{"id":"https://openalex.org/W2146199885","doi":"https://doi.org/10.1109/tsp.2011.2169059","title":"Superimposed Training-Based Channel Estimation and Data Detection for OFDM Amplify-and-Forward Cooperative Systems Under High Mobility","display_name":"Superimposed Training-Based Channel Estimation and Data Detection for OFDM Amplify-and-Forward Cooperative Systems Under High Mobility","publication_year":2011,"publication_date":"2011-09-28","ids":{"openalex":"https://openalex.org/W2146199885","doi":"https://doi.org/10.1109/tsp.2011.2169059","mag":"2146199885"},"language":"en","primary_location":{"id":"doi:10.1109/tsp.2011.2169059","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tsp.2011.2169059","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/A5076315356","display_name":"Lanlan He","orcid":null},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Lanlan He","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, University of Hong Kong, Hong Kong, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, University of Hong Kong, Hong Kong, China","institution_ids":["https://openalex.org/I889458895"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085964667","display_name":"Yik\u2010Chung Wu","orcid":"https://orcid.org/0000-0002-2738-0387"},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Yik-Chung Wu","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, University of Hong Kong, Hong Kong, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, University of Hong Kong, Hong Kong, China","institution_ids":["https://openalex.org/I889458895"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053586699","display_name":"Shaodan Ma","orcid":"https://orcid.org/0000-0001-5521-3650"},"institutions":[{"id":"https://openalex.org/I204512498","display_name":"University of Macau","ror":"https://ror.org/01r4q9n85","country_code":"MO","type":"education","lineage":["https://openalex.org/I204512498"]},{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK","MO"],"is_corresponding":false,"raw_author_name":"Shaodan Ma","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Macau, Macao, China","Department of Electrical and Electronic Engineering, University of Hong Kong, Hong Kong, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Macau, Macao, China","institution_ids":["https://openalex.org/I204512498"]},{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, University of Hong Kong, Hong Kong, China","institution_ids":["https://openalex.org/I889458895"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015441988","display_name":"Tung-Sang Ng","orcid":null},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Tung-Sang Ng","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, University of Hong Kong, Hong Kong, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, University of Hong Kong, Hong Kong, China","institution_ids":["https://openalex.org/I889458895"]}]},{"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"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Princeton University, Princeton, NJ, USA","institution_ids":["https://openalex.org/I20089843"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":5.8512,"has_fulltext":false,"cited_by_count":42,"citation_normalized_percentile":{"value":0.96332615,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"60","issue":"1","first_page":"274","last_page":"284"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9998999834060669,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9994000196456909,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9994000196456909,"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/tikhonov-regularization","display_name":"Tikhonov regularization","score":0.7172699570655823},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.7092054486274719},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.655591607093811},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6271402835845947},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5984657406806946},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5984036326408386},{"id":"https://openalex.org/keywords/minimum-mean-square-error","display_name":"Minimum mean square error","score":0.5149367451667786},{"id":"https://openalex.org/keywords/multiuser-detection","display_name":"Multiuser detection","score":0.41565099358558655},{"id":"https://openalex.org/keywords/detector","display_name":"Detector","score":0.40726298093795776},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.32704293727874756},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.16401854157447815},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.16396009922027588},{"id":"https://openalex.org/keywords/inverse-problem","display_name":"Inverse problem","score":0.09695124626159668}],"concepts":[{"id":"https://openalex.org/C152442038","wikidata":"https://www.wikidata.org/wiki/Q2778212","display_name":"Tikhonov regularization","level":3,"score":0.7172699570655823},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.7092054486274719},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.655591607093811},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6271402835845947},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5984657406806946},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5984036326408386},{"id":"https://openalex.org/C90652560","wikidata":"https://www.wikidata.org/wiki/Q11091747","display_name":"Minimum mean square error","level":3,"score":0.5149367451667786},{"id":"https://openalex.org/C2777104032","wikidata":"https://www.wikidata.org/wiki/Q16324514","display_name":"Multiuser detection","level":3,"score":0.41565099358558655},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.40726298093795776},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.32704293727874756},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.16401854157447815},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.16396009922027588},{"id":"https://openalex.org/C135252773","wikidata":"https://www.wikidata.org/wiki/Q1567213","display_name":"Inverse problem","level":2,"score":0.09695124626159668},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tsp.2011.2169059","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tsp.2011.2169059","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"},{"id":"pmh:oai:hub.hku.hk:10722/155718","is_oa":false,"landing_page_url":"http://hdl.handle.net/10722/155718","pdf_url":null,"source":{"id":"https://openalex.org/S4377196271","display_name":"The HKU Scholars Hub (University of Hong Kong)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I889458895","host_organization_name":"University of Hong Kong","host_organization_lineage":["https://openalex.org/I889458895"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W1594234351","https://openalex.org/W1869295411","https://openalex.org/W2053999146","https://openalex.org/W2057913932","https://openalex.org/W2076187943","https://openalex.org/W2102800524","https://openalex.org/W2105439331","https://openalex.org/W2106558962","https://openalex.org/W2112514684","https://openalex.org/W2119801317","https://openalex.org/W2130029379","https://openalex.org/W2138255796","https://openalex.org/W2138824526","https://openalex.org/W2138924899","https://openalex.org/W2139548827","https://openalex.org/W2140064412","https://openalex.org/W2151811524","https://openalex.org/W2153184506","https://openalex.org/W2156960709","https://openalex.org/W4301259139","https://openalex.org/W6679395441"],"related_works":["https://openalex.org/W3131586246","https://openalex.org/W2585209928","https://openalex.org/W3125536267","https://openalex.org/W2274645452","https://openalex.org/W2010226434","https://openalex.org/W2107173662","https://openalex.org/W2354747259","https://openalex.org/W2270625065","https://openalex.org/W1021309686","https://openalex.org/W1968297990"],"abstract_inverted_index":{"In":[0,88],"this":[1,116],"paper,":[2],"joint":[3],"channel":[4,57,91,159],"estimation":[5],"and":[6,71,103],"data":[7,74,95,106,137,149],"detection":[8,75,107,138],"in":[9,30],"orthogonal":[10],"frequency":[11],"division":[12],"multiplexing":[13],"(OFDM)":[14],"amplify-and-forward":[15],"(AF)":[16],"cooperative":[17,28],"systems":[18,29],"under":[19],"high":[20],"mobility":[21],"is":[22,46,59,77,96,127,151],"investigated.":[23],"Unlike":[24],"previous":[25],"works":[26],"on":[27,62,122],"which":[31],"a":[32,55,72],"number":[33],"of":[34,100,140],"subcarriers":[35],"are":[36],"solely":[37],"occupied":[38],"by":[39,146],"pilots,":[40],"partial":[41],"data-dependent":[42],"superimposed":[43],"training":[44],"(PDDST)":[45],"considered":[47],"here,":[48],"thus":[49],"preserving":[50],"the":[51,63,80,89,93,101,104,111,123,136,141,147,154],"spectral":[52],"efficiency.":[53],"First,":[54],"closed-form":[56],"estimator":[58],"developed":[60],"based":[61,121],"least":[64],"squares":[65],"(LS)":[66],"method":[67,120],"with":[68,157],"Tikhonov":[69],"regularization":[70],"corresponding":[73],"algorithm":[76,144],"proposed":[78,142],"using":[79],"linear":[81],"minimum":[82],"mean":[83],"square":[84],"error":[85],"(LMMSE)":[86],"criterion.":[87],"derived":[90,128],"estimator,":[92],"unknown":[94],"treated":[97],"as":[98],"part":[99],"noise":[102],"resulting":[105],"may":[108],"not":[109],"meet":[110],"required":[112],"performance.":[113,131],"To":[114],"address":[115],"issue,":[117],"an":[118],"iterative":[119,143],"variational":[124],"inference":[125],"approach":[126],"to":[129,153],"improve":[130],"Simulation":[132],"results":[133],"show":[134],"that":[135],"performance":[139],"initialized":[145],"LMMSE":[148],"detector":[150],"close":[152],"ideal":[155],"case":[156],"perfect":[158],"state":[160],"information.":[161]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":4},{"year":2014,"cited_by_count":7},{"year":2013,"cited_by_count":4},{"year":2012,"cited_by_count":5}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2016-06-24T00:00:00"}