{"id":"https://openalex.org/W2137446833","doi":"https://doi.org/10.1109/glocom.2010.5683722","title":"Pilot Symbol Assisted Adaptive Modulation for OFDM Systems with Imperfect Channel State Information","display_name":"Pilot Symbol Assisted Adaptive Modulation for OFDM Systems with Imperfect Channel State Information","publication_year":2010,"publication_date":"2010-12-01","ids":{"openalex":"https://openalex.org/W2137446833","doi":"https://doi.org/10.1109/glocom.2010.5683722","mag":"2137446833"},"language":"en","primary_location":{"id":"doi:10.1109/glocom.2010.5683722","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2010.5683722","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2010 IEEE Global Telecommunications Conference GLOBECOM 2010","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/A5072817701","display_name":"Mahdi Karami","orcid":"https://orcid.org/0000-0002-5096-6204"},"institutions":[{"id":"https://openalex.org/I154425047","display_name":"University of Alberta","ror":"https://ror.org/0160cpw27","country_code":"CA","type":"education","lineage":["https://openalex.org/I154425047"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Mahdi Karami","raw_affiliation_strings":["ICORE Wireless Communications Laboratory, Department Electrical & Computer Engineering, University of Alberta, Edmonton, AB, Canada","Dept. Electr. & Comp. Eng., Univ. of Alberta, Edmonton, AB, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"ICORE Wireless Communications Laboratory, Department Electrical & Computer Engineering, University of Alberta, Edmonton, AB, Canada","institution_ids":["https://openalex.org/I154425047"]},{"raw_affiliation_string":"Dept. Electr. & Comp. Eng., Univ. of Alberta, Edmonton, AB, Canada","institution_ids":["https://openalex.org/I154425047"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079339295","display_name":"Ali Olfat","orcid":"https://orcid.org/0000-0002-0246-8067"},"institutions":[{"id":"https://openalex.org/I23946033","display_name":"University of Tehran","ror":"https://ror.org/05vf56z40","country_code":"IR","type":"education","lineage":["https://openalex.org/I23946033"]}],"countries":["IR"],"is_corresponding":false,"raw_author_name":"Ali Olfat","raw_affiliation_strings":["School of ECE, College of Engineering, University of Tehran, Tehran, Iran","School of ECE , University of Tehran , Tehran , Iran"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of ECE, College of Engineering, University of Tehran, Tehran, Iran","institution_ids":["https://openalex.org/I23946033"]},{"raw_affiliation_string":"School of ECE , University of Tehran , Tehran , Iran","institution_ids":["https://openalex.org/I23946033"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5038087450","display_name":"Norman C. Beaulieu","orcid":"https://orcid.org/0000-0001-9233-219X"},"institutions":[{"id":"https://openalex.org/I154425047","display_name":"University of Alberta","ror":"https://ror.org/0160cpw27","country_code":"CA","type":"education","lineage":["https://openalex.org/I154425047"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Norman C. Beaulieu","raw_affiliation_strings":["ICORE Wireless Communications Laboratory, Department Electrical & Computer Engineering, University of Alberta, Edmonton, AB, Canada","Dept. Electr. & Comp. Eng., Univ. of Alberta, Edmonton, AB, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"ICORE Wireless Communications Laboratory, Department Electrical & Computer Engineering, University of Alberta, Edmonton, AB, Canada","institution_ids":["https://openalex.org/I154425047"]},{"raw_affiliation_string":"Dept. Electr. & Comp. Eng., Univ. of Alberta, Edmonton, AB, Canada","institution_ids":["https://openalex.org/I154425047"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.7802,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.8534237,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"1","issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11409","display_name":"Advanced Wireless Network Optimization","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/T11409","display_name":"Advanced Wireless Network Optimization","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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9995999932289124,"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":0.9988999962806702,"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/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.7999731302261353},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.7857452630996704},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.73433518409729},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7141779661178589},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.6488182544708252},{"id":"https://openalex.org/keywords/link-adaptation","display_name":"Link adaptation","score":0.6310493350028992},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6020209193229675},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.5687788724899292},{"id":"https://openalex.org/keywords/symbol-rate","display_name":"Symbol rate","score":0.5251752138137817},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.518142580986023},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.5138121247291565},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.47689202427864075},{"id":"https://openalex.org/keywords/modulation","display_name":"Modulation (music)","score":0.472355455160141},{"id":"https://openalex.org/keywords/pilot-signal","display_name":"Pilot signal","score":0.41382667422294617},{"id":"https://openalex.org/keywords/multiplexing","display_name":"Multiplexing","score":0.4112078547477722},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.39338594675064087},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.3109554648399353},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3022022247314453},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.2322717010974884},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.23068830370903015},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1566966474056244}],"concepts":[{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.7999731302261353},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.7857452630996704},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.73433518409729},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7141779661178589},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.6488182544708252},{"id":"https://openalex.org/C138916503","wikidata":"https://www.wikidata.org/wiki/Q2714551","display_name":"Link adaptation","level":4,"score":0.6310493350028992},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6020209193229675},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.5687788724899292},{"id":"https://openalex.org/C74645175","wikidata":"https://www.wikidata.org/wiki/Q428083","display_name":"Symbol rate","level":4,"score":0.5251752138137817},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.518142580986023},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.5138121247291565},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.47689202427864075},{"id":"https://openalex.org/C123079801","wikidata":"https://www.wikidata.org/wiki/Q750240","display_name":"Modulation (music)","level":2,"score":0.472355455160141},{"id":"https://openalex.org/C197264572","wikidata":"https://www.wikidata.org/wiki/Q2095206","display_name":"Pilot signal","level":3,"score":0.41382667422294617},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.4112078547477722},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.39338594675064087},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3109554648399353},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3022022247314453},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.2322717010974884},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.23068830370903015},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1566966474056244},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C107038049","wikidata":"https://www.wikidata.org/wiki/Q35986","display_name":"Aesthetics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/glocom.2010.5683722","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2010.5683722","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2010 IEEE Global Telecommunications Conference GLOBECOM 2010","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.8100000023841858,"display_name":"Affordable and clean energy"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W1525535255","https://openalex.org/W1607652699","https://openalex.org/W2027991761","https://openalex.org/W2056414370","https://openalex.org/W2100089386","https://openalex.org/W2104057862","https://openalex.org/W2113945550","https://openalex.org/W2132818688","https://openalex.org/W2136814614","https://openalex.org/W2145239982","https://openalex.org/W2151144578","https://openalex.org/W2169965856","https://openalex.org/W2170781947","https://openalex.org/W2534347362","https://openalex.org/W2798333393","https://openalex.org/W4206180546","https://openalex.org/W4249046241","https://openalex.org/W6636220947","https://openalex.org/W6728500289"],"related_works":["https://openalex.org/W2019080502","https://openalex.org/W2167414943","https://openalex.org/W2104057862","https://openalex.org/W176766795","https://openalex.org/W2101338751","https://openalex.org/W2134228930","https://openalex.org/W2101989320","https://openalex.org/W2128596884","https://openalex.org/W2054898736","https://openalex.org/W275418821"],"abstract_inverted_index":{"Adaptive":[0],"modulation":[1,54],"exhibits":[2],"the":[3,16,33,43,66,90,122],"advantage":[4],"of":[5,21],"great":[6],"spectral":[7,103],"efficiency":[8,104],"for":[9],"high":[10],"data":[11],"rate":[12,20],"wireless":[13],"transmission,":[14,78],"where":[15],"transmission":[17],"power":[18,93,108],"and":[19,62,84,94,109],"subchannels":[22],"in":[23,75],"orthogonal":[24],"frequency":[25],"division":[26],"multiplexing":[27],"(OFDM)":[28],"systems":[29],"are":[30],"matched":[31],"to":[32,65,120],"channel":[34,47,71],"state":[35],"information":[36,83],"(CSI).":[37],"CSI":[38],"can":[39],"be":[40],"acquired":[41],"at":[42],"receiver":[44],"by":[45,105],"MMSE":[46],"estimation":[48,72],"based":[49],"on":[50,89],"pilot":[51,79,107,116],"symbol":[52],"assisted":[53],"(PSAM),":[55],"which":[56],"is":[57,112,118],"a":[58],"widely":[59],"used":[60],"technique,":[61],"fed":[63],"back":[64],"transmitter.":[67],"While":[68],"more":[69,76],"accurate":[70],"will":[73],"result":[74],"reliable":[77],"symbols":[80],"don''t":[81],"carry":[82],"they":[85],"impose":[86],"an":[87],"overhead":[88],"system":[91],"consuming":[92],"bandwidth.":[95],"An":[96],"optimal":[97],"adaptive":[98,123],"PSAM":[99],"scheme,":[100],"that":[101],"maximizes":[102],"optimizing":[106],"spacing":[110],"simultaneously":[111],"proposed.":[113],"A":[114],"rectangular":[115],"pattern":[117],"adopted":[119],"simplify":[121],"scheme.":[124]},"counts_by_year":[{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":2}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}