplex Wireless Communications","score":0.9994000196456909,"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/T11851","display_name":"Electromagnetic Compatibility and Measurements","score":0.9990000128746033,"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/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","score":0.9988999962806702,"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/subspace-topology","display_name":"Subspace topology","score":0.7160148620605469},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6641515493392944},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.598278284072876},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.5865626335144043},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.5817728042602539},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.535006582736969},{"id":"https://openalex.org/keywords/spectrum","display_name":"Spectrum (functional analysis)","score":0.5100424885749817},{"id":"https://openalex.org/keywords/covariance-matrix","display_name":"Covariance matrix","score":0.48063626885414124},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.45469820499420166},{"id":"https://openalex.org/keywords/estimation-theory","display_name":"Estimation theory","score":0.4508287310600281},{"id":"https://openalex.org/keywords/nonlinear-system","display_name":"Nonlinear system","score":0.44171133637428284},{"id":"https://openalex.org/keywords/separable-space","display_name":"Separable space","score":0.4123411178588867},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.402249276638031},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.35135236382484436},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.21790114045143127},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.15341708064079285}],"concepts":[{"id":"https://openalex.org/C32834561","wikidata":"https://www.wikidata.org/wiki/Q660730","display_name":"Subspace topology","level":2,"score":0.7160148620605469},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6641515493392944},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.598278284072876},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.5865626335144043},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.5817728042602539},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.535006582736969},{"id":"https://openalex.org/C156778621","wikidata":"https://www.wikidata.org/wiki/Q1365748","display_name":"Spectrum (functional analysis)","level":2,"score":0.5100424885749817},{"id":"https://openalex.org/C185142706","wikidata":"https://www.wikidata.org/wiki/Q1134404","display_name":"Covariance matrix","level":2,"score":0.48063626885414124},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.45469820499420166},{"id":"https://openalex.org/C167928553","wikidata":"https://www.wikidata.org/wiki/Q1376021","display_name":"Estimation theory","level":2,"score":0.4508287310600281},{"id":"https://openalex.org/C158622935","wikidata":"https://www.wikidata.org/wiki/Q660848","display_name":"Nonlinear system","level":2,"score":0.44171133637428284},{"id":"https://openalex.org/C70710897","wikidata":"https://www.wikidata.org/wiki/Q680081","display_name":"Separable space","level":2,"score":0.4123411178588867},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.402249276638031},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.35135236382484436},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.21790114045143127},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.15341708064079285},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lcomm.2019.2930703","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2019.2930703","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":[],"awards":[{"id":"https://openalex.org/G4400314737","display_name":null,"funder_award_id":"NY218009","funder_id":"https://openalex.org/F4320323268","funder_display_name":"Nanjing University of Posts and Telecommunications"},{"id":"https://openalex.org/G7872219757","display_name":null,"funder_award_id":"U1805262","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8282229737","display_name":null,"funder_award_id":"61671251","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/F4320323268","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W250076511","https://openalex.org/W1586554030","https://openalex.org/W1829169350","https://openalex.org/W2018252898","https://openalex.org/W2064511203","https://openalex.org/W2103972037","https://openalex.org/W2111113050","https://openalex.org/W2128437712","https://openalex.org/W2128513990","https://openalex.org/W2145013959","https://openalex.org/W2237176355","https://openalex.org/W2792090252","https://openalex.org/W2963151934","https://openalex.org/W3103899195","https://openalex.org/W3106282754"],"related_works":["https://openalex.org/W1980381208","https://openalex.org/W2364594919","https://openalex.org/W1861706286","https://openalex.org/W2009525028","https://openalex.org/W2219338811","https://openalex.org/W4321064619","https://openalex.org/W2167092671","https://openalex.org/W2149583853","https://openalex.org/W2143002539","https://openalex.org/W4317932689"],"abstract_inverted_index":{"In":[0],"massive":[1],"multiple":[2,4],"input":[3],"output":[5],"systems,":[6],"the":[7,35,38,45,71,75,81,85,89,100,105,131,134,145,148],"nonlinear":[8],"channel":[9,114,135],"estimation":[10,115,136],"method":[11,63],"has":[12],"been":[13],"initially":[14],"proved":[15],"to":[16,28,99,129],"completely":[17],"eliminate":[18],"pilot":[19,108,118],"contamination,":[20],"which":[21,139],"is":[22,64,120,140],"based":[23],"on":[24],"spectrum":[25,53,83,151],"separation":[26,54],"theory":[27],"remove":[29],"interference":[30],"through":[31],"projecting":[32,143],"it":[33],"onto":[34,144],"subspace":[36,146],"of":[37,44,74,84,88,107,133,147,155],"desired":[39],"signal.":[40],"However,":[41],"in":[42,66,104],"view":[43],"existing":[46],"system":[47,60,77],"parameters":[48],"design":[49,62],"for":[50],"ensuring":[51],"exact":[52],"being":[55],"not":[56],"accurate,":[57],"a":[58,110],"hierarchical":[59],"parameter":[61],"proposed":[65,101],"this":[67],"letter.":[68],"It":[69,122],"clarifies":[70],"different":[72,76],"functions":[73],"parameters,":[78],"so":[79],"that":[80],"asymptotic":[82,150],"covariance":[86],"matrix":[87],"received":[90],"signal":[91],"could":[92],"be":[93],"more":[94,160],"accurately":[95],"separated.":[96],"Furthermore,":[97],"according":[98],"numerical":[102],"algorithm,":[103],"presence":[106],"interference,":[109],"better":[111],"tradeoff":[112],"between":[113],"quality":[116,137],"and":[117],"overhead":[119],"given.":[121],"uses":[123],"pilots":[124],"as":[125,127],"few":[126],"possible":[128],"obtain":[130],"most":[132],"gain,":[138],"brought":[141],"by":[142],"separable":[149],"described":[152],"above.":[153],"All":[154],"these":[156],"make":[157],"our":[158],"approach":[159],"practical.":[161]},"counts_by_year":[{"year":2019,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}