{"id":"https://openalex.org/W2198154152","doi":"https://doi.org/10.1109/tsp.2015.2477807","title":"Sparse Channel Estimation and Equalization for OFDM-Based Underwater Cooperative Systems With Amplify-and-Forward Relaying","display_name":"Sparse Channel Estimation and Equalization for OFDM-Based Underwater Cooperative Systems With Amplify-and-Forward Relaying","publication_year":2015,"publication_date":"2015-09-11","ids":{"openalex":"https://openalex.org/W2198154152","doi":"https://doi.org/10.1109/tsp.2015.2477807","mag":"2198154152"},"language":"en","primary_location":{"id":"doi:10.1109/tsp.2015.2477807","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tsp.2015.2477807","pdf_url":null,"source":{"id":"https://openalex.org/S168680287","display_name":"IEEE Transactions on Signal Processing","issn_l":"1053-587X","issn":["1053-587X","1941-0476"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["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 Transactions on Signal Processing","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/A5017283708","display_name":"Erdal Panay\u0131rc\u0131","orcid":"https://orcid.org/0000-0001-7328-6626"},"institutions":[{"id":"https://openalex.org/I132286405","display_name":"Kadir Has University","ror":"https://ror.org/03zzckc47","country_code":"TR","type":"education","lineage":["https://openalex.org/I132286405"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Erdal Panayirci","raw_affiliation_strings":["Department of Electrical and Electronics Engineering, Kadir Has University, Istanbul, Turkey","Department of Electrical and Electronics Engineering Kadir Has University Istanbul Turkey"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronics Engineering, Kadir Has University, Istanbul, Turkey","institution_ids":["https://openalex.org/I132286405"]},{"raw_affiliation_string":"Department of Electrical and Electronics Engineering Kadir Has University Istanbul Turkey","institution_ids":["https://openalex.org/I132286405"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066196538","display_name":"Habib \u015eenol","orcid":"https://orcid.org/0000-0001-5724-0839"},"institutions":[{"id":"https://openalex.org/I132286405","display_name":"Kadir Has University","ror":"https://ror.org/03zzckc47","country_code":"TR","type":"education","lineage":["https://openalex.org/I132286405"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Habib Senol","raw_affiliation_strings":["Department of Computer Engineering, Kadir Has University, Istanbul, Turkey","Dept. of Comput. Eng., Kadir Has Univ., Istanbul, Turkey"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Engineering, Kadir Has University, Istanbul, Turkey","institution_ids":["https://openalex.org/I132286405"]},{"raw_affiliation_string":"Dept. of Comput. Eng., Kadir Has Univ., Istanbul, Turkey","institution_ids":["https://openalex.org/I132286405"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018973008","display_name":"Murat Uysal","orcid":"https://orcid.org/0000-0001-5945-0813"},"institutions":[{"id":"https://openalex.org/I44925452","display_name":"\u00d6zye\u011fin University","ror":"https://ror.org/01jjhfr75","country_code":"TR","type":"education","lineage":["https://openalex.org/I44925452"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Murat Uysal","raw_affiliation_strings":["Electrical and Electronics Engineering, \u00d6zyegin University, Istanbul, Turkey","[Electrical and Electronics Engineering, \u00d6zyegin University, Istanbul, Turkey]"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Electrical and Electronics Engineering, \u00d6zyegin University, Istanbul, Turkey","institution_ids":["https://openalex.org/I44925452"]},{"raw_affiliation_string":"[Electrical and Electronics Engineering, \u00d6zyegin University, Istanbul, Turkey]","institution_ids":["https://openalex.org/I44925452"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5042307561","display_name":"H. Vincent Poor","orcid":"https://orcid.org/0000-0002-2062-131X"},"institutions":[{"id":"https://openalex.org/I20089843","display_name":"Princeton University","ror":"https://ror.org/00hx57361","country_code":"US","type":"education","lineage":["https://openalex.org/I20089843"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"H. Vincent Poor","raw_affiliation_strings":["Department of Electrical Engineering, Princeton University, Princeton, NJ, USA","Department of Electrical Engineering Princeton University Princeton NJ USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Princeton University, Princeton, NJ, USA","institution_ids":["https://openalex.org/I20089843"]},{"raw_affiliation_string":"Department of Electrical Engineering Princeton University Princeton NJ USA","institution_ids":["https://openalex.org/I20089843"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":10.468,"has_fulltext":false,"cited_by_count":46,"citation_normalized_percentile":{"value":0.98405645,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":95,"max":99},"biblio":{"volume":"64","issue":"1","first_page":"214","last_page":"228"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11192","display_name":"Underwater Vehicles and Communication Systems","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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/T11192","display_name":"Underwater Vehicles and Communication Systems","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9984999895095825,"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/T10796","display_name":"Cooperative Communication and Network Coding","score":0.996999979019165,"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/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.782291054725647},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.654290497303009},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6469602584838867},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.607293426990509},{"id":"https://openalex.org/keywords/matching-pursuit","display_name":"Matching pursuit","score":0.5987148284912109},{"id":"https://openalex.org/keywords/additive-white-gaussian-noise","display_name":"Additive white Gaussian noise","score":0.5803864002227783},{"id":"https://openalex.org/keywords/equalization","display_name":"Equalization (audio)","score":0.549800455570221},{"id":"https://openalex.org/keywords/frequency-domain","display_name":"Frequency domain","score":0.47622233629226685},{"id":"https://openalex.org/keywords/multiplexing","display_name":"Multiplexing","score":0.4469079077243805},{"id":"https://openalex.org/keywords/underwater-acoustic-communication","display_name":"Underwater acoustic communication","score":0.44157588481903076},{"id":"https://openalex.org/keywords/intersymbol-interference","display_name":"Intersymbol interference","score":0.4403935968875885},{"id":"https://openalex.org/keywords/gaussian-noise","display_name":"Gaussian noise","score":0.4296887516975403},{"id":"https://openalex.org/keywords/maximum-a-posteriori-estimation","display_name":"Maximum a posteriori estimation","score":0.42857787013053894},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.25604987144470215},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2520856261253357},{"id":"https://openalex.org/keywords/underwater","display_name":"Underwater","score":0.18260252475738525},{"id":"https://openalex.org/keywords/compressed-sensing","display_name":"Compressed sensing","score":0.1588563323020935},{"id":"https://openalex.org/keywords/maximum-likelihood","display_name":"Maximum likelihood","score":0.15547549724578857},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.14740395545959473}],"concepts":[{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.782291054725647},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.654290497303009},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6469602584838867},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.607293426990509},{"id":"https://openalex.org/C156872377","wikidata":"https://www.wikidata.org/wiki/Q6786281","display_name":"Matching pursuit","level":3,"score":0.5987148284912109},{"id":"https://openalex.org/C169334058","wikidata":"https://www.wikidata.org/wiki/Q353292","display_name":"Additive white Gaussian noise","level":3,"score":0.5803864002227783},{"id":"https://openalex.org/C75755367","wikidata":"https://www.wikidata.org/wiki/Q104531076","display_name":"Equalization (audio)","level":3,"score":0.549800455570221},{"id":"https://openalex.org/C19118579","wikidata":"https://www.wikidata.org/wiki/Q786423","display_name":"Frequency domain","level":2,"score":0.47622233629226685},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.4469079077243805},{"id":"https://openalex.org/C169111936","wikidata":"https://www.wikidata.org/wiki/Q424098","display_name":"Underwater acoustic communication","level":3,"score":0.44157588481903076},{"id":"https://openalex.org/C97812054","wikidata":"https://www.wikidata.org/wiki/Q2166055","display_name":"Intersymbol interference","level":3,"score":0.4403935968875885},{"id":"https://openalex.org/C4199805","wikidata":"https://www.wikidata.org/wiki/Q2725903","display_name":"Gaussian noise","level":2,"score":0.4296887516975403},{"id":"https://openalex.org/C9810830","wikidata":"https://www.wikidata.org/wiki/Q635384","display_name":"Maximum a posteriori estimation","level":3,"score":0.42857787013053894},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.25604987144470215},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2520856261253357},{"id":"https://openalex.org/C98083399","wikidata":"https://www.wikidata.org/wiki/Q3246517","display_name":"Underwater","level":2,"score":0.18260252475738525},{"id":"https://openalex.org/C124851039","wikidata":"https://www.wikidata.org/wiki/Q2665459","display_name":"Compressed sensing","level":2,"score":0.1588563323020935},{"id":"https://openalex.org/C49781872","wikidata":"https://www.wikidata.org/wiki/Q1045555","display_name":"Maximum likelihood","level":2,"score":0.15547549724578857},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.14740395545959473},{"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/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.0},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tsp.2015.2477807","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tsp.2015.2477807","pdf_url":null,"source":{"id":"https://openalex.org/S168680287","display_name":"IEEE Transactions on Signal Processing","issn_l":"1053-587X","issn":["1053-587X","1941-0476"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["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 Transactions on Signal Processing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":45,"referenced_works":["https://openalex.org/W1604394074","https://openalex.org/W1970632165","https://openalex.org/W1979473484","https://openalex.org/W1996444993","https://openalex.org/W1997834106","https://openalex.org/W1998790377","https://openalex.org/W2003333041","https://openalex.org/W2017274385","https://openalex.org/W2019308884","https://openalex.org/W2021242950","https://openalex.org/W2022775789","https://openalex.org/W2023878484","https://openalex.org/W2031569538","https://openalex.org/W2033644422","https://openalex.org/W2043705110","https://openalex.org/W2048133326","https://openalex.org/W2050317691","https://openalex.org/W2053318261","https://openalex.org/W2073576389","https://openalex.org/W2078220650","https://openalex.org/W2087789897","https://openalex.org/W2094769033","https://openalex.org/W2102412823","https://openalex.org/W2102634830","https://openalex.org/W2104063810","https://openalex.org/W2106920499","https://openalex.org/W2113053553","https://openalex.org/W2117565317","https://openalex.org/W2122412352","https://openalex.org/W2125797984","https://openalex.org/W2131665779","https://openalex.org/W2137012645","https://openalex.org/W2142652110","https://openalex.org/W2144802563","https://openalex.org/W2146199885","https://openalex.org/W2148036654","https://openalex.org/W2148736826","https://openalex.org/W2149084654","https://openalex.org/W2151811524","https://openalex.org/W2152121970","https://openalex.org/W2161623414","https://openalex.org/W2167578470","https://openalex.org/W4254346742","https://openalex.org/W6636174199","https://openalex.org/W6678521513"],"related_works":["https://openalex.org/W2775231398","https://openalex.org/W2104273479","https://openalex.org/W2583573874","https://openalex.org/W1562202724","https://openalex.org/W2122064288","https://openalex.org/W2110600218","https://openalex.org/W2120620752","https://openalex.org/W2071070509","https://openalex.org/W2161376665","https://openalex.org/W2149123792"],"abstract_inverted_index":{"This":[0],"paper":[1],"is":[2,98,119,162],"concerned":[3],"with":[4],"a":[5,102,123,131],"challenging":[6],"problem":[7],"of":[8,32,59,125,144],"channel":[9,34,43,61,74,146,161,176],"estimation":[10,62,110,177],"and":[11,37,115,128,148,166,175],"equalization":[12],"for":[13,40],"amplify-and-forward":[14],"cooperative":[15],"relay":[16],"based":[17,121,135],"orthogonal":[18],"frequency":[19],"division":[20],"multiplexing":[21],"(OFDM)":[22],"systems":[23],"in":[24,105,151],"sparse":[25,72],"underwater":[26],"acoustic":[27],"(UWA)":[28],"channels.":[29],"The":[30,64,93],"sparseness":[31],"the":[33,41,57,60,70,77,80,88,106,109,126,129,142,145,159,167],"impulse":[35],"response":[36],"prior":[38],"information":[39],"non-Gaussian":[42,96],"gains,":[44],"modeled":[45],"by":[46],"an":[47,152],"exact":[48],"continuous":[49],"Gaussian":[50,103],"mixture":[51],"(CGM),":[52],"are":[53],"exploited":[54],"to":[55,79,140],"improve":[56,141],"performance":[58],"algorithm.":[63],"resulting":[65],"novel":[66],"algorithm":[67,118,169],"initially":[68],"estimates":[69,143],"overall":[71],"complex-valued":[73],"taps":[75,147],"from":[76],"source":[78],"destination":[81],"as":[82,84,101],"well":[83,100],"their":[85,149],"locations":[86,150],"using":[87],"matching":[89],"pursuit":[90],"(MP)":[91],"approach.":[92],"effective":[94],"time-domain":[95],"noise":[97,104],"approximated":[99],"frequency-domain,":[107],"where":[108],"takes":[111],"place.":[112],"An":[113],"efficient":[114],"low":[116],"complexity":[117],"developed":[120],"on":[122],"combination":[124],"MP":[127],"maximum":[130],"posteriori":[132],"probability":[133],"(MAP)":[134],"space-alternating":[136],"generalized":[137],"expectation-maximization":[138],"technique,":[139],"iterative":[153],"manner.":[154],"Computer":[155],"simulations":[156],"show":[157],"that":[158],"UWA":[160],"estimated":[163],"very":[164],"effectively":[165],"proposed":[168],"exhibits":[170],"excellent":[171],"symbol":[172],"error":[173],"rate":[174],"performance.":[178]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":4},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":5},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":8},{"year":2017,"cited_by_count":12},{"year":2016,"cited_by_count":3}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
