乐胖代购免代理版

{"id":"https://openalex.org/W2065023248","doi":"https://doi.org/10.1049/iet-com:20045301","title":"Optimal training design for linearly time-varying MIMO\u2215OFDM channels modelled by a complex exponential basis expansion","display_name":"Optimal training design for linearly time-varying MIMO\u2215OFDM channels modelled by a complex exponential basis expansion","publication_year":2007,"publication_date":"2007-10-04","ids":{"openalex":"https://openalex.org/W2065023248","doi":"https://doi.org/10.1049/iet-com:20045301","mag":"2065023248"},"language":"en","primary_location":{"is_oa":false,"landing_page_url":"https://doi.org/10.1049/iet-com:20045301","pdf_url":null,"source":{"id":"https://openalex.org/S85427048","display_name":"IET Communications","issn_l":"1751-8628","issn":["1751-8628","1751-8636"],"is_oa":true,"is_in_doaj":true,"is_indexed_in_scopus":true,"is_core":true,"host_organization":"https://openalex.org/P4310311714","host_organization_name":"Institution of Engineering and Technology","host_organization_lineage":["https://openalex.org/P4310311714"],"host_organization_lineage_names":["Institution of Engineering and Technology"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false},"type":"article","type_crossref":"journal-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/A5035078428","display_name":"Xuchu Dai","orcid":"https://orcid.org/0000-0002-5190-7660"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"funder","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"X. Dai","raw_affiliation_strings":["Department of Electronic and Communication Engineering, School of Information Science and Technology, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China"],"affiliations":[{"raw_affiliation_string":"Department of Electronic and Communication Engineering, School of Information Science and Technology, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China","institution_ids":["https://openalex.org/I157773358"]}]}],"institution_assertions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5035078428"],"corresponding_institution_ids":["https://openalex.org/I157773358"],"apc_list":{"value":2000,"currency":"EUR","value_usd":2200},"apc_paid":null,"fwci":3.755,"has_fulltext":true,"fulltext_origin":"ngrams","cited_by_count":34,"citation_normalized_percentile":{"value":0.861418,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":92},"biblio":{"volume":"1","issue":"5","first_page":"945","last_page":"953"},"is_retracted":false,"is_paratext":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":1.0,"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/T10575","display_name":"Wireless Communication Networks Research","score":0.9997,"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/T11873","display_name":"PAPR reduction in OFDM","score":0.9979,"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/pilot-signal","display_name":"Pilot signal","score":0.48379868}],"concepts":[{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.7361441},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.6829131},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.61940604},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5948404},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.5658611},{"id":"https://openalex.org/C19118579","wikidata":"https://www.wikidata.org/wiki/Q786423","display_name":"Frequency domain","level":2,"score":0.55795467},{"id":"https://openalex.org/C103824480","wikidata":"https://www.wikidata.org/wiki/Q185889","display_name":"Time domain","level":2,"score":0.5340219},{"id":"https://openalex.org/C197264572","wikidata":"https://www.wikidata.org/wiki/Q2095206","display_name":"Pilot signal","level":3,"score":0.48379868},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.48335785},{"id":"https://openalex.org/C130946814","wikidata":"https://www.wikidata.org/wiki/Q5988271","display_name":"MIMO-OFDM","level":4,"score":0.47695744},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.4605059},{"id":"https://openalex.org/C151376022","wikidata":"https://www.wikidata.org/wiki/Q168698","display_name":"Exponential function","level":2,"score":0.4410727},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.40957105},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.39361626},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.23493147},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.16590667},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.06723079},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.0},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"is_oa":false,"landing_page_url":"https://doi.org/10.1049/iet-com:20045301","pdf_url":null,"source":{"id":"https://openalex.org/S85427048","display_name":"IET Communications","issn_l":"1751-8628","issn":["1751-8628","1751-8636"],"is_oa":true,"is_in_doaj":true,"is_indexed_in_scopus":true,"is_core":true,"host_organization":"https://openalex.org/P4310311714","host_organization_name":"Institution of Engineering and Technology","host_organization_lineage":["https://openalex.org/P4310311714"],"host_organization_lineage_names":["Institution of Engineering and Technology"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.55}],"grants":[],"datasets":[],"versions":[],"referenced_works_count":24,"referenced_works":["https://openalex.org/W1596939795","https://openalex.org/W2017559878","https://openalex.org/W2023155939","https://openalex.org/W2047250998","https://openalex.org/W2070669938","https://openalex.org/W2072575400","https://openalex.org/W2095968984","https://openalex.org/W2112600986","https://openalex.org/W2121051729","https://openalex.org/W2131728382","https://openalex.org/W2131887451","https://openalex.org/W2140446444","https://openalex.org/W2142947498","https://openalex.org/W2143729631","https://openalex.org/W2145309981","https://openalex.org/W2145567301","https://openalex.org/W2146912716","https://openalex.org/W2150127333","https://openalex.org/W2151948222","https://openalex.org/W2156788281","https://openalex.org/W2166873702","https://openalex.org/W2169965856","https://openalex.org/W3112152508","https://openalex.org/W4249046241"],"related_works":["https://openalex.org/W4243590696","https://openalex.org/W3011870742","https://openalex.org/W2539022530","https://openalex.org/W2533938898","https://openalex.org/W2366188968","https://openalex.org/W2188042986","https://openalex.org/W2187587942","https://openalex.org/W2159772567","https://openalex.org/W2101471922","https://openalex.org/W2045823714"],"abstract_inverted_index":{"Time-":[0],"and":[1,25,62,95],"frequency-selective":[2],"fading":[3],"of":[4,10,32,38,45,148],"propagating":[5],"channels":[6],"degrades":[7],"the":[8,30,42,46,57,63,70,80,106,128,144],"performance":[9,136],"multiple-input":[11],"multiple-output/orthogonal":[12],"frequency-division":[13],"multiplexing":[14],"(MIMO/OFDM)":[15],"systems":[16],"extensively":[17],"by":[18,51,113],"introducing":[19],"double":[20],"convolutions":[21],"in":[22,102,138],"both":[23],"time-domain":[24],"frequency-domain.":[26,103],"The":[27],"author":[28],"addresses":[29],"problem":[31],"linearly":[33],"time-varying":[34,43,146],"(LTV)":[35],"channel":[36,48,59,108,130,147],"estimation":[37,109],"MIMO/OFDM":[39],"systems.":[40],"First,":[41],"coefficients":[44],"LTV":[47,58,107],"are":[49,67],"modelled":[50],"complex":[52],"exponential":[53],"basis":[54],"expansions.":[55],"Secondly,":[56],"is":[60,77,84,110,125],"estimated":[61],"optimal":[64,81],"pilot":[65,82,88,93,100],"symbols":[66],"derived":[68],"following":[69],"minimum":[71],"mean":[72],"square":[73],"error":[74],"criterion.":[75],"It":[76],"shown":[78,126],"that":[79,127],"strategy":[83],"to":[85,96],"group":[86],"consecutive":[87],"tones":[89],"together":[90],"as":[91],"a":[92,115,134,149],"cluster":[94],"distribute":[97],"uniformly":[98],"all":[99],"clusters":[101],"In":[104],"addition,":[105],"further":[111],"improved":[112],"imposing":[114],"window":[116],"function":[117],"on":[118],"received":[119],"signals.":[120],"Finally,":[121],"through":[122],"simulations,":[123],"it":[124],"new":[129],"estimator":[131],"can":[132],"provide":[133],"considerable":[135],"improvement":[137],"estimating":[139],"MIMO-LTV":[140],"channels,":[141],"especially":[142],"for":[143],"rapidly":[145],"large":[150],"Doppler":[151],"frequency.":[152]},"abstract_inverted_index_v3":null,"cited_by_api_url":"https://api.openalex.org/works?filter=cites:W2065023248","counts_by_year":[{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":2},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":3}],"updated_date":"2025-02-26T12:18:11.554800","created_date":"2016-06-24"}