{"id":"https://openalex.org/W2791157206","doi":"https://doi.org/10.1155/2018/9618147","title":"Channel Estimation for OFDM-Based Amplify-and-Forward Cooperative System Using Relay-Superimposed Pilots","display_name":"Channel Estimation for OFDM-Based Amplify-and-Forward Cooperative System Using Relay-Superimposed Pilots","publication_year":2018,"publication_date":"2018-01-01","ids":{"openalex":"https://openalex.org/W2791157206","doi":"https://doi.org/10.1155/2018/9618147","mag":"2791157206"},"language":"en","primary_location":{"id":"doi:10.1155/2018/9618147","is_oa":true,"landing_page_url":"http://doi.org/10.1155/2018/9618147","pdf_url":"http://downloads.hindawi.com/journals/ijdmb/2018/9618147.pdf","source":{"id":"https://openalex.org/S175833906","display_name":"International Journal of Digital Multimedia Broadcasting","issn_l":"1687-7578","issn":["1687-7578","1687-7586"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Digital Multimedia Broadcasting","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"http://downloads.hindawi.com/journals/ijdmb/2018/9618147.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5102962895","display_name":"Xianwen He","orcid":"https://orcid.org/0000-0002-3284-1539"},"institutions":[{"id":"https://openalex.org/I2800710378","display_name":"Naval University of Engineering","ror":"https://ror.org/056vyez31","country_code":"CN","type":"education","lineage":["https://openalex.org/I2800710378"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xianwen He","raw_affiliation_strings":["Department of Communication Engineering, Naval University of Engineering, Wuhan 430033, China"],"affiliations":[{"raw_affiliation_string":"Department of Communication Engineering, Naval University of Engineering, Wuhan 430033, China","institution_ids":["https://openalex.org/I2800710378"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040804104","display_name":"Gaoqi Dou","orcid":"https://orcid.org/0000-0001-6358-3942"},"institutions":[{"id":"https://openalex.org/I2800710378","display_name":"Naval University of Engineering","ror":"https://ror.org/056vyez31","country_code":"CN","type":"education","lineage":["https://openalex.org/I2800710378"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Gaoqi Dou","raw_affiliation_strings":["Department of Communication Engineering, Naval University of Engineering, Wuhan 430033, China"],"affiliations":[{"raw_affiliation_string":"Department of Communication Engineering, Naval University of Engineering, Wuhan 430033, China","institution_ids":["https://openalex.org/I2800710378"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100776555","display_name":"Jun Gao","orcid":"https://orcid.org/0000-0002-6750-8496"},"institutions":[{"id":"https://openalex.org/I2800710378","display_name":"Naval University of Engineering","ror":"https://ror.org/056vyez31","country_code":"CN","type":"education","lineage":["https://openalex.org/I2800710378"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jun Gao","raw_affiliation_strings":["Department of Communication Engineering, Naval University of Engineering, Wuhan 430033, China"],"affiliations":[{"raw_affiliation_string":"Department of Communication Engineering, Naval University of Engineering, Wuhan 430033, China","institution_ids":["https://openalex.org/I2800710378"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5040804104"],"corresponding_institution_ids":["https://openalex.org/I2800710378"],"apc_list":{"value":900,"currency":"USD","value_usd":900},"apc_paid":{"value":900,"currency":"USD","value_usd":900},"fwci":0.1954,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":{"value":0.5446861,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"2018","issue":null,"first_page":"1","last_page":"6"},"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":0.9968000054359436,"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":0.9952999949455261,"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/relay","display_name":"Relay","score":0.8386814594268799},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7678874731063843},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.755244255065918},{"id":"https://openalex.org/keywords/hop","display_name":"Hop (telecommunications)","score":0.6619576215744019},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6476669907569885},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.587371826171875},{"id":"https://openalex.org/keywords/multiplexing","display_name":"Multiplexing","score":0.4477446675300598},{"id":"https://openalex.org/keywords/pilot-signal","display_name":"Pilot signal","score":0.4204743504524231},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3645654618740082},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3239767849445343}],"concepts":[{"id":"https://openalex.org/C2778156585","wikidata":"https://www.wikidata.org/wiki/Q174053","display_name":"Relay","level":3,"score":0.8386814594268799},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7678874731063843},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.755244255065918},{"id":"https://openalex.org/C25906391","wikidata":"https://www.wikidata.org/wiki/Q1432381","display_name":"Hop (telecommunications)","level":2,"score":0.6619576215744019},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6476669907569885},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.587371826171875},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.4477446675300598},{"id":"https://openalex.org/C197264572","wikidata":"https://www.wikidata.org/wiki/Q2095206","display_name":"Pilot signal","level":3,"score":0.4204743504524231},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3645654618740082},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3239767849445343},{"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/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1155/2018/9618147","is_oa":true,"landing_page_url":"http://doi.org/10.1155/2018/9618147","pdf_url":"http://downloads.hindawi.com/journals/ijdmb/2018/9618147.pdf","source":{"id":"https://openalex.org/S175833906","display_name":"International Journal of Digital Multimedia Broadcasting","issn_l":"1687-7578","issn":["1687-7578","1687-7586"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Digital Multimedia Broadcasting","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:3e013bee623d41ceb95f4f17641a1cd6","is_oa":true,"landing_page_url":"https://doaj.org/article/3e013bee623d41ceb95f4f17641a1cd6","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"International Journal of Digital Multimedia Broadcasting, Vol 2018 (2018)","raw_type":"article"},{"id":"pmh:oai:hindawi.com:10.1155/2018/9618147","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2018/9618147","pdf_url":null,"source":{"id":"https://openalex.org/S4306400340","display_name":"Hindawi Journal of Chemistry (Hindawi)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210126990","host_organization_name":"Hindawi (United Kingdom)","host_organization_lineage":["https://openalex.org/I4210126990"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Research Article"}],"best_oa_location":{"id":"doi:10.1155/2018/9618147","is_oa":true,"landing_page_url":"http://doi.org/10.1155/2018/9618147","pdf_url":"http://downloads.hindawi.com/journals/ijdmb/2018/9618147.pdf","source":{"id":"https://openalex.org/S175833906","display_name":"International Journal of Digital Multimedia Broadcasting","issn_l":"1687-7578","issn":["1687-7578","1687-7586"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Digital Multimedia Broadcasting","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.46000000834465027,"id":"https://metadata.un.org/sdg/17","display_name":"Partnerships for the goals"}],"awards":[{"id":"https://openalex.org/G2082826544","display_name":null,"funder_award_id":"Postdoctoral","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G2827999437","display_name":null,"funder_award_id":"61302099","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G2983045551","display_name":null,"funder_award_id":"61302099","funder_id":"https://openalex.org/F4320321543","funder_display_name":"China Postdoctoral Science Foundation"},{"id":"https://openalex.org/G3317480652","display_name":null,"funder_award_id":"Science","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G37568934","display_name":null,"funder_award_id":"Grant","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G4463254263","display_name":null,"funder_award_id":"2015T81107","funder_id":"https://openalex.org/F4320321543","funder_display_name":"China Postdoctoral Science Foundation"},{"id":"https://openalex.org/G4915494859","display_name":null,"funder_award_id":"2015T81107","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5994120800","display_name":null,"funder_award_id":"Natural","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320321543","display_name":"China Postdoctoral Science Foundation","ror":"https://ror.org/0426zh255"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2791157206.pdf","grobid_xml":"https://content.openalex.org/works/W2791157206.grobid-xml"},"referenced_works_count":11,"referenced_works":["https://openalex.org/W1899517412","https://openalex.org/W1996646209","https://openalex.org/W2072018618","https://openalex.org/W2105439331","https://openalex.org/W2126461634","https://openalex.org/W2145437642","https://openalex.org/W2156960709","https://openalex.org/W2540396841","https://openalex.org/W2582550924","https://openalex.org/W2588344934","https://openalex.org/W2732166084"],"related_works":["https://openalex.org/W2519669146","https://openalex.org/W4243590696","https://openalex.org/W2333126105","https://openalex.org/W2045823714","https://openalex.org/W3011870742","https://openalex.org/W2101471922","https://openalex.org/W3047016552","https://openalex.org/W2070159024","https://openalex.org/W2182727356","https://openalex.org/W2066490651"],"abstract_inverted_index":{"For":[0],"the":[1,14,24,34,37,48,60,68,74,79,95,100,112,115],"OFDM-based":[2],"Amplify-and-Forward":[3],"cooperative":[4,38,64,71,86],"system,":[5],"a":[6],"novel":[7],"relay-superimposed":[8],"pilot":[9,16,29,55],"strategy":[10],"is":[11,31,91],"proposed,":[12],"where":[13],"source":[15],"symbols":[17],"are":[18,108],"frequency":[19],"division":[20],"multiplexed":[21],"to":[22,110],"estimate":[23],"cascaded":[25],"channel":[26,43,104],"while":[27],"relay":[28],"sequence":[30],"superimposed":[32],"onto":[33],"top":[35],"of":[36,50,62,70,76,102,114],"data":[39,51,72,87],"stream":[40],"for":[41,53,99],"second-hop":[42,77,103],"estimation.":[44,105],"This":[45],"method":[46],"avoids":[47],"loss":[49],"rate":[52],"additional":[54],"subcarriers":[56],"but":[57],"results":[58,107],"in":[59],"interference":[61,69],"unknown":[63],"data.":[65],"To":[66],"remove":[67],"during":[73],"estimation":[75],"channel,":[78],"Cooperative":[80],"Interference":[81],"Cancelation":[82],"scheme":[83],"assisted":[84],"by":[85],"from":[88],"direct":[89],"link":[90],"proposed.":[92],"We":[93],"derive":[94],"approximated":[96],"lower":[97],"bound":[98],"MSE":[101],"Simulation":[106],"presented":[109],"validate":[111],"performance":[113],"proposed":[116],"schemes.":[117]},"counts_by_year":[{"year":2021,"cited_by_count":1}],"updated_date":"2026-04-16T08:26:57.006410","created_date":"2025-10-10T00:00:00"}
