{"id":"https://openalex.org/W2133758065","doi":"https://doi.org/10.1109/icc.2009.5199151","title":"Low Complexity Decision Directed Channel Tracking for High Mobility OFDM Systems","display_name":"Low Complexity Decision Directed Channel Tracking for High Mobility OFDM Systems","publication_year":2009,"publication_date":"2009-06-01","ids":{"openalex":"https://openalex.org/W2133758065","doi":"https://doi.org/10.1109/icc.2009.5199151","mag":"2133758065"},"language":"en","primary_location":{"id":"doi:10.1109/icc.2009.5199151","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icc.2009.5199151","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Conference on Communications","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/A5046290878","display_name":"Sheetal Kalyani","orcid":"https://orcid.org/0000-0002-1530-0140"},"institutions":[{"id":"https://openalex.org/I24676775","display_name":"Indian Institute of Technology Madras","ror":"https://ror.org/03v0r5n49","country_code":"IN","type":"facility","lineage":["https://openalex.org/I24676775"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"S. Kalyani","raw_affiliation_strings":["Centre of Excellence in Wireless Technology, Chennai, India","Centre of Excellence in Wireless Technology, IIT Madras Campus, Chennai, India#TAB#"],"affiliations":[{"raw_affiliation_string":"Centre of Excellence in Wireless Technology, Chennai, India","institution_ids":[]},{"raw_affiliation_string":"Centre of Excellence in Wireless Technology, IIT Madras Campus, Chennai, India#TAB#","institution_ids":["https://openalex.org/I24676775"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5035200623","display_name":"K. Giridhar","orcid":null},"institutions":[{"id":"https://openalex.org/I24676775","display_name":"Indian Institute of Technology Madras","ror":"https://ror.org/03v0r5n49","country_code":"IN","type":"facility","lineage":["https://openalex.org/I24676775"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"K. Giridhar","raw_affiliation_strings":["Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai, India","[Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai, India.]"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai, India","institution_ids":["https://openalex.org/I24676775"]},{"raw_affiliation_string":"[Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai, India.]","institution_ids":["https://openalex.org/I24676775"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5046290878"],"corresponding_institution_ids":["https://openalex.org/I24676775"],"apc_list":null,"apc_paid":null,"fwci":0.5982,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.72755358,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"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":0.9994999766349792,"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/T11233","display_name":"Advanced Adaptive Filtering Techniques","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/overhead","display_name":"Overhead (engineering)","score":0.7585088610649109},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7054823637008667},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6911263465881348},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.621067464351654},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.5315060019493103},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.41742733120918274},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.39054030179977417},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.32964858412742615},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.22552338242530823}],"concepts":[{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.7585088610649109},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7054823637008667},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6911263465881348},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.621067464351654},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.5315060019493103},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.41742733120918274},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.39054030179977417},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.32964858412742615},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.22552338242530823},{"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.2009.5199151","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icc.2009.5199151","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Conference on Communications","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":12,"referenced_works":["https://openalex.org/W1514652980","https://openalex.org/W1566865346","https://openalex.org/W2064283172","https://openalex.org/W2141463784","https://openalex.org/W2160015451","https://openalex.org/W2161084585","https://openalex.org/W2162940639","https://openalex.org/W2312194337","https://openalex.org/W2485002209","https://openalex.org/W2487741598","https://openalex.org/W2490749045","https://openalex.org/W4236154753"],"related_works":["https://openalex.org/W2792339401","https://openalex.org/W1823550417","https://openalex.org/W4243590696","https://openalex.org/W2147186021","https://openalex.org/W4321843682","https://openalex.org/W4200390541","https://openalex.org/W2372188366","https://openalex.org/W4317418808","https://openalex.org/W2151541251","https://openalex.org/W4280499399"],"abstract_inverted_index":{"Pilot":[0],"assisted":[1],"channel":[2,10,32,70],"tracking":[3,71],"(PACT)":[4],"has":[5,25,38,129,198],"been":[6],"very":[7],"popular":[8],"for":[9],"estimation":[11],"in":[12,19,31,62,185,240],"OFDM":[13,44],"systems.":[14],"However,":[15],"as":[16],"the":[17,20,34,162,179,182,192,211],"mobility":[18],"system":[21],"increases":[22],"and":[23,58,128,204,215],"one":[24],"to":[26,39,48,81,135,190],"maintain":[27],"a":[28,119,152,172,199,205,228,237],"high":[29,87,143],"accuracy":[30],"estimation,":[33],"pilot":[35,54,63,76,106,230],"overhead":[36,55,64,107,231],"typically":[37],"be":[40,66,113],"increased.":[41],"Emerging":[42],"cellular":[43],"standards":[45],"are":[46],"expected":[47],"use":[49],"about":[50],"6":[51],"-":[52],"12%":[53],"per":[56],"stream,":[57],"any":[59],"possible":[60],"reduction":[61],"would":[65,112],"useful.":[67],"Decision":[68],"directed":[69,213],"(DDCT)":[72],"can":[73],"help":[74],"reduce":[75],"overhead,":[77],"but":[78],"is":[79,155],"known":[80],"suffer":[82,124],"from":[83,125],"error":[84,126,131,195,207],"propagation":[85,127],"at":[86,142],"fade":[88,144],"rates.":[89],"In":[90,167],"emerging":[91],"broadband":[92],"wireless":[93],"systems":[94],"promising":[95],"peak":[96],"bit":[97],"rates":[98],"of":[99,150,161,181,194],"50":[100],"Mbps":[101],"or":[102],"more,":[103],"saving":[104],"on":[105],"by":[108],"using":[109],"DDCT":[110,120,153,175,221],"schemes":[111,140],"highly":[114],"attractive":[115],"provided:":[116],"(a)":[117],"Such":[118],"approach":[121,154],"does":[122],"not":[123,156],"an":[130],"rate":[132,208],"performance":[133,209],"comparable":[134],"(or":[136],"better":[137,206],"than)":[138],"PACT":[139,165,233],"even":[141],"rates;":[145],"(b)":[146],"The":[147,223],"computational":[148,202,241],"complexity":[149,174,203],"such":[151],"significantly":[157],"more":[158],"than":[159,210],"that":[160],"MMSE":[163],"based":[164,220,232],"scheme.":[166],"this":[168],"work,":[169],"we":[170],"propose":[171],"low":[173],"method":[176,225],"which":[177],"exploits":[178],"structure":[180],"regression":[183],"matrix":[184],"conjunction":[186],"with":[187,235],"robust":[188,218],"statistics":[189,219],"mitigate":[191],"effect":[193],"propagation.":[196],"It":[197],"much":[200],"lower":[201],"decision":[212],"EM-Kalman":[214],"other":[216],"existing":[217],"schemes.":[222],"proposed":[224],"also":[226],"outperforms":[227],"12.5%":[229],"scheme":[234],"only":[236],"modest":[238],"increase":[239],"complexity.":[242]},"counts_by_year":[{"year":2019,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}