{"id":"https://openalex.org/W2138435623","doi":"https://doi.org/10.1109/wcnc.2009.4917846","title":"On Pilot Design for Channel Estimation and MUI Reduction in Uplink OFDMA Systems","display_name":"On Pilot Design for Channel Estimation and MUI Reduction in Uplink OFDMA Systems","publication_year":2009,"publication_date":"2009-04-01","ids":{"openalex":"https://openalex.org/W2138435623","doi":"https://doi.org/10.1109/wcnc.2009.4917846","mag":"2138435623"},"language":"en","primary_location":{"id":"doi:10.1109/wcnc.2009.4917846","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcnc.2009.4917846","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE Wireless Communications and Networking Conference","raw_type":"proceedings-article"},"type":"conference-paper","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/A5086615337","display_name":"Wei-Chieh Huang","orcid":"https://orcid.org/0000-0002-2204-6355"},"institutions":[{"id":"https://openalex.org/I16733864","display_name":"National Taiwan University","ror":"https://ror.org/05bqach95","country_code":"TW","type":"education","lineage":["https://openalex.org/I16733864"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Wei-Chieh Huang","raw_affiliation_strings":["Graduate Institute of Communication Engineering, National Taiwan University, Taipei, Taiwan","Graduate Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate Institute of Communication Engineering, National Taiwan University, Taipei, Taiwan","institution_ids":["https://openalex.org/I16733864"]},{"raw_affiliation_string":"Graduate Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan","institution_ids":["https://openalex.org/I16733864"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054783309","display_name":"Xin-Zhe He","orcid":null},"institutions":[{"id":"https://openalex.org/I142974352","display_name":"National Sun Yat-sen University","ror":"https://ror.org/00mjawt10","country_code":"TW","type":"education","lineage":["https://openalex.org/I142974352"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Xin-Zhe He","raw_affiliation_strings":["Institute of Communications Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan","Inst. of Communications Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Communications Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan","institution_ids":["https://openalex.org/I142974352"]},{"raw_affiliation_string":"Inst. of Communications Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan","institution_ids":["https://openalex.org/I142974352"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075166866","display_name":"Chih\u2013Peng Li","orcid":"https://orcid.org/0000-0003-0050-0921"},"institutions":[{"id":"https://openalex.org/I142974352","display_name":"National Sun Yat-sen University","ror":"https://ror.org/00mjawt10","country_code":"TW","type":"education","lineage":["https://openalex.org/I142974352"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Chih-Peng Li","raw_affiliation_strings":["Institute of Communications Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan","Inst. of Communications Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Communications Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan","institution_ids":["https://openalex.org/I142974352"]},{"raw_affiliation_string":"Inst. of Communications Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan","institution_ids":["https://openalex.org/I142974352"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5091494140","display_name":"Hsueh\u2010Jyh Li","orcid":null},"institutions":[{"id":"https://openalex.org/I16733864","display_name":"National Taiwan University","ror":"https://ror.org/05bqach95","country_code":"TW","type":"education","lineage":["https://openalex.org/I16733864"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Hsueh-Jyh Li","raw_affiliation_strings":["Graduate Institute of Communication Engineering, National Taiwan University, Taipei, Taiwan","Graduate Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate Institute of Communication Engineering, National Taiwan University, Taipei, Taiwan","institution_ids":["https://openalex.org/I16733864"]},{"raw_affiliation_string":"Graduate Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan","institution_ids":["https://openalex.org/I16733864"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"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/T10575","display_name":"Wireless Communication Networks Research","score":0.9995999932289124,"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":0.9990000128746033,"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/telecommunications-link","display_name":"Telecommunications link","score":0.7488205432891846},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiple-access","display_name":"Orthogonal frequency-division multiple access","score":0.7129924893379211},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.655427098274231},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6075119376182556},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.6056621670722961},{"id":"https://openalex.org/keywords/frequency-division-multiple-access","display_name":"Frequency-division multiple access","score":0.5690932273864746},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5263660550117493},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.4963698983192444},{"id":"https://openalex.org/keywords/guard","display_name":"Guard (computer science)","score":0.481275737285614},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.45541122555732727},{"id":"https://openalex.org/keywords/reduction","display_name":"Reduction (mathematics)","score":0.4339805245399475},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.4268147349357605},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.2832600772380829}],"concepts":[{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7488205432891846},{"id":"https://openalex.org/C2775907427","wikidata":"https://www.wikidata.org/wiki/Q2697649","display_name":"Orthogonal frequency-division multiple access","level":4,"score":0.7129924893379211},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.655427098274231},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6075119376182556},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.6056621670722961},{"id":"https://openalex.org/C2776208322","wikidata":"https://www.wikidata.org/wiki/Q844071","display_name":"Frequency-division multiple access","level":4,"score":0.5690932273864746},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5263660550117493},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.4963698983192444},{"id":"https://openalex.org/C141141315","wikidata":"https://www.wikidata.org/wiki/Q2379942","display_name":"Guard (computer science)","level":2,"score":0.481275737285614},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.45541122555732727},{"id":"https://openalex.org/C111335779","wikidata":"https://www.wikidata.org/wiki/Q3454686","display_name":"Reduction (mathematics)","level":2,"score":0.4339805245399475},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.4268147349357605},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2832600772380829},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/wcnc.2009.4917846","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcnc.2009.4917846","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE Wireless Communications and Networking Conference","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.4300000071525574,"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W2108910844","https://openalex.org/W2116093748","https://openalex.org/W2124320977","https://openalex.org/W2133920396","https://openalex.org/W2145492677","https://openalex.org/W2153060597","https://openalex.org/W2165407088","https://openalex.org/W2170140021","https://openalex.org/W2187326887"],"related_works":["https://openalex.org/W2025189274","https://openalex.org/W2092365485","https://openalex.org/W1585503616","https://openalex.org/W2004574319","https://openalex.org/W2063285884","https://openalex.org/W2383112630","https://openalex.org/W1843974825","https://openalex.org/W1543564974","https://openalex.org/W2060870071","https://openalex.org/W2224554958"],"abstract_inverted_index":{"One":[0],"of":[1,5,46,93,98,113],"the":[2,6,15,21,44,53,61,64,107,114],"major":[3],"drawbacks":[4],"orthogonal":[7],"frequency":[8,23,36],"division":[9],"multiple":[10],"access":[11],"(OFDMA)":[12],"system":[13],"is":[14,57,66,83],"multi-user":[16],"interference":[17],"(MUI)":[18],"induced":[19],"by":[20,60,68],"carrier":[22],"offsets":[24],"(CFOs).":[25],"In":[26,76],"sub-band":[27,48,95],"based":[28],"OFDMA":[29],"systems,":[30],"users":[31,100],"occupy":[32],"consecutive":[33],"and":[34,96,120,126],"non-overlapping":[35],"sub-bands.":[37],"The":[38,103],"pilots":[39,87,97],"are":[40,88,101],"usually":[41],"placed":[42,89],"on":[43,90],"edges":[45],"a":[47,70,79,94],"for":[49],"channel":[50,54,123],"estimation.":[51],"However,":[52],"estimation":[55,124],"performance":[56,125],"seriously":[58],"degraded":[59],"MUI.":[62],"Traditionally,":[63],"MUI":[65,127],"alleviated":[67],"inserting":[69],"guard":[71,116],"sub-carrier":[72,117],"between":[73],"adjacent":[74,99],"users.":[75],"this":[77],"paper,":[78],"novel":[80],"pilot":[81],"architecture":[82,105],"proposed,":[84],"where":[85],"three":[86],"each":[91],"edge":[92],"overlapped.":[102],"proposed":[104],"has":[106],"same":[108],"bandwidth":[109],"efficiency":[110],"as":[111],"that":[112],"conventional":[115],"insertion":[118],"scheme":[119],"provides":[121],"better":[122],"reduction.":[128]},"counts_by_year":[{"year":2015,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}