{"id":"https://openalex.org/W2149752844","doi":"https://doi.org/10.1109/icassp.2009.4960150","title":"Blind noise variance estimation for OFDMA signals","display_name":"Blind noise variance estimation for OFDMA signals","publication_year":2009,"publication_date":"2009-04-01","ids":{"openalex":"https://openalex.org/W2149752844","doi":"https://doi.org/10.1109/icassp.2009.4960150","mag":"2149752844"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2009.4960150","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2009.4960150","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Conference on Acoustics, Speech and Signal Processing","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://hal.science/hal-00486766","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5006736115","display_name":"Fran\u00e7ois-Xavier Socheleau","orcid":"https://orcid.org/0000-0003-0974-5191"},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I161929037","display_name":"Universit\u00e9 de Bretagne Occidentale","ror":"https://ror.org/01b8h3982","country_code":"FR","type":"education","lineage":["https://openalex.org/I161929037"]},{"id":"https://openalex.org/I205703379","display_name":"Institut Mines-T\u00e9l\u00e9com","ror":"https://ror.org/025vp2923","country_code":"FR","type":"facility","lineage":["https://openalex.org/I205703379"]},{"id":"https://openalex.org/I4210123702","display_name":"Laboratoire des Sciences et Techniques de l\u2019Information de la Communication et de la Connaissance","ror":"https://ror.org/0266kfd37","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I180375564","https://openalex.org/I201181511","https://openalex.org/I205703379","https://openalex.org/I2802204017","https://openalex.org/I4210123702","https://openalex.org/I4210127572","https://openalex.org/I4210145102","https://openalex.org/I4210148559","https://openalex.org/I4210159245","https://openalex.org/I4405260085"]},{"id":"https://openalex.org/I126425946","display_name":"Universit\u00e9 Europ\u00e9enne de Bretagne","ror":"https://ror.org/033c46s90","country_code":"FR","type":"education","lineage":["https://openalex.org/I126425946"]}],"countries":["FR"],"is_corresponding":true,"raw_author_name":"Francois-Xavier Socheleau","raw_affiliation_strings":["Institut TELECOM; TELECOM Bretagne; UMR CNRS 3192 Lab-STICC, Universit\u00e9 europ\u00e9enne de Bretagne, France","UMR CNRS 3192 Lab-STICC, Universit\u00e9 europ\u00e9enne de Bretagne, France","TELECOM Bretagne","Institut TELECOM"],"affiliations":[{"raw_affiliation_string":"Institut TELECOM; TELECOM Bretagne; UMR CNRS 3192 Lab-STICC, Universit\u00e9 europ\u00e9enne de Bretagne, France","institution_ids":["https://openalex.org/I1294671590","https://openalex.org/I161929037","https://openalex.org/I205703379","https://openalex.org/I4210123702","https://openalex.org/I126425946"]},{"raw_affiliation_string":"UMR CNRS 3192 Lab-STICC, Universit\u00e9 europ\u00e9enne de Bretagne, France","institution_ids":["https://openalex.org/I126425946","https://openalex.org/I1294671590","https://openalex.org/I161929037","https://openalex.org/I4210123702"]},{"raw_affiliation_string":"TELECOM Bretagne","institution_ids":[]},{"raw_affiliation_string":"Institut TELECOM","institution_ids":["https://openalex.org/I205703379"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070406096","display_name":"Dominique Pastor","orcid":"https://orcid.org/0000-0001-5717-5918"},"institutions":[{"id":"https://openalex.org/I4210123702","display_name":"Laboratoire des Sciences et Techniques de l\u2019Information de la Communication et de la Connaissance","ror":"https://ror.org/0266kfd37","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I180375564","https://openalex.org/I201181511","https://openalex.org/I205703379","https://openalex.org/I2802204017","https://openalex.org/I4210123702","https://openalex.org/I4210127572","https://openalex.org/I4210145102","https://openalex.org/I4210148559","https://openalex.org/I4210159245","https://openalex.org/I4405260085"]},{"id":"https://openalex.org/I161929037","display_name":"Universit\u00e9 de Bretagne Occidentale","ror":"https://ror.org/01b8h3982","country_code":"FR","type":"education","lineage":["https://openalex.org/I161929037"]},{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I205703379","display_name":"Institut Mines-T\u00e9l\u00e9com","ror":"https://ror.org/025vp2923","country_code":"FR","type":"facility","lineage":["https://openalex.org/I205703379"]},{"id":"https://openalex.org/I126425946","display_name":"Universit\u00e9 Europ\u00e9enne de Bretagne","ror":"https://ror.org/033c46s90","country_code":"FR","type":"education","lineage":["https://openalex.org/I126425946"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Dominique Pastor","raw_affiliation_strings":["Institut TELECOM; TELECOM Bretagne; UMR CNRS 3192 Lab-STICC, Universit\u00e9 europ\u00e9enne de Bretagne, France","Institut TELECOM","UMR CNRS 3192 Lab-STICC, Universit\u00e9 europ\u00e9enne de Bretagne, France","TELECOM Bretagne"],"affiliations":[{"raw_affiliation_string":"Institut TELECOM; TELECOM Bretagne; UMR CNRS 3192 Lab-STICC, Universit\u00e9 europ\u00e9enne de Bretagne, France","institution_ids":["https://openalex.org/I1294671590","https://openalex.org/I161929037","https://openalex.org/I205703379","https://openalex.org/I4210123702","https://openalex.org/I126425946"]},{"raw_affiliation_string":"Institut TELECOM","institution_ids":["https://openalex.org/I205703379"]},{"raw_affiliation_string":"UMR CNRS 3192 Lab-STICC, Universit\u00e9 europ\u00e9enne de Bretagne, France","institution_ids":["https://openalex.org/I126425946","https://openalex.org/I1294671590","https://openalex.org/I161929037","https://openalex.org/I4210123702"]},{"raw_affiliation_string":"TELECOM Bretagne","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001655543","display_name":"Abdeldjalil A\u00efssa El Bey","orcid":"https://orcid.org/0000-0002-6267-3118"},"institutions":[{"id":"https://openalex.org/I161929037","display_name":"Universit\u00e9 de Bretagne Occidentale","ror":"https://ror.org/01b8h3982","country_code":"FR","type":"education","lineage":["https://openalex.org/I161929037"]},{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I4210123702","display_name":"Laboratoire des Sciences et Techniques de l\u2019Information de la Communication et de la Connaissance","ror":"https://ror.org/0266kfd37","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I180375564","https://openalex.org/I201181511","https://openalex.org/I205703379","https://openalex.org/I2802204017","https://openalex.org/I4210123702","https://openalex.org/I4210127572","https://openalex.org/I4210145102","https://openalex.org/I4210148559","https://openalex.org/I4210159245","https://openalex.org/I4405260085"]},{"id":"https://openalex.org/I205703379","display_name":"Institut Mines-T\u00e9l\u00e9com","ror":"https://ror.org/025vp2923","country_code":"FR","type":"facility","lineage":["https://openalex.org/I205703379"]},{"id":"https://openalex.org/I126425946","display_name":"Universit\u00e9 Europ\u00e9enne de Bretagne","ror":"https://ror.org/033c46s90","country_code":"FR","type":"education","lineage":["https://openalex.org/I126425946"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Abdeldjalil Aissa-El-Bey","raw_affiliation_strings":["Institut TELECOM; TELECOM Bretagne; UMR CNRS 3192 Lab-STICC, Universit\u00e9 europ\u00e9enne de Bretagne, France","Institut TELECOM","TELECOM Bretagne","UMR CNRS 3192 Lab-STICC, Universit\u00e9 europ\u00e9enne de Bretagne, France"],"affiliations":[{"raw_affiliation_string":"Institut TELECOM; TELECOM Bretagne; UMR CNRS 3192 Lab-STICC, Universit\u00e9 europ\u00e9enne de Bretagne, France","institution_ids":["https://openalex.org/I1294671590","https://openalex.org/I161929037","https://openalex.org/I205703379","https://openalex.org/I4210123702","https://openalex.org/I126425946"]},{"raw_affiliation_string":"Institut TELECOM","institution_ids":["https://openalex.org/I205703379"]},{"raw_affiliation_string":"TELECOM Bretagne","institution_ids":[]},{"raw_affiliation_string":"UMR CNRS 3192 Lab-STICC, Universit\u00e9 europ\u00e9enne de Bretagne, France","institution_ids":["https://openalex.org/I126425946","https://openalex.org/I1294671590","https://openalex.org/I161929037","https://openalex.org/I4210123702"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5006304808","display_name":"S\u00e9bastien Houcke","orcid":"https://orcid.org/0000-0003-0009-6789"},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I161929037","display_name":"Universit\u00e9 de Bretagne Occidentale","ror":"https://ror.org/01b8h3982","country_code":"FR","type":"education","lineage":["https://openalex.org/I161929037"]},{"id":"https://openalex.org/I126425946","display_name":"Universit\u00e9 Europ\u00e9enne de Bretagne","ror":"https://ror.org/033c46s90","country_code":"FR","type":"education","lineage":["https://openalex.org/I126425946"]},{"id":"https://openalex.org/I205703379","display_name":"Institut Mines-T\u00e9l\u00e9com","ror":"https://ror.org/025vp2923","country_code":"FR","type":"facility","lineage":["https://openalex.org/I205703379"]},{"id":"https://openalex.org/I4210123702","display_name":"Laboratoire des Sciences et Techniques de l\u2019Information de la Communication et de la Connaissance","ror":"https://ror.org/0266kfd37","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I180375564","https://openalex.org/I201181511","https://openalex.org/I205703379","https://openalex.org/I2802204017","https://openalex.org/I4210123702","https://openalex.org/I4210127572","https://openalex.org/I4210145102","https://openalex.org/I4210148559","https://openalex.org/I4210159245","https://openalex.org/I4405260085"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Sebastien Houcke","raw_affiliation_strings":["Institut TELECOM; TELECOM Bretagne; UMR CNRS 3192 Lab-STICC, Universit\u00e9 europ\u00e9enne de Bretagne, France","UMR CNRS 3192 Lab-STICC, Universit\u00e9 europ\u00e9enne de Bretagne, France","TELECOM Bretagne","Institut TELECOM"],"affiliations":[{"raw_affiliation_string":"Institut TELECOM; TELECOM Bretagne; UMR CNRS 3192 Lab-STICC, Universit\u00e9 europ\u00e9enne de Bretagne, France","institution_ids":["https://openalex.org/I1294671590","https://openalex.org/I161929037","https://openalex.org/I205703379","https://openalex.org/I4210123702","https://openalex.org/I126425946"]},{"raw_affiliation_string":"UMR CNRS 3192 Lab-STICC, Universit\u00e9 europ\u00e9enne de Bretagne, France","institution_ids":["https://openalex.org/I126425946","https://openalex.org/I1294671590","https://openalex.org/I161929037","https://openalex.org/I4210123702"]},{"raw_affiliation_string":"TELECOM Bretagne","institution_ids":[]},{"raw_affiliation_string":"Institut TELECOM","institution_ids":["https://openalex.org/I205703379"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5006736115"],"corresponding_institution_ids":["https://openalex.org/I126425946","https://openalex.org/I1294671590","https://openalex.org/I161929037","https://openalex.org/I205703379","https://openalex.org/I4210123702"],"apc_list":null,"apc_paid":null,"fwci":1.5241,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.84534809,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"2581","last_page":"2584"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","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/T10125","display_name":"Advanced Wireless Communication Techniques","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/T11447","display_name":"Blind Source Separation Techniques","score":0.9998000264167786,"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"}},{"id":"https://openalex.org/T10575","display_name":"Wireless Communication Networks Research","score":0.9991999864578247,"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/cyclic-prefix","display_name":"Cyclic prefix","score":0.8785176277160645},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7065349817276001},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.6833317875862122},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5646930932998657},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.5474912524223328},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.5239641666412354},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiple-access","display_name":"Orthogonal frequency-division multiple access","score":0.4993743896484375},{"id":"https://openalex.org/keywords/redundancy","display_name":"Redundancy (engineering)","score":0.4780360162258148},{"id":"https://openalex.org/keywords/multipath-propagation","display_name":"Multipath propagation","score":0.4633714556694031},{"id":"https://openalex.org/keywords/cognitive-radio","display_name":"Cognitive radio","score":0.43981409072875977},{"id":"https://openalex.org/keywords/focus","display_name":"Focus (optics)","score":0.41163209080696106},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.404531329870224},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.334434449672699},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.3328798711299896},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.23294907808303833},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.23060691356658936},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.12409645318984985}],"concepts":[{"id":"https://openalex.org/C2778775284","wikidata":"https://www.wikidata.org/wiki/Q5198224","display_name":"Cyclic prefix","level":4,"score":0.8785176277160645},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7065349817276001},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.6833317875862122},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5646930932998657},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.5474912524223328},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.5239641666412354},{"id":"https://openalex.org/C2775907427","wikidata":"https://www.wikidata.org/wiki/Q2697649","display_name":"Orthogonal frequency-division multiple access","level":4,"score":0.4993743896484375},{"id":"https://openalex.org/C152124472","wikidata":"https://www.wikidata.org/wiki/Q1204361","display_name":"Redundancy (engineering)","level":2,"score":0.4780360162258148},{"id":"https://openalex.org/C161218011","wikidata":"https://www.wikidata.org/wiki/Q11827794","display_name":"Multipath propagation","level":3,"score":0.4633714556694031},{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.43981409072875977},{"id":"https://openalex.org/C192209626","wikidata":"https://www.wikidata.org/wiki/Q190909","display_name":"Focus (optics)","level":2,"score":0.41163209080696106},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.404531329870224},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.334434449672699},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.3328798711299896},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.23294907808303833},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.23060691356658936},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.12409645318984985},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"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/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/icassp.2009.4960150","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2009.4960150","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Conference on Acoustics, Speech and Signal Processing","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.331.9805","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.331.9805","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://perso.telecom-bretagne.eu/pastor/data/Papers/Conferences/icassp09_v3.pdf","raw_type":"text"},{"id":"pmh:oai:HAL:hal-00486766v1","is_oa":true,"landing_page_url":"https://hal.science/hal-00486766","pdf_url":null,"source":{"id":"https://openalex.org/S4306402512","display_name":"HAL (Le Centre pour la Communication Scientifique Directe)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1294671590","host_organization_name":"Centre National de la Recherche Scientifique","host_organization_lineage":["https://openalex.org/I1294671590"],"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":"ICASSP 2009 : 34th IEEE International Conference on Acoustics, Speech, and Signal Processing, Apr 2009, Taipei, Taiwan. pp.2581 - 2584, ⟨10.1109/ICASSP.2009.4960150⟩","raw_type":"Conference papers"}],"best_oa_location":{"id":"pmh:oai:HAL:hal-00486766v1","is_oa":true,"landing_page_url":"https://hal.science/hal-00486766","pdf_url":null,"source":{"id":"https://openalex.org/S4306402512","display_name":"HAL (Le Centre pour la Communication Scientifique Directe)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1294671590","host_organization_name":"Centre National de la Recherche Scientifique","host_organization_lineage":["https://openalex.org/I1294671590"],"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":"ICASSP 2009 : 34th IEEE International Conference on Acoustics, Speech, and Signal Processing, Apr 2009, Taipei, Taiwan. pp.2581 - 2584, ⟨10.1109/ICASSP.2009.4960150⟩","raw_type":"Conference papers"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W2009716661","https://openalex.org/W2097206452","https://openalex.org/W2104174839","https://openalex.org/W2108801140","https://openalex.org/W2119857453","https://openalex.org/W2120356274","https://openalex.org/W2142456386","https://openalex.org/W2167960733"],"related_works":["https://openalex.org/W2150900167","https://openalex.org/W2063068004","https://openalex.org/W2070380235","https://openalex.org/W2140745825","https://openalex.org/W2109072943","https://openalex.org/W2373167424","https://openalex.org/W1806094029","https://openalex.org/W1526697276","https://openalex.org/W2088784675","https://openalex.org/W2074760455"],"abstract_inverted_index":{"We":[0,18],"present":[1],"two":[2,51,79],"new":[3],"noise":[4],"variance":[5],"estimation":[6,22],"methods":[7],"for":[8,41],"OFDMA":[9,61],"signals":[10,62],"transmitted":[11],"through":[12],"an":[13],"unknown":[14],"multipath":[15],"fading":[16],"channel.":[17],"focus":[19],"on":[20,56,64],"blind":[21],"as":[23,38],"it":[24],"does":[25],"not":[26],"require":[27],"any":[28],"pilot":[29],"sequences":[30],"and":[31,63,81],"is":[32,48],"therefore":[33],"applicable":[34],"to":[35],"contexts,":[36],"such":[37],"cognitive":[39],"radio":[40],"instance,":[42],"where":[43],"little":[44],"prior":[45],"signal":[46],"knowledge":[47],"available.":[49],"The":[50],"estimators":[52],"are":[53],"respectively":[54],"based":[55],"the":[57,65,69,75,78],"time-frequency":[58],"sparsity":[59],"of":[60,77],"redundancy":[66],"induced":[67],"by":[68],"cyclic":[70],"prefix.":[71],"Numerical":[72],"simulations":[73],"compare":[74],"performance":[76],"algorithms":[80],"highlight":[82],"their":[83],"complementarity.":[84]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}