{"id":"https://openalex.org/W2082299967","doi":"https://doi.org/10.1109/tvt.2013.2271284","title":"Channel Estimations Using Extended Orthogonal Codes for AF Multiple-Relay Networks Over Frequency-Selective Fading Channels","display_name":"Channel Estimations Using Extended Orthogonal Codes for AF Multiple-Relay Networks Over Frequency-Selective Fading Channels","publication_year":2013,"publication_date":"2013-06-26","ids":{"openalex":"https://openalex.org/W2082299967","doi":"https://doi.org/10.1109/tvt.2013.2271284","mag":"2082299967"},"language":"en","primary_location":{"id":"doi:10.1109/tvt.2013.2271284","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2013.2271284","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"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 Vehicular Technology","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/A5100874872","display_name":"Seunghwan Choi","orcid":null},"institutions":[{"id":"https://openalex.org/I193775966","display_name":"Yonsei University","ror":"https://ror.org/01wjejq96","country_code":"KR","type":"education","lineage":["https://openalex.org/I193775966"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Seung-Hwan Choi","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, Yonsei University , Seoul, Korea","[Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea]"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, Yonsei University , Seoul, Korea","institution_ids":["https://openalex.org/I193775966"]},{"raw_affiliation_string":"[Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea]","institution_ids":["https://openalex.org/I193775966"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109244682","display_name":"Jong\u2010Seob Baek","orcid":null},"institutions":[{"id":"https://openalex.org/I2818286","display_name":"LG (United States)","ror":"https://ror.org/02b948n83","country_code":"US","type":"company","lineage":["https://openalex.org/I2818286","https://openalex.org/I4210131320"]},{"id":"https://openalex.org/I4210120602","display_name":"Advanced Institute of Convergence Technology","ror":"https://ror.org/01w62yz22","country_code":"KR","type":"facility","lineage":["https://openalex.org/I139264467","https://openalex.org/I4210120602"]},{"id":"https://openalex.org/I4210131320","display_name":"LG (South Korea)","ror":"https://ror.org/03ddh2c27","country_code":"KR","type":"company","lineage":["https://openalex.org/I4210131320"]}],"countries":["KR","US"],"is_corresponding":false,"raw_author_name":"Jong-Seob Baek","raw_affiliation_strings":["Team of Advanced Technology and System, Convergence Research Center, CTO, LG Electronics, Seoul, Korea","Team of Adv. Technol. & Syst., LG Electron., Seoul, South Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Team of Advanced Technology and System, Convergence Research Center, CTO, LG Electronics, Seoul, Korea","institution_ids":["https://openalex.org/I2818286","https://openalex.org/I4210120602"]},{"raw_affiliation_string":"Team of Adv. Technol. & Syst., LG Electron., Seoul, South Korea","institution_ids":["https://openalex.org/I4210131320"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074654396","display_name":"Jae\u2010Shin Han","orcid":null},"institutions":[{"id":"https://openalex.org/I193775966","display_name":"Yonsei University","ror":"https://ror.org/01wjejq96","country_code":"KR","type":"education","lineage":["https://openalex.org/I193775966"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jae-Shin Han","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea","[Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea]"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea","institution_ids":["https://openalex.org/I193775966"]},{"raw_affiliation_string":"[Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea]","institution_ids":["https://openalex.org/I193775966"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101582336","display_name":"Jong\u2010Soo Seo","orcid":"https://orcid.org/0000-0002-2133-4590"},"institutions":[{"id":"https://openalex.org/I193775966","display_name":"Yonsei University","ror":"https://ror.org/01wjejq96","country_code":"KR","type":"education","lineage":["https://openalex.org/I193775966"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jong-Soo Seo","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea","[Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea]"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea","institution_ids":["https://openalex.org/I193775966"]},{"raw_affiliation_string":"[Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea]","institution_ids":["https://openalex.org/I193775966"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.8301,"has_fulltext":false,"cited_by_count":12,"citation_normalized_percentile":{"value":0.87325101,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"63","issue":"1","first_page":"417","last_page":"423"},"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/T12791","display_name":"Full-Duplex Wireless Communications","score":0.9993000030517578,"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":0.9988999962806702,"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/fading","display_name":"Fading","score":0.7818599939346313},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.7503907680511475},{"id":"https://openalex.org/keywords/relay","display_name":"Relay","score":0.6404390931129456},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.564142107963562},{"id":"https://openalex.org/keywords/relay-channel","display_name":"Relay channel","score":0.5352663993835449},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.46999868750572205},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.45125827193260193},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.4351930022239685},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.40612688660621643},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.37440621852874756},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3621693551540375},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.3091968297958374},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.28410154581069946},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.27280673384666443},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.20561611652374268},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.06620138883590698}],"concepts":[{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.7818599939346313},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.7503907680511475},{"id":"https://openalex.org/C2778156585","wikidata":"https://www.wikidata.org/wiki/Q174053","display_name":"Relay","level":3,"score":0.6404390931129456},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.564142107963562},{"id":"https://openalex.org/C46257984","wikidata":"https://www.wikidata.org/wiki/Q7310895","display_name":"Relay channel","level":4,"score":0.5352663993835449},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.46999868750572205},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.45125827193260193},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.4351930022239685},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.40612688660621643},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.37440621852874756},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3621693551540375},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.3091968297958374},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.28410154581069946},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.27280673384666443},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.20561611652374268},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.06620138883590698},{"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/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","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}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tvt.2013.2271284","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2013.2271284","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"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 Vehicular Technology","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W2072464818","https://openalex.org/W2097276928","https://openalex.org/W2111264747","https://openalex.org/W2124642768","https://openalex.org/W2124652869","https://openalex.org/W2132953105","https://openalex.org/W2138255796","https://openalex.org/W2138706041","https://openalex.org/W2148963518","https://openalex.org/W2155502594","https://openalex.org/W2156960709","https://openalex.org/W3188818167"],"related_works":["https://openalex.org/W2139218629","https://openalex.org/W2543037201","https://openalex.org/W2065249398","https://openalex.org/W2039400905","https://openalex.org/W2553542684","https://openalex.org/W2792225804","https://openalex.org/W2379485241","https://openalex.org/W2118260548","https://openalex.org/W2161069731","https://openalex.org/W2081316113"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3,82,111],"present":[4],"the":[5,46,56,65,70,116,121],"efficient":[6],"channel":[7,41,71,118],"estimation":[8,42],"scheme":[9],"for":[10],"amplify-and-forward":[11],"(AF)":[12],"multiple-relay":[13],"networks":[14],"in":[15,45],"frequency-selective":[16],"fading":[17],"channels.":[18],"It":[19],"is":[20],"first":[21],"addressed":[22],"that":[23],"a":[24,29,33,39,85,94,97],"known":[25,52,87],"sequence":[26,88],"transmitted":[27],"from":[28,55],"source":[30,95],"must":[31,59],"have":[32,60],"perfect":[34],"correlation":[35],"property":[36],"to":[37,61,67],"achieve":[38],"minimum":[40],"error,":[43],"particularly":[44],"least":[47],"squares":[48],"(LS)":[49],"sense.":[50],"The":[51],"sequences":[53,92],"retransmitted":[54],"multiple":[57,76],"relay":[58],"be":[62],"decoupled":[63],"at":[64,93,108],"destination":[66],"completely":[68],"estimate":[69],"impulse":[72],"responses":[73],"(CIRs)":[74],"between":[75],"links.":[77],"To":[78],"satisfy":[79],"such":[80],"requirements,":[81],"then":[83],"propose":[84],"repeated":[86],"consisting":[89],"of":[90,115,123],"Chu":[91],"and":[96],"signed":[98],"identity":[99],"precoding":[100],"using":[101],"extended":[102],"orthogonal":[103],"codes,":[104,107],"i.e.,":[105],"Hadamard":[106],"relays.":[109],"Moreover,":[110],"investigate":[112],"various":[113],"properties":[114],"proposed":[117],"estimations":[119],"through":[120],"analysis":[122],"mean":[124],"square":[125],"error":[126],"(MSE).":[127]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":2},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":3}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
