{"id":"https://openalex.org/W2068384467","doi":"https://doi.org/10.1109/lsp.2012.2210869","title":"Channel Estimation for AF-Type Cooperative OFDM Systems With Low Pilot Overhead","display_name":"Channel Estimation for AF-Type Cooperative OFDM Systems With Low Pilot Overhead","publication_year":2012,"publication_date":"2012-07-31","ids":{"openalex":"https://openalex.org/W2068384467","doi":"https://doi.org/10.1109/lsp.2012.2210869","mag":"2068384467"},"language":"en","primary_location":{"id":"doi:10.1109/lsp.2012.2210869","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lsp.2012.2210869","pdf_url":null,"source":{"id":"https://openalex.org/S120629676","display_name":"IEEE Signal Processing Letters","issn_l":"1070-9908","issn":["1070-9908","1558-2361"],"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 Signal Processing Letters","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/A5102717342","display_name":"Weikun Hou","orcid":"https://orcid.org/0000-0003-3365-9760"},"institutions":[{"id":"https://openalex.org/I125749732","display_name":"Western University","ror":"https://ror.org/02grkyz14","country_code":"CA","type":"education","lineage":["https://openalex.org/I125749732"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Weikun Hou","raw_affiliation_strings":["University of Western Ontario, London, ONT, Canada","University of Western Ontario, London, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Western Ontario, London, ONT, Canada","institution_ids":["https://openalex.org/I125749732"]},{"raw_affiliation_string":"University of Western Ontario, London, Canada","institution_ids":["https://openalex.org/I125749732"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5088788160","display_name":"Ming Jiang","orcid":"https://orcid.org/0000-0001-9064-7307"},"institutions":[{"id":"https://openalex.org/I4210133610","display_name":"China Post (China)","ror":"https://ror.org/04jvr6m30","country_code":"CN","type":"company","lineage":["https://openalex.org/I4210133610"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ming Jiang","raw_affiliation_strings":["New Postcom Equipment Co., Ltd., Guangzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"New Postcom Equipment Co., Ltd., Guangzhou, China","institution_ids":["https://openalex.org/I4210133610"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.399,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.70663682,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"19","issue":"10","first_page":"651","last_page":"654"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","score":1.0,"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":1.0,"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/T11458","display_name":"Advanced Wireless Communication Technologies","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"}},{"id":"https://openalex.org/T12791","display_name":"Full-Duplex Wireless Communications","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/cyclic-prefix","display_name":"Cyclic prefix","score":0.8303827047348022},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.7775788903236389},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.6797254085540771},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.6787766218185425},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6405457854270935},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6252356767654419},{"id":"https://openalex.org/keywords/relay","display_name":"Relay","score":0.5224065780639648},{"id":"https://openalex.org/keywords/multipath-propagation","display_name":"Multipath propagation","score":0.5085428953170776},{"id":"https://openalex.org/keywords/node","display_name":"Node (physics)","score":0.4624486267566681},{"id":"https://openalex.org/keywords/pilot-signal","display_name":"Pilot signal","score":0.4526621103286743},{"id":"https://openalex.org/keywords/multiplexing","display_name":"Multiplexing","score":0.4393705129623413},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.4224008619785309},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4218074083328247},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3887542486190796},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.36104702949523926},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2517040967941284},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1744544804096222}],"concepts":[{"id":"https://openalex.org/C2778775284","wikidata":"https://www.wikidata.org/wiki/Q5198224","display_name":"Cyclic prefix","level":4,"score":0.8303827047348022},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.7775788903236389},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.6797254085540771},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.6787766218185425},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6405457854270935},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6252356767654419},{"id":"https://openalex.org/C2778156585","wikidata":"https://www.wikidata.org/wiki/Q174053","display_name":"Relay","level":3,"score":0.5224065780639648},{"id":"https://openalex.org/C161218011","wikidata":"https://www.wikidata.org/wiki/Q11827794","display_name":"Multipath propagation","level":3,"score":0.5085428953170776},{"id":"https://openalex.org/C62611344","wikidata":"https://www.wikidata.org/wiki/Q1062658","display_name":"Node (physics)","level":2,"score":0.4624486267566681},{"id":"https://openalex.org/C197264572","wikidata":"https://www.wikidata.org/wiki/Q2095206","display_name":"Pilot signal","level":3,"score":0.4526621103286743},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.4393705129623413},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.4224008619785309},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4218074083328247},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3887542486190796},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.36104702949523926},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2517040967941284},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1744544804096222},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C66938386","wikidata":"https://www.wikidata.org/wiki/Q633538","display_name":"Structural engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lsp.2012.2210869","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lsp.2012.2210869","pdf_url":null,"source":{"id":"https://openalex.org/S120629676","display_name":"IEEE Signal Processing Letters","issn_l":"1070-9908","issn":["1070-9908","1558-2361"],"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 Signal Processing Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.41999998688697815,"id":"https://metadata.un.org/sdg/17","display_name":"Partnerships for the goals"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W2105439331","https://openalex.org/W2111264747","https://openalex.org/W2113415377","https://openalex.org/W2121051729","https://openalex.org/W2126461634","https://openalex.org/W2127291907","https://openalex.org/W2146199885","https://openalex.org/W2148963518","https://openalex.org/W2156960709"],"related_works":["https://openalex.org/W2120808430","https://openalex.org/W2294705471","https://openalex.org/W2795913985","https://openalex.org/W1788635055","https://openalex.org/W2097466660","https://openalex.org/W2169591538","https://openalex.org/W2774269211","https://openalex.org/W2000069970","https://openalex.org/W1995901250","https://openalex.org/W3047016552"],"abstract_inverted_index":{"In":[0,74],"amplify-and-forward":[1],"(AF)":[2],"type":[3],"relaying":[4],"assisted":[5],"orthogonal":[6],"frequency":[7,23],"division":[8],"multiplexing":[9],"(OFDM)":[10],"systems,":[11],"channel":[12],"estimation":[13],"(CE)":[14],"is":[15,81],"a":[16,77],"challenging":[17],"task":[18],"due":[19],"to":[20,106],"the":[21,27,59,67,84,93,96,99,110,116],"increased":[22],"selectivity":[24],"caused":[25],"by":[26,71,91],"cascaded":[28,35,111],"source-to-relay-to-destination$(S\\rightarrow":[29],"R\\rightarrow":[30],"D)$multipath":[31],"channel.":[32,112],"Typically,":[33],"such":[34],"channels":[36],"result":[37],"in":[38,123],"severe":[39],"time":[40],"dispersion.":[41],"Consequently,":[42],"it":[43],"requires":[44],"additional":[45],"pilot":[46,88],"overhead":[47],"for":[48,57,109],"CE":[49,79],"as":[50,52],"well":[51],"longer":[53],"cyclic":[54],"prefix":[55],"(CP)":[56],"eliminating":[58],"inter-symbol":[60],"interference":[61],"(ISI),":[62],"which":[63],"will":[64],"inevitably":[65],"reduce":[66],"achievable":[68],"diversity":[69],"provided":[70],"cooperative":[72],"transmissions.":[73],"this":[75],"letter,":[76],"three-step":[78],"scheme":[80,121],"proposed":[82,120],"without":[83],"need":[85,105],"of":[86,118],"increasing":[87],"overhead.":[89],"Furthermore,":[90],"reconstructing":[92],"CP":[94,100],"at":[95],"relay":[97],"node,":[98],"length":[101],"does":[102],"not":[103],"necessarily":[104],"be":[107],"extended":[108],"Simulation":[113],"results":[114],"demonstrate":[115],"effectiveness":[117],"our":[119],"even":[122],"severely":[124],"time-dispersive":[125],"multipath":[126],"fading":[127],"channels.":[128]},"counts_by_year":[{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2026-07-29T09:40:50.615796","created_date":"2025-10-10T00:00:00"}
