{"id":"https://openalex.org/W1994780277","doi":"https://doi.org/10.1109/icassp.2013.6638625","title":"Pilot design for MIMO channel estimation: An alternative to the Kronecker structure assumption","display_name":"Pilot design for MIMO channel estimation: An alternative to the Kronecker structure assumption","publication_year":2013,"publication_date":"2013-05-01","ids":{"openalex":"https://openalex.org/W1994780277","doi":"https://doi.org/10.1109/icassp.2013.6638625","mag":"1994780277"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2013.6638625","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2013.6638625","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2013 IEEE International Conference on Acoustics, Speech and Signal Processing","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-140051","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5046184743","display_name":"John T. Fl\u00e5m","orcid":null},"institutions":[{"id":"https://openalex.org/I204778367","display_name":"Norwegian University of Science and Technology","ror":"https://ror.org/05xg72x27","country_code":"NO","type":"education","lineage":["https://openalex.org/I204778367"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"John Flam","raw_affiliation_strings":["Department of Electronics and Telecommunications, NTNU, Trondheim, Norway","Dept. of Electron. & Telecommun., NTNU, Trondheim, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronics and Telecommunications, NTNU, Trondheim, Norway","institution_ids":["https://openalex.org/I204778367"]},{"raw_affiliation_string":"Dept. of Electron. & Telecommun., NTNU, Trondheim, Norway","institution_ids":["https://openalex.org/I204778367"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062293532","display_name":"Emil Bj\u00f6rnson","orcid":"https://orcid.org/0000-0002-5954-434X"},"institutions":[{"id":"https://openalex.org/I102475099","display_name":"Sup\u00e9lec","ror":"https://ror.org/00n7gwn90","country_code":"FR","type":"education","lineage":["https://openalex.org/I102475099"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Emil Bjornson","raw_affiliation_strings":["Alcatel-Lucent Dept. on Flexible Radio, SUPELEC, Gif-sur-Yvette, France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Alcatel-Lucent Dept. on Flexible Radio, SUPELEC, Gif-sur-Yvette, France","institution_ids":["https://openalex.org/I102475099"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101692633","display_name":"Saikat Chatterjee","orcid":"https://orcid.org/0000-0003-2638-6047"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Saikat Chatterjee","raw_affiliation_strings":["School of Electrical Engineering, KTH Royal Institute of Technology, Stockholm, Sweden","Sch. of Electr. Eng., KTH R. Inst. of Technol., Stockholm, Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, KTH Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]},{"raw_affiliation_string":"Sch. of Electr. Eng., KTH R. Inst. of Technol., Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.4057,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.49738455,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"5061","last_page":"5064"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9998999834060669,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9998999834060669,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9994999766349792,"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/T10931","display_name":"Direction-of-Arrival Estimation Techniques","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/kronecker-delta","display_name":"Kronecker delta","score":0.870659351348877},{"id":"https://openalex.org/keywords/covariance","display_name":"Covariance","score":0.5871596336364746},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.5296157598495483},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5144022107124329},{"id":"https://openalex.org/keywords/constraint","display_name":"Constraint (computer-aided design)","score":0.5112571716308594},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.49346792697906494},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.48456230759620667},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.4502137303352356},{"id":"https://openalex.org/keywords/minification","display_name":"Minification","score":0.4444769322872162},{"id":"https://openalex.org/keywords/convex-optimization","display_name":"Convex optimization","score":0.4183703660964966},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.41567739844322205},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4137466251850128},{"id":"https://openalex.org/keywords/applied-mathematics","display_name":"Applied mathematics","score":0.363365113735199},{"id":"https://openalex.org/keywords/regular-polygon","display_name":"Regular polygon","score":0.3208809494972229},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.10416945815086365}],"concepts":[{"id":"https://openalex.org/C39482219","wikidata":"https://www.wikidata.org/wiki/Q192826","display_name":"Kronecker delta","level":2,"score":0.870659351348877},{"id":"https://openalex.org/C178650346","wikidata":"https://www.wikidata.org/wiki/Q201984","display_name":"Covariance","level":2,"score":0.5871596336364746},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.5296157598495483},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5144022107124329},{"id":"https://openalex.org/C2776036281","wikidata":"https://www.wikidata.org/wiki/Q48769818","display_name":"Constraint (computer-aided design)","level":2,"score":0.5112571716308594},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.49346792697906494},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.48456230759620667},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.4502137303352356},{"id":"https://openalex.org/C147764199","wikidata":"https://www.wikidata.org/wiki/Q6865248","display_name":"Minification","level":2,"score":0.4444769322872162},{"id":"https://openalex.org/C157972887","wikidata":"https://www.wikidata.org/wiki/Q463359","display_name":"Convex optimization","level":3,"score":0.4183703660964966},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.41567739844322205},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4137466251850128},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.363365113735199},{"id":"https://openalex.org/C112680207","wikidata":"https://www.wikidata.org/wiki/Q714886","display_name":"Regular polygon","level":2,"score":0.3208809494972229},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.10416945815086365},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"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":2,"locations":[{"id":"doi:10.1109/icassp.2013.6638625","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2013.6638625","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2013 IEEE International Conference on Acoustics, Speech and Signal Processing","raw_type":"proceedings-article"},{"id":"pmh:oai:DiVA.org:kth-140051","is_oa":true,"landing_page_url":"http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-140051","pdf_url":null,"source":{"id":"https://openalex.org/S4306401559","display_name":"KTH Publication Database DiVA (KTH Royal Institute of Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I86987016","host_organization_name":"KTH Royal Institute of Technology","host_organization_lineage":["https://openalex.org/I86987016"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/conferenceObject"}],"best_oa_location":{"id":"pmh:oai:DiVA.org:kth-140051","is_oa":true,"landing_page_url":"http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-140051","pdf_url":null,"source":{"id":"https://openalex.org/S4306401559","display_name":"KTH Publication Database DiVA (KTH Royal Institute of Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I86987016","host_organization_name":"KTH Royal Institute of Technology","host_organization_lineage":["https://openalex.org/I86987016"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/conferenceObject"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":7,"referenced_works":["https://openalex.org/W2022939180","https://openalex.org/W2064191652","https://openalex.org/W2113157322","https://openalex.org/W2119163179","https://openalex.org/W2130134073","https://openalex.org/W2130450372","https://openalex.org/W2607928667"],"related_works":["https://openalex.org/W3153509215","https://openalex.org/W4301793409","https://openalex.org/W2952308006","https://openalex.org/W1986375199","https://openalex.org/W300594107","https://openalex.org/W1178061417","https://openalex.org/W2028667466","https://openalex.org/W2789582299","https://openalex.org/W3033877930","https://openalex.org/W2323318744"],"abstract_inverted_index":{"This":[0],"work":[1],"seeks":[2],"to":[3],"design":[4],"a":[5,9,51],"pilot":[6,40,91],"signal,":[7],"under":[8,100],"power":[10],"constraint,":[11],"such":[12],"that":[13,86,93],"the":[14,34,39,56,66,72,101],"channel":[15],"can":[16],"be":[17],"estimated":[18],"with":[19],"minimum":[20],"mean":[21],"square":[22],"error.":[23],"The":[24],"procedure":[25,88],"we":[26,49,70],"derive":[27],"does":[28],"not":[29],"assume":[30],"Kronecker":[31,102],"structure":[32,103],"on":[33],"underlying":[35],"covariance":[36],"matrices,":[37],"and":[38],"signal":[41],"is":[42,63],"obtained":[43,99],"in":[44],"three":[45],"main":[46],"steps.":[47],"Firstly,":[48],"solve":[50],"relaxed":[52],"convex":[53],"version":[54],"of":[55],"original":[57],"minimization":[58],"problem.":[59],"Secondly,":[60],"its":[61],"solution":[62,74],"projected":[64,73],"onto":[65],"feasible":[67],"set.":[68],"Thirdly":[69],"use":[71],"as":[75],"starting":[76],"point":[77],"for":[78],"an":[79],"augmented":[80],"Lagrangian":[81],"method.":[82],"Numerical":[83],"experiments":[84],"indicate":[85],"this":[87],"may":[89],"produce":[90],"signals":[92],"are":[94],"far":[95],"better":[96],"than":[97],"those":[98],"assumption.":[104]},"counts_by_year":[{"year":2016,"cited_by_count":1}],"updated_date":"2026-08-13T07:04:57.449891","created_date":"2025-10-10T00:00:00"}
