{"id":"https://openalex.org/W2100108191","doi":"https://doi.org/10.1109/icc.2011.5962561","title":"Excessively Long Channel Estimation for CDD OFDM Systems Using Superimposed Pilots","display_name":"Excessively Long Channel Estimation for CDD OFDM Systems Using Superimposed Pilots","publication_year":2011,"publication_date":"2011-06-01","ids":{"openalex":"https://openalex.org/W2100108191","doi":"https://doi.org/10.1109/icc.2011.5962561","mag":"2100108191"},"language":"en","primary_location":{"id":"doi:10.1109/icc.2011.5962561","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icc.2011.5962561","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE International Conference on Communications (ICC)","raw_type":"proceedings-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":true,"raw_author_name":"Weikun Hou","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Western Ontario, London, ONT, Canada","Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, ON, Canada#TAB#"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Western Ontario, London, ONT, Canada","institution_ids":["https://openalex.org/I125749732"]},{"raw_affiliation_string":"Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, ON, Canada#TAB#","institution_ids":["https://openalex.org/I125749732"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100733413","display_name":"Xianbin Wang","orcid":"https://orcid.org/0000-0003-4890-0748"},"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":"Xianbin Wang","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Western Ontario, London, ONT, Canada","Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, ON, Canada#TAB#"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Western Ontario, London, ONT, Canada","institution_ids":["https://openalex.org/I125749732"]},{"raw_affiliation_string":"Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, ON, Canada#TAB#","institution_ids":["https://openalex.org/I125749732"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5102717342"],"corresponding_institution_ids":["https://openalex.org/I125749732"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.13724975,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"2","issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":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/T11873","display_name":"PAPR reduction in OFDM","score":0.998199999332428,"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/T12146","display_name":"Power Line Communications and Noise","score":0.9980000257492065,"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/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.8678543567657471},{"id":"https://openalex.org/keywords/subcarrier","display_name":"Subcarrier","score":0.8525131940841675},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.7113171219825745},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6885620951652527},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.6726371049880981},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.5915485620498657},{"id":"https://openalex.org/keywords/exploit","display_name":"Exploit","score":0.5148348212242126},{"id":"https://openalex.org/keywords/frequency-domain","display_name":"Frequency domain","score":0.4675378203392029},{"id":"https://openalex.org/keywords/diversity-scheme","display_name":"Diversity scheme","score":0.4414961636066437},{"id":"https://openalex.org/keywords/frequency-division-multiplexing","display_name":"Frequency-division multiplexing","score":0.4350104033946991},{"id":"https://openalex.org/keywords/pilot-signal","display_name":"Pilot signal","score":0.4192301630973816},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.41730996966362},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.24674510955810547},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.19506046175956726}],"concepts":[{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.8678543567657471},{"id":"https://openalex.org/C198329298","wikidata":"https://www.wikidata.org/wiki/Q586358","display_name":"Subcarrier","level":4,"score":0.8525131940841675},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.7113171219825745},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6885620951652527},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.6726371049880981},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.5915485620498657},{"id":"https://openalex.org/C165696696","wikidata":"https://www.wikidata.org/wiki/Q11287","display_name":"Exploit","level":2,"score":0.5148348212242126},{"id":"https://openalex.org/C19118579","wikidata":"https://www.wikidata.org/wiki/Q786423","display_name":"Frequency domain","level":2,"score":0.4675378203392029},{"id":"https://openalex.org/C198746922","wikidata":"https://www.wikidata.org/wiki/Q1230593","display_name":"Diversity scheme","level":4,"score":0.4414961636066437},{"id":"https://openalex.org/C89061704","wikidata":"https://www.wikidata.org/wiki/Q5555726","display_name":"Frequency-division multiplexing","level":4,"score":0.4350104033946991},{"id":"https://openalex.org/C197264572","wikidata":"https://www.wikidata.org/wiki/Q2095206","display_name":"Pilot signal","level":3,"score":0.4192301630973816},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.41730996966362},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.24674510955810547},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.19506046175956726},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.0},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icc.2011.5962561","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icc.2011.5962561","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE International Conference on Communications (ICC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":14,"referenced_works":["https://openalex.org/W1546478557","https://openalex.org/W1564497893","https://openalex.org/W1592296944","https://openalex.org/W1974733725","https://openalex.org/W2004615135","https://openalex.org/W2108655642","https://openalex.org/W2109540363","https://openalex.org/W2111718362","https://openalex.org/W2114281651","https://openalex.org/W2134903340","https://openalex.org/W2145892002","https://openalex.org/W2151594164","https://openalex.org/W2152989898","https://openalex.org/W6681146686"],"related_works":["https://openalex.org/W2055131418","https://openalex.org/W1501039677","https://openalex.org/W2019909929","https://openalex.org/W2306672848","https://openalex.org/W4243590696","https://openalex.org/W2149930744","https://openalex.org/W2135607366","https://openalex.org/W2047897212","https://openalex.org/W2107747917","https://openalex.org/W2410705835"],"abstract_inverted_index":{"To":[0],"fully":[1],"exploit":[2,138],"frequency":[3,10,37,47,71,96,105],"diversity":[4,8],"in":[5,27,45,74,168,176],"cyclic":[6],"delay":[7,25],"orthogonal":[9],"division":[11],"multiplexing":[12],"(CDD-OFDM)":[13],"system,":[14],"accurate":[15],"channel":[16,24,33,82,121,141,147],"estimation":[17,34],"is":[18,100,116,166],"crucial.":[19],"Due":[20],"to":[21,40,64,68,78,103,118,137,154],"the":[22,42,46,55,84,108,120,132,139,145,160,163],"excessive":[23],"spread":[26],"CDD,":[28],"traditional":[29],"in-band":[30,79],"pilot":[31,51,80,88,177],"assisted":[32],"with":[35,87],"limited":[36],"resolution":[38],"fails":[39],"track":[41],"considerable":[43],"variation":[44],"domain.":[48],"Alternatively,":[49],"increasing":[50],"overhead":[52],"will":[53],"degrade":[54],"system":[56],"throughput":[57],"significantly.":[58],"In":[59],"this":[60],"paper,":[61],"we":[62],"propose":[63],"use":[65],"superimposed":[66,90,125],"pilots":[67,126],"estimate":[69,119],"highly":[70],"selective":[72],"channels":[73,172],"CDD-OFDM":[75],"systems.":[76],"Compared":[77],"based":[81,123],"estimation,":[83],"proposed":[85,164],"scheme":[86,165],"symbols":[89],"over":[91],"each":[92,135],"subcarrier":[93],"has":[94],"full":[95],"resolution,":[97],"hence":[98],"it":[99],"more":[101],"robust":[102],"severe":[104],"selectivity":[106],"from":[107],"excessively":[109],"long":[110],"CDD":[111],"channel.":[112],"Expectation-Maximization":[113],"(EM)":[114],"algorithm":[115],"employed":[117],"iteratively":[122],"on":[124],"and":[127,143,151],"tentative":[128],"soft":[129],"decisions.":[130],"At":[131],"end":[133],"of":[134,162],"iteration,":[136],"inherent":[140],"sparsity":[142],"refine":[144],"estimate,":[146],"taps":[148],"are":[149],"sorted":[150],"selected":[152],"according":[153],"power.":[155],"Simulation":[156],"results":[157],"show":[158],"that":[159],"performance":[161],"promising":[167],"time":[169],"varying":[170],"fading":[171],"without":[173],"an":[174],"increase":[175],"overhead.":[178]},"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2018,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
