{"id":"https://openalex.org/W2963106409","doi":"https://doi.org/10.1109/iwcmc.2019.8766618","title":"ML EM Estimation of Fast Time-Varying OFDM-Type Channels","display_name":"ML EM Estimation of Fast Time-Varying OFDM-Type Channels","publication_year":2019,"publication_date":"2019-06-01","ids":{"openalex":"https://openalex.org/W2963106409","doi":"https://doi.org/10.1109/iwcmc.2019.8766618","mag":"2963106409"},"language":"en","primary_location":{"id":"doi:10.1109/iwcmc.2019.8766618","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iwcmc.2019.8766618","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2019 15th International Wireless Communications & Mobile Computing Conference (IWCMC)","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/A5070888928","display_name":"Souheib Ben Amor","orcid":"https://orcid.org/0000-0002-3441-3466"},"institutions":[{"id":"https://openalex.org/I159129438","display_name":"Universit\u00e9 du Qu\u00e9bec \u00e0 Montr\u00e9al","ror":"https://ror.org/002rjbv21","country_code":"CA","type":"education","lineage":["https://openalex.org/I159129438","https://openalex.org/I49663120"]},{"id":"https://openalex.org/I39481719","display_name":"Institut National de la Recherche Scientifique","ror":"https://ror.org/04td37d32","country_code":"CA","type":"education","lineage":["https://openalex.org/I39481719","https://openalex.org/I49663120"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Souheib Ben Amor","raw_affiliation_strings":["INRS-EMT, Universit\u00e9 du Qu\u00e9bec, Montr\u00e9al, QC, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"INRS-EMT, Universit\u00e9 du Qu\u00e9bec, Montr\u00e9al, QC, Canada","institution_ids":["https://openalex.org/I159129438","https://openalex.org/I39481719"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076850812","display_name":"Sofi\u00e8ne Affes","orcid":"https://orcid.org/0000-0002-1729-3503"},"institutions":[{"id":"https://openalex.org/I159129438","display_name":"Universit\u00e9 du Qu\u00e9bec \u00e0 Montr\u00e9al","ror":"https://ror.org/002rjbv21","country_code":"CA","type":"education","lineage":["https://openalex.org/I159129438","https://openalex.org/I49663120"]},{"id":"https://openalex.org/I39481719","display_name":"Institut National de la Recherche Scientifique","ror":"https://ror.org/04td37d32","country_code":"CA","type":"education","lineage":["https://openalex.org/I39481719","https://openalex.org/I49663120"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Sofiene Affes","raw_affiliation_strings":["INRS-EMT, Universit\u00e9 du Qu\u00e9bec, Montr\u00e9al, QC, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"INRS-EMT, Universit\u00e9 du Qu\u00e9bec, Montr\u00e9al, QC, Canada","institution_ids":["https://openalex.org/I159129438","https://openalex.org/I39481719"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5003619912","display_name":"Faouzi Bellili","orcid":"https://orcid.org/0000-0001-6630-6561"},"institutions":[{"id":"https://openalex.org/I46247651","display_name":"University of Manitoba","ror":"https://ror.org/02gfys938","country_code":"CA","type":"education","lineage":["https://openalex.org/I46247651"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Faouzi Bellili","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Manitoba, Winnipeg, MB, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Manitoba, Winnipeg, MB, Canada","institution_ids":["https://openalex.org/I46247651"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.2422,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.55021447,"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":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":1.0,"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":1.0,"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/T10575","display_name":"Wireless Communication Networks Research","score":0.9994999766349792,"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"}},{"id":"https://openalex.org/T11873","display_name":"PAPR reduction in OFDM","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"}}],"keywords":[{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.8631564974784851},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.7270439863204956},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5981150269508362},{"id":"https://openalex.org/keywords/multipath-propagation","display_name":"Multipath propagation","score":0.5752830505371094},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5169357657432556},{"id":"https://openalex.org/keywords/maximization","display_name":"Maximization","score":0.5021138191223145},{"id":"https://openalex.org/keywords/expectation\u2013maximization-algorithm","display_name":"Expectation\u2013maximization algorithm","score":0.5019066333770752},{"id":"https://openalex.org/keywords/nonlinear-system","display_name":"Nonlinear system","score":0.4674328863620758},{"id":"https://openalex.org/keywords/multiplexing","display_name":"Multiplexing","score":0.46058008074760437},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.45859044790267944},{"id":"https://openalex.org/keywords/maximum-likelihood","display_name":"Maximum likelihood","score":0.45057234168052673},{"id":"https://openalex.org/keywords/function","display_name":"Function (biology)","score":0.4405049979686737},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.41894158720970154},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.31734591722488403},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.21227189898490906},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.19499385356903076}],"concepts":[{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.8631564974784851},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.7270439863204956},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5981150269508362},{"id":"https://openalex.org/C161218011","wikidata":"https://www.wikidata.org/wiki/Q11827794","display_name":"Multipath propagation","level":3,"score":0.5752830505371094},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5169357657432556},{"id":"https://openalex.org/C2776330181","wikidata":"https://www.wikidata.org/wiki/Q18358244","display_name":"Maximization","level":2,"score":0.5021138191223145},{"id":"https://openalex.org/C182081679","wikidata":"https://www.wikidata.org/wiki/Q1275153","display_name":"Expectation\u2013maximization algorithm","level":3,"score":0.5019066333770752},{"id":"https://openalex.org/C158622935","wikidata":"https://www.wikidata.org/wiki/Q660848","display_name":"Nonlinear system","level":2,"score":0.4674328863620758},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.46058008074760437},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.45859044790267944},{"id":"https://openalex.org/C49781872","wikidata":"https://www.wikidata.org/wiki/Q1045555","display_name":"Maximum likelihood","level":2,"score":0.45057234168052673},{"id":"https://openalex.org/C14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","level":2,"score":0.4405049979686737},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.41894158720970154},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.31734591722488403},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.21227189898490906},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.19499385356903076},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C78458016","wikidata":"https://www.wikidata.org/wiki/Q840400","display_name":"Evolutionary biology","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/iwcmc.2019.8766618","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iwcmc.2019.8766618","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2019 15th International Wireless Communications & Mobile Computing Conference (IWCMC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W2000415064","https://openalex.org/W2019308884","https://openalex.org/W2053850706","https://openalex.org/W2111819913","https://openalex.org/W2131616141","https://openalex.org/W2132879427","https://openalex.org/W2138401324","https://openalex.org/W2138824526","https://openalex.org/W2169790383"],"related_works":["https://openalex.org/W1978153144","https://openalex.org/W102848802","https://openalex.org/W1976188970","https://openalex.org/W2982058819","https://openalex.org/W2130734797","https://openalex.org/W3176361882","https://openalex.org/W2025556230","https://openalex.org/W2889559465","https://openalex.org/W2150061385","https://openalex.org/W2990541822"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3,35,52],"investigate":[4],"the":[5,37,42,47,55,69,77],"problem":[6],"of":[7],"fast":[8],"time-varying":[9],"multipath":[10,91],"channel":[11],"estimation":[12],"over":[13],"orthogonal":[14],"frequency-division":[15],"multiplexing":[16],"(OFDM)-type":[17],"transmissions.":[18],"We":[19],"do":[20],"so":[21],"by":[22],"tracking":[23],"each":[24],"complex":[25],"gain":[26],"variation":[27],"using":[28],"a":[29],"polynomial-in-time":[30],"expansion.":[31],"To":[32],"that":[33,68],"end,":[34],"derive":[36],"log-likelihood":[38],"function":[39],"(LLF)":[40],"in":[41,95],"non-data-aided":[43],"(NDA)":[44],"case.":[45],"Since":[46],"LLF":[48],"is":[49,72],"extremely":[50],"nonlinear,":[51],"opt":[53],"for":[54,89],"expectation":[56],"maximization":[57],"(EM)":[58],"concept":[59],"to":[60,74,76,85],"find":[61],"its":[62],"global":[63,78],"maximum.":[64],"Simulation":[65],"results":[66],"show":[67],"new":[70],"estimator":[71],"able":[73],"converge":[75],"maximum":[79],"within":[80],"few":[81],"iterations":[82],"only":[83],"and":[84,98],"provide":[86],"accurate":[87],"estimates":[88],"all":[90],"gains,":[92],"thereby":[93],"resulting":[94],"significant":[96],"BER":[97],"link-level":[99],"throughput":[100],"gains.":[101]},"counts_by_year":[{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}