{"id":"https://openalex.org/W2010342183","doi":"https://doi.org/10.1109/vetecs.2012.6240303","title":"Performance of Decision-Directed Channel Estimation Using Low-Rate Turbo Codes for DFT-Precoded OFDMA","display_name":"Performance of Decision-Directed Channel Estimation Using Low-Rate Turbo Codes for DFT-Precoded OFDMA","publication_year":2012,"publication_date":"2012-05-01","ids":{"openalex":"https://openalex.org/W2010342183","doi":"https://doi.org/10.1109/vetecs.2012.6240303","mag":"2010342183"},"language":"en","primary_location":{"id":"doi:10.1109/vetecs.2012.6240303","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vetecs.2012.6240303","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 IEEE 75th Vehicular Technology Conference (VTC Spring)","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/A5063035246","display_name":"Keita Miwa","orcid":null},"institutions":[{"id":"https://openalex.org/I165522056","display_name":"Tokyo Denki University","ror":"https://ror.org/01pa62v70","country_code":"JP","type":"education","lineage":["https://openalex.org/I165522056"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Keita Miwa","raw_affiliation_strings":["Department of Information Network Engineering, Tokyo Denki University, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Information Network Engineering, Tokyo Denki University, Japan","institution_ids":["https://openalex.org/I165522056"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004412372","display_name":"Nobuhiko Miki","orcid":"https://orcid.org/0000-0003-1195-8452"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Nobuhiko Miki","raw_affiliation_strings":["Research Laboratories, NTT Docomo, Inc., Japan"],"affiliations":[{"raw_affiliation_string":"Research Laboratories, NTT Docomo, Inc., Japan","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109143156","display_name":"Teruo Kawamura","orcid":null},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Teruo Kawamura","raw_affiliation_strings":["Radio Access Network Development Department, NTT Docomo, Inc., Japan"],"affiliations":[{"raw_affiliation_string":"Radio Access Network Development Department, NTT Docomo, Inc., Japan","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5066811243","display_name":"Mamoru Sawahashi","orcid":null},"institutions":[{"id":"https://openalex.org/I165522056","display_name":"Tokyo Denki University","ror":"https://ror.org/01pa62v70","country_code":"JP","type":"education","lineage":["https://openalex.org/I165522056"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Mamoru Sawahashi","raw_affiliation_strings":["Department of Information Network Engineering, Tokyo Denki University, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Information Network Engineering, Tokyo Denki University, Japan","institution_ids":["https://openalex.org/I165522056"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5063035246"],"corresponding_institution_ids":["https://openalex.org/I165522056"],"apc_list":null,"apc_paid":null,"fwci":1.2275,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.80846322,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"4","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/T10575","display_name":"Wireless Communication Networks Research","score":0.9991000294685364,"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/T11321","display_name":"Error Correcting Code Techniques","score":0.9983999729156494,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/turbo-code","display_name":"Turbo code","score":0.7556055784225464},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.615035891532898},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.6018111109733582},{"id":"https://openalex.org/keywords/turbo-equalizer","display_name":"Turbo equalizer","score":0.5726515650749207},{"id":"https://openalex.org/keywords/coding-gain","display_name":"Coding gain","score":0.5549898743629456},{"id":"https://openalex.org/keywords/block-error-rate","display_name":"Block Error Rate","score":0.5342292785644531},{"id":"https://openalex.org/keywords/code-rate","display_name":"Code rate","score":0.4822583794593811},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.4300438165664673},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.4232177734375},{"id":"https://openalex.org/keywords/concatenated-error-correction-code","display_name":"Concatenated error correction code","score":0.42077577114105225},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.3993295729160309},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.3211992084980011},{"id":"https://openalex.org/keywords/block-code","display_name":"Block code","score":0.200185626745224},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1903240978717804}],"concepts":[{"id":"https://openalex.org/C114504821","wikidata":"https://www.wikidata.org/wiki/Q2164281","display_name":"Turbo code","level":3,"score":0.7556055784225464},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.615035891532898},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.6018111109733582},{"id":"https://openalex.org/C12232224","wikidata":"https://www.wikidata.org/wiki/Q7853840","display_name":"Turbo equalizer","level":5,"score":0.5726515650749207},{"id":"https://openalex.org/C76862118","wikidata":"https://www.wikidata.org/wiki/Q1105671","display_name":"Coding gain","level":3,"score":0.5549898743629456},{"id":"https://openalex.org/C2776639698","wikidata":"https://www.wikidata.org/wiki/Q4927140","display_name":"Block Error Rate","level":3,"score":0.5342292785644531},{"id":"https://openalex.org/C206468330","wikidata":"https://www.wikidata.org/wiki/Q834373","display_name":"Code rate","level":3,"score":0.4822583794593811},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.4300438165664673},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.4232177734375},{"id":"https://openalex.org/C78944582","wikidata":"https://www.wikidata.org/wiki/Q5158264","display_name":"Concatenated error correction code","level":4,"score":0.42077577114105225},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.3993295729160309},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3211992084980011},{"id":"https://openalex.org/C157125643","wikidata":"https://www.wikidata.org/wiki/Q884707","display_name":"Block code","level":3,"score":0.200185626745224},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1903240978717804}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/vetecs.2012.6240303","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vetecs.2012.6240303","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 IEEE 75th Vehicular Technology Conference (VTC Spring)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","id":"https://metadata.un.org/sdg/16","score":0.6299999952316284}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W1537712253","https://openalex.org/W1606354641","https://openalex.org/W1906200282","https://openalex.org/W2096972061","https://openalex.org/W2102251435","https://openalex.org/W2108656301","https://openalex.org/W2118128885","https://openalex.org/W2134595058","https://openalex.org/W2136664329","https://openalex.org/W2141619954","https://openalex.org/W2149099533","https://openalex.org/W2150466451","https://openalex.org/W2163982637"],"related_works":["https://openalex.org/W2074933278","https://openalex.org/W2034203628","https://openalex.org/W2149058900","https://openalex.org/W2126450554","https://openalex.org/W940579099","https://openalex.org/W2086485152","https://openalex.org/W1673598420","https://openalex.org/W1583152740","https://openalex.org/W2149939685","https://openalex.org/W2118920720"],"abstract_inverted_index":{"A":[0],"low-rate":[1,30,65,120],"turbo":[2,31,66,121,147],"code":[3,32,67,148],"can":[4],"reduce":[5],"the":[6,16,46,54,81,91,100,119,124,128,136,146,155,165,171,180,193,200,206],"required":[7,166,201],"average":[8,55,167,172,202],"received":[9,168,203],"signal-to-noise":[10],"power":[11],"ratio":[12,93],"(SNR)":[13],"that":[14,144,191,225],"satisfies":[15],"target":[17],"block":[18],"error":[19,39],"rate":[20],"(BLER)":[21],"due":[22,134],"to":[23,110,135,190,224],"its":[24],"high":[25],"coding":[26,48,138],"gain.":[27,49,139],"When":[28],"a":[29,41,64,103,198],"is":[33,163,182,214],"used":[34],"however,":[35],"channel":[36,60],"estimation":[37,61,88],"(CE)":[38],"becomes":[40,131],"bottleneck":[42],"in":[43,68,108],"bringing":[44],"out":[45],"potential":[47],"Therefore,":[50],"this":[51],"paper":[52],"presents":[53],"BLER":[56,173],"performance":[57],"using":[58,179,205],"decision-directed":[59],"(DDCE)":[62],"for":[63,192,208,226],"uplink":[69],"Discrete":[70],"Fourier":[71],"transform":[72],"(DFT)-precoded":[73],"orthogonal":[74],"frequency":[75],"division":[76],"multiple":[77],"access":[78],"(OFDMA).":[79],"In":[80],"proposed":[82],"DDCE,":[83],"we":[84],"employ":[85],"soft-decision":[86],"symbol":[87],"based":[89,195],"on":[90],"log-likelihood":[92],"(LLR)":[94],"of":[95,158,174],"an":[96],"extrinsic":[97,125],"probability":[98],"at":[99,127,170],"Max-Log-MAP":[101,129],"(maximum":[102],"posteriori":[104],"probability)":[105],"decoder":[106,130],"output":[107],"addition":[109],"reference":[111],"signals":[112],"(RSs).":[113],"The":[114],"DDCE":[115,181,207],"works":[116],"synergistically":[117],"with":[118,149],"code,":[122],"since":[123],"LLR":[126],"more":[132],"reliable":[133],"increasing":[137],"Computer":[140],"simulation":[141],"results":[142],"show":[143],"when":[145],"R":[150,209,227],"=":[151,160,210,228],"1/15":[152,211],"(1/9)":[153],"and":[154,212,219],"constraint":[156],"length":[157],"K":[159],"4":[161],"bits":[162],"used,":[164],"SNR":[169,204],"10":[175],"<sup":[176],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[177],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">-2</sup>":[178],"decreased":[183,215],"by":[184,216],"approximately":[185,217],"0.6":[186],"(0.4)":[187],"dB":[188],"compared":[189,223],"RS":[194],"CE.":[196],"As":[197],"result,":[199],"1/9":[213],"7.0":[218],"5.0":[220],"dB,":[221],"respectively,":[222],"1/3.":[229]},"counts_by_year":[{"year":2020,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}