{"id":"https://openalex.org/W2170715321","doi":"https://doi.org/10.1109/pimrc.2007.4394247","title":"Enhanced Decision-Directed Channel Estimation of Time-Varying Flat MIMO Channels","display_name":"Enhanced Decision-Directed Channel Estimation of Time-Varying Flat MIMO Channels","publication_year":2007,"publication_date":"2007-01-01","ids":{"openalex":"https://openalex.org/W2170715321","doi":"https://doi.org/10.1109/pimrc.2007.4394247","mag":"2170715321"},"language":"en","primary_location":{"id":"doi:10.1109/pimrc.2007.4394247","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2007.4394247","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications","raw_type":"proceedings-article"},"type":"conference-paper","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/A5075101485","display_name":"Emna Eitel","orcid":null},"institutions":[{"id":"https://openalex.org/I100066346","display_name":"University of Stuttgart","ror":"https://ror.org/04vnq7t77","country_code":"DE","type":"education","lineage":["https://openalex.org/I100066346"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Emna Eitel","raw_affiliation_strings":["Institute of Telecommunications, University of Stuttgart, Stuttgart, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Telecommunications, University of Stuttgart, Stuttgart, Germany","institution_ids":["https://openalex.org/I100066346"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5084271095","display_name":"Joachim Speidel","orcid":"https://orcid.org/0000-0001-6026-5877"},"institutions":[{"id":"https://openalex.org/I100066346","display_name":"University of Stuttgart","ror":"https://ror.org/04vnq7t77","country_code":"DE","type":"education","lineage":["https://openalex.org/I100066346"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Joachim Speidel","raw_affiliation_strings":["Institute of Telecommunications, University of Stuttgart, Stuttgart, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Telecommunications, University of Stuttgart, Stuttgart, Germany","institution_ids":["https://openalex.org/I100066346"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I100066346"],"apc_list":null,"apc_paid":null,"fwci":0.4991,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.65441015,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9997000098228455,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9997000098228455,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9986000061035156,"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/T11233","display_name":"Advanced Adaptive Filtering Techniques","score":0.9980999827384949,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/robustness","display_name":"Robustness (evolution)","score":0.8059597611427307},{"id":"https://openalex.org/keywords/initialization","display_name":"Initialization","score":0.7274401187896729},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6825846433639526},{"id":"https://openalex.org/keywords/rayleigh-fading","display_name":"Rayleigh fading","score":0.6813163161277771},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6381422877311707},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.6258049011230469},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.5449697971343994},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5284768342971802},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.44051557779312134},{"id":"https://openalex.org/keywords/doppler-effect","display_name":"Doppler effect","score":0.4371086359024048},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.4228828251361847},{"id":"https://openalex.org/keywords/rayleigh-scattering","display_name":"Rayleigh scattering","score":0.4208529591560364},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3651265501976013},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2065143883228302},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.17673444747924805},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.08057993650436401},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.06322917342185974}],"concepts":[{"id":"https://openalex.org/C63479239","wikidata":"https://www.wikidata.org/wiki/Q7353546","display_name":"Robustness (evolution)","level":3,"score":0.8059597611427307},{"id":"https://openalex.org/C114466953","wikidata":"https://www.wikidata.org/wiki/Q6034165","display_name":"Initialization","level":2,"score":0.7274401187896729},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6825846433639526},{"id":"https://openalex.org/C56985126","wikidata":"https://www.wikidata.org/wiki/Q854039","display_name":"Rayleigh fading","level":4,"score":0.6813163161277771},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6381422877311707},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.6258049011230469},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.5449697971343994},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5284768342971802},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.44051557779312134},{"id":"https://openalex.org/C142757262","wikidata":"https://www.wikidata.org/wiki/Q76436","display_name":"Doppler effect","level":2,"score":0.4371086359024048},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.4228828251361847},{"id":"https://openalex.org/C46244369","wikidata":"https://www.wikidata.org/wiki/Q193709","display_name":"Rayleigh scattering","level":2,"score":0.4208529591560364},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3651265501976013},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2065143883228302},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.17673444747924805},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.08057993650436401},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.06322917342185974},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","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/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","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/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/pimrc.2007.4394247","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2007.4394247","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","score":0.6899999976158142,"display_name":"Peace, Justice and strong institutions"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W250076511","https://openalex.org/W1492221128","https://openalex.org/W1909758982","https://openalex.org/W1965392255","https://openalex.org/W1999542175","https://openalex.org/W2051548749","https://openalex.org/W2112917583","https://openalex.org/W2117577252","https://openalex.org/W2132145956","https://openalex.org/W2135030479","https://openalex.org/W2168081155","https://openalex.org/W2168998999"],"related_works":["https://openalex.org/W2116044594","https://openalex.org/W2101999641","https://openalex.org/W1503152075","https://openalex.org/W301676527","https://openalex.org/W2052600062","https://openalex.org/W2124541664","https://openalex.org/W289296924","https://openalex.org/W2122920812","https://openalex.org/W2076148615","https://openalex.org/W2942696422"],"abstract_inverted_index":{"This":[0],"paper":[1],"presents":[2],"a":[3,11,38],"combined":[4],"pilot-assisted":[5],"and":[6,33,45,55],"decision-directed":[7],"approach":[8],"to":[9,25,30,41,59],"estimate":[10],"Rayleigh":[12],"flat":[13],"fading":[14],"MIMO":[15],"channel.":[16],"The":[17],"suggested":[18],"algorithm":[19],"is":[20],"very":[21],"attractive":[22],"in":[23],"comparison":[24],"other":[26],"tracking":[27],"techniques":[28],"due":[29],"its":[31],"simplicity":[32],"numerical":[34],"robustness.":[35],"We":[36],"introduce":[37],"moving-average":[39],"filter":[40,50],"suppress":[42],"the":[43,49,70,73],"noise":[44],"show":[46,69],"that":[47],"optimizing":[48],"parameters":[51],"such":[52],"as":[53],"length":[54],"initialization":[56],"coefficients":[57],"leads":[58],"significant":[60],"performance":[61],"improvement.":[62],"Simulation":[63],"results":[64],"for":[65],"different":[66],"Doppler":[67],"frequencies":[68],"effectiveness":[71],"of":[72],"proposed":[74],"scheme.":[75]},"counts_by_year":[{"year":2013,"cited_by_count":1}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}