{"id":"https://openalex.org/W2162959570","doi":"https://doi.org/10.1109/pimrc.2009.5450195","title":"Adaptive subcarrier-and-bit allocation in multiclass multiuser OFDM systems using genetic algorithm","display_name":"Adaptive subcarrier-and-bit allocation in multiclass multiuser OFDM systems using genetic algorithm","publication_year":2009,"publication_date":"2009-09-01","ids":{"openalex":"https://openalex.org/W2162959570","doi":"https://doi.org/10.1109/pimrc.2009.5450195","mag":"2162959570"},"language":"en","primary_location":{"id":"doi:10.1109/pimrc.2009.5450195","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2009.5450195","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio 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/A5100898746","display_name":"Hame Ahmadi","orcid":null},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]},{"id":"https://openalex.org/I3005327000","display_name":"Institute for Infocomm Research","ror":"https://ror.org/053rfa017","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I3005327000","https://openalex.org/I91275662"]},{"id":"https://openalex.org/I115228651","display_name":"Agency for Science, Technology and Research","ror":"https://ror.org/036wvzt09","country_code":"SG","type":"government","lineage":["https://openalex.org/I115228651"]}],"countries":["SG"],"is_corresponding":true,"raw_author_name":"Hame Ahmadi","raw_affiliation_strings":["Department of Electrical and Computer Engineering, National University of Singapore, Singapore","Institute of Infocomm Research, Agency for Science, Technology and Research, Singapore"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, National University of Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]},{"raw_affiliation_string":"Institute of Infocomm Research, Agency for Science, Technology and Research, Singapore","institution_ids":["https://openalex.org/I3005327000","https://openalex.org/I115228651"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5111955028","display_name":"Yong Huat Chew","orcid":null},"institutions":[{"id":"https://openalex.org/I115228651","display_name":"Agency for Science, Technology and Research","ror":"https://ror.org/036wvzt09","country_code":"SG","type":"government","lineage":["https://openalex.org/I115228651"]},{"id":"https://openalex.org/I3005327000","display_name":"Institute for Infocomm Research","ror":"https://ror.org/053rfa017","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I3005327000","https://openalex.org/I91275662"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Yong Huat Chew","raw_affiliation_strings":["Institute of Infocomm Research, Agency for Science, Technology and Research, Singapore"],"affiliations":[{"raw_affiliation_string":"Institute of Infocomm Research, Agency for Science, Technology and Research, Singapore","institution_ids":["https://openalex.org/I3005327000","https://openalex.org/I115228651"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5100898746"],"corresponding_institution_ids":["https://openalex.org/I115228651","https://openalex.org/I165932596","https://openalex.org/I3005327000"],"apc_list":null,"apc_paid":null,"fwci":1.1963,"has_fulltext":false,"cited_by_count":15,"citation_normalized_percentile":{"value":0.8178385,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"1883","last_page":"1887"},"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9986000061035156,"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":0.9969000220298767,"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/subcarrier","display_name":"Subcarrier","score":0.8877688050270081},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7015637159347534},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.6614471673965454},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.541276216506958},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5259763598442078},{"id":"https://openalex.org/keywords/genetic-algorithm","display_name":"Genetic algorithm","score":0.48062390089035034},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.42663252353668213},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.38068968057632446},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.18087419867515564},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1444934606552124},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.10651424527168274},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.06430533528327942}],"concepts":[{"id":"https://openalex.org/C198329298","wikidata":"https://www.wikidata.org/wiki/Q586358","display_name":"Subcarrier","level":4,"score":0.8877688050270081},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7015637159347534},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.6614471673965454},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.541276216506958},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5259763598442078},{"id":"https://openalex.org/C8880873","wikidata":"https://www.wikidata.org/wiki/Q187787","display_name":"Genetic algorithm","level":2,"score":0.48062390089035034},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.42663252353668213},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.38068968057632446},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.18087419867515564},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1444934606552124},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.10651424527168274},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.06430533528327942},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/pimrc.2009.5450195","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2009.5450195","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.800000011920929,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W1942331495","https://openalex.org/W1979356488","https://openalex.org/W2041574201","https://openalex.org/W2097571405","https://openalex.org/W2133236296","https://openalex.org/W2137967754","https://openalex.org/W2143374936","https://openalex.org/W2148684526","https://openalex.org/W2151584853","https://openalex.org/W2547785268","https://openalex.org/W6640350387","https://openalex.org/W6674896183","https://openalex.org/W6680692542"],"related_works":["https://openalex.org/W1501039677","https://openalex.org/W3161598161","https://openalex.org/W2306672848","https://openalex.org/W2128552819","https://openalex.org/W2166250390","https://openalex.org/W2055131418","https://openalex.org/W4291701075","https://openalex.org/W3117207195","https://openalex.org/W3118536199","https://openalex.org/W2029275898"],"abstract_inverted_index":{"Subcarrier":[0],"and":[1,34,51,96,132],"bit":[2,97,148],"allocation":[3,98],"has":[4,128],"been":[5],"extensively":[6],"investigated":[7],"in":[8,79],"the":[9,13,23,60,69,74,85,88,94,120,136,146],"literature":[10],"to":[11,53,83,113],"improve":[12],"spectral":[14],"efficiency":[15],"of":[16,22,36,87,119,153],"multiuser":[17],"OFDM":[18],"systems.":[19],"However,":[20],"most":[21],"earlier":[24],"studies":[25],"using":[26],"genetic":[27],"algorithms":[28],"(GA)":[29],"focused":[30],"on":[31,102],"single-class":[32],"service":[33],"users":[35,56],"best":[37],"effort":[38],"data":[39],"rate.":[40],"In":[41],"this":[42],"paper,":[43],"a":[44],"novel":[45],"GA":[46,105],"method":[47],"which":[48,65],"allocates":[49],"subcarriers":[50],"bits":[52],"rate":[54,131,149],"guaranteed":[55],"is":[57],"presented.":[58],"As":[59],"reproduction":[61],"process":[62],"generates":[63],"chromosomes":[64],"do":[66],"not":[67],"fulfill":[68],"constraints,":[70],"our":[71,103,126],"algorithm":[72,115,127],"integrates":[73],"invisible":[75],"walls":[76],"technique":[77],"used":[78],"Particle":[80],"Swam":[81],"Optimization":[82],"retain":[84],"diversity":[86],"chromosomes.":[89],"Simulation":[90],"results":[91],"show":[92],"that":[93,125,135],"subcarrier":[95],"strategy":[99],"computed":[100],"based":[101],"proposed":[104],"can":[106],"achieve":[107],"lower":[108,133],"total":[109],"power":[110],"consumption":[111],"compare":[112],"an":[114],"modified":[116],"from":[117],"one":[118],"pervious":[121],"works.":[122],"This":[123],"verifies":[124],"better":[129],"convergence":[130],"risk":[134],"solution":[137],"will":[138],"be":[139],"trapped":[140],"at":[141],"local":[142],"optimums,":[143],"while":[144],"guarantees":[145],"required":[147],"for":[150],"each":[151],"class":[152],"service.":[154]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":4},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
