{"id":"https://openalex.org/W2088273871","doi":"https://doi.org/10.1109/glocom.2011.6134004","title":"A Joint QR-LS Based Coarse-Fine Channel Estimation and QR-LRL Detection for Mobile WiMAX 802.16m","display_name":"A Joint QR-LS Based Coarse-Fine Channel Estimation and QR-LRL Detection for Mobile WiMAX 802.16m","publication_year":2011,"publication_date":"2011-12-01","ids":{"openalex":"https://openalex.org/W2088273871","doi":"https://doi.org/10.1109/glocom.2011.6134004","mag":"2088273871"},"language":"en","primary_location":{"id":"doi:10.1109/glocom.2011.6134004","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2011.6134004","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE Global Telecommunications Conference - GLOBECOM 2011","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/A5004457985","display_name":"Divyang Rawal","orcid":"https://orcid.org/0000-0001-9602-1022"},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"D. Rawal","raw_affiliation_strings":["Wireless Packet Modem Division, E.T.R.I., Daejeon, South Korea","Wireless Packet Modem Div., E.T.R.I., Daejeon, South Korea"],"affiliations":[{"raw_affiliation_string":"Wireless Packet Modem Division, E.T.R.I., Daejeon, South Korea","institution_ids":[]},{"raw_affiliation_string":"Wireless Packet Modem Div., E.T.R.I., Daejeon, South Korea","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035898390","display_name":"Yonghoon Park","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Y. Park","raw_affiliation_strings":["Wireless Packet Modem Division, E.T.R.I., Daejeon, South Korea","Wireless Packet Modem Div., E.T.R.I., Daejeon, South Korea"],"affiliations":[{"raw_affiliation_string":"Wireless Packet Modem Division, E.T.R.I., Daejeon, South Korea","institution_ids":[]},{"raw_affiliation_string":"Wireless Packet Modem Div., E.T.R.I., Daejeon, South Korea","institution_ids":[]}]},{"author_position":"middle","author":{"id":null,"display_name":"C. Vijaykumar","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"C. Vijaykumar","raw_affiliation_strings":["Wireless Packet Modem Division, E.T.R.I., Daejeon, South Korea","Wireless Packet Modem Div., E.T.R.I., Daejeon, South Korea"],"affiliations":[{"raw_affiliation_string":"Wireless Packet Modem Division, E.T.R.I., Daejeon, South Korea","institution_ids":[]},{"raw_affiliation_string":"Wireless Packet Modem Div., E.T.R.I., Daejeon, South Korea","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090545099","display_name":"Hee Sun Park","orcid":"https://orcid.org/0000-0002-9730-8524"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"H. S. Park","raw_affiliation_strings":["Wireless Packet Modem Division, E.T.R.I., Daejeon, South Korea","Wireless Packet Modem Div., E.T.R.I., Daejeon, South Korea"],"affiliations":[{"raw_affiliation_string":"Wireless Packet Modem Division, E.T.R.I., Daejeon, South Korea","institution_ids":[]},{"raw_affiliation_string":"Wireless Packet Modem Div., E.T.R.I., Daejeon, South Korea","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5065894979","display_name":"Heunchul Lee","orcid":"https://orcid.org/0000-0002-5364-2627"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"H. Lee","raw_affiliation_strings":["Wireless Packet Modem Division, E.T.R.I., Daejeon, South Korea","Wireless Packet Modem Div., E.T.R.I., Daejeon, South Korea"],"affiliations":[{"raw_affiliation_string":"Wireless Packet Modem Division, E.T.R.I., Daejeon, South Korea","institution_ids":[]},{"raw_affiliation_string":"Wireless Packet Modem Div., E.T.R.I., Daejeon, South Korea","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5004457985"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.13244909,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"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":0.9998999834060669,"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":0.9998999834060669,"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":0.9994000196456909,"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/T11409","display_name":"Advanced Wireless Network Optimization","score":0.9991999864578247,"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/computer-science","display_name":"Computer science","score":0.7299108505249023},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.7047280073165894},{"id":"https://openalex.org/keywords/wimax","display_name":"WiMAX","score":0.6291849613189697},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5909703373908997},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.5598517656326294},{"id":"https://openalex.org/keywords/preamble","display_name":"Preamble","score":0.5156444311141968},{"id":"https://openalex.org/keywords/subcarrier","display_name":"Subcarrier","score":0.4226154088973999},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.36496055126190186},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.28280436992645264},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.27144065499305725},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2413957417011261},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.19702467322349548}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7299108505249023},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.7047280073165894},{"id":"https://openalex.org/C113950482","wikidata":"https://www.wikidata.org/wiki/Q133973","display_name":"WiMAX","level":3,"score":0.6291849613189697},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5909703373908997},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.5598517656326294},{"id":"https://openalex.org/C2780691134","wikidata":"https://www.wikidata.org/wiki/Q1129448","display_name":"Preamble","level":3,"score":0.5156444311141968},{"id":"https://openalex.org/C198329298","wikidata":"https://www.wikidata.org/wiki/Q586358","display_name":"Subcarrier","level":4,"score":0.4226154088973999},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.36496055126190186},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.28280436992645264},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.27144065499305725},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2413957417011261},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.19702467322349548}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/glocom.2011.6134004","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2011.6134004","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE Global Telecommunications Conference - GLOBECOM 2011","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W87496662","https://openalex.org/W1492221128","https://openalex.org/W1596939795","https://openalex.org/W1667950888","https://openalex.org/W1990282671","https://openalex.org/W2041361520","https://openalex.org/W2098694510","https://openalex.org/W2103699908","https://openalex.org/W2114004090","https://openalex.org/W2114067040","https://openalex.org/W2151473476","https://openalex.org/W2158822811"],"related_works":["https://openalex.org/W3131553538","https://openalex.org/W2369766703","https://openalex.org/W3204754495","https://openalex.org/W2392460115","https://openalex.org/W4402159933","https://openalex.org/W2391859761","https://openalex.org/W2606162559","https://openalex.org/W2574894588","https://openalex.org/W1976817570","https://openalex.org/W2155572290"],"abstract_inverted_index":{"In":[0,74],"this":[1,55],"paper,":[2],"We":[3],"extended":[4],"our":[5],"previous":[6],"work":[7],"of":[8,101],"QR-RLS":[9,91],"based":[10,164,188],"MIMO(Multiple":[11],"input":[12],"Multiple":[13],"output)":[14],"channel":[15,71,87,97,107,122,127,140,158,180,189],"estimation":[16,49,72,98,150,190,200],"to":[17,53,124,136],"Mobile":[18,22,63],"Wimax":[19,64],"802.16m":[20],"system.":[21],"wimax":[23],"system":[24],"provides":[25,43],"high":[26,38],"data":[27,146,165],"rate,":[28],"also":[29,42],"fulfills":[30],"user's":[31],"requirement":[32],"like":[33],"VOD(Video":[34],"on":[35],"demand)at":[36],"very":[37],"vehicle":[39],"speed":[40],"and":[41,68,80],"better":[44,202],"cell":[45],"coverage":[46],"area.":[47],"Channel":[48],"is":[50,108,133,159],"crucial":[51],"part":[52],"achieve":[54],"goals":[56],"especially":[57],"in":[58],"fast":[59],"fading":[60,128,131,181],"environment.":[61],"Generally,":[62],"systems":[65],"uses":[66,93],"Preamble":[67,94],"Pilots":[69],"for":[70,85,95],"purpose.":[73],"the":[75,105,120,126,139],"proposed":[76],"method":[77],"both":[78],"preamble":[79],"pilots":[81,111],"are":[82,116,171,175,184],"jointly":[83,117],"used":[84,118,135,161],"robust":[86,149],"estimation.":[88],"At":[89],"First,":[90],"Estimator":[92],"coarse":[96,106,121],"at":[99,141],"start":[100],"every":[102],"frame.":[103],"Once":[104],"estimated,":[109],"then":[110,134,160],"(scattered":[112],"throughout":[113],"time-frequency":[114],"grid)":[115],"with":[119,162,186,191],"component":[123],"derive":[125],"rate.":[129],"This":[130],"rate":[132],"finely":[137],"estimate":[138],"pilot":[142,187],"as":[143,145],"well":[144],"subcarrier.":[147],"Thus":[148],"results":[151,174],"without":[152],"adding":[153],"any":[154],"overhead.":[155],"Jointly":[156],"estimated":[157],"QR-LRL":[163],"detection,":[166],"where":[167],"hard":[168],"decision":[169],"values":[170],"calculated.":[172],"Simulation":[173],"shown":[176],"under":[177],"various":[178],"slow-fast":[179],"conditions.":[182],"Results":[183],"compared":[185],"LS(least":[192],"square)":[193],"interpolation,":[194],"which":[195],"shows":[196],"that":[197],"joint":[198],"coarse-Fine":[199],"gives":[201],"performance.":[203]},"counts_by_year":[{"year":2020,"cited_by_count":2},{"year":2016,"cited_by_count":1}],"updated_date":"2026-03-25T23:56:10.502304","created_date":"2025-10-10T00:00:00"}