{"id":"https://openalex.org/W2141916597","doi":"https://doi.org/10.1109/mwc.2012.6393526","title":"OFDMA with variable tone spaces","display_name":"OFDMA with variable tone spaces","publication_year":2012,"publication_date":"2012-12-01","ids":{"openalex":"https://openalex.org/W2141916597","doi":"https://doi.org/10.1109/mwc.2012.6393526","mag":"2141916597"},"language":"en","primary_location":{"id":"doi:10.1109/mwc.2012.6393526","is_oa":false,"landing_page_url":"https://doi.org/10.1109/mwc.2012.6393526","pdf_url":null,"source":{"id":"https://openalex.org/S146764194","display_name":"IEEE Wireless Communications","issn_l":"1536-1284","issn":["1536-1284","1558-0687"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Wireless Communications","raw_type":"journal-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/A5002892020","display_name":"Sungmook Lim","orcid":"https://orcid.org/0000-0002-6850-4403"},"institutions":[{"id":"https://openalex.org/I193775966","display_name":"Yonsei University","ror":"https://ror.org/01wjejq96","country_code":"KR","type":"education","lineage":["https://openalex.org/I193775966"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Sungmook Lim","raw_affiliation_strings":["YONSEI UNIVERSITY, South Korea","Yonsei university"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"YONSEI UNIVERSITY, South Korea","institution_ids":["https://openalex.org/I193775966"]},{"raw_affiliation_string":"Yonsei university","institution_ids":["https://openalex.org/I193775966"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047733265","display_name":"Gosan Noh","orcid":"https://orcid.org/0000-0001-6686-212X"},"institutions":[{"id":"https://openalex.org/I193775966","display_name":"Yonsei University","ror":"https://ror.org/01wjejq96","country_code":"KR","type":"education","lineage":["https://openalex.org/I193775966"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Gosan Noh","raw_affiliation_strings":["YONSEI UNIVERSITY, South Korea","Yonsei university"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"YONSEI UNIVERSITY, South Korea","institution_ids":["https://openalex.org/I193775966"]},{"raw_affiliation_string":"Yonsei university","institution_ids":["https://openalex.org/I193775966"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085676130","display_name":"Jihaeng Heo","orcid":null},"institutions":[{"id":"https://openalex.org/I193775966","display_name":"Yonsei University","ror":"https://ror.org/01wjejq96","country_code":"KR","type":"education","lineage":["https://openalex.org/I193775966"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jihaeng Heo","raw_affiliation_strings":["YONSEI UNIVERSITY, South Korea","Yonsei university"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"YONSEI UNIVERSITY, South Korea","institution_ids":["https://openalex.org/I193775966"]},{"raw_affiliation_string":"Yonsei university","institution_ids":["https://openalex.org/I193775966"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101753643","display_name":"Hyung-Jong Kim","orcid":"https://orcid.org/0000-0002-3712-909X"},"institutions":[{"id":"https://openalex.org/I193775966","display_name":"Yonsei University","ror":"https://ror.org/01wjejq96","country_code":"KR","type":"education","lineage":["https://openalex.org/I193775966"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Hyungjong Kim","raw_affiliation_strings":["YONSEI UNIVERSITY, South Korea","Yonsei university"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"YONSEI UNIVERSITY, South Korea","institution_ids":["https://openalex.org/I193775966"]},{"raw_affiliation_string":"Yonsei university","institution_ids":["https://openalex.org/I193775966"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5043918946","display_name":"Daesik Hong","orcid":"https://orcid.org/0000-0002-4694-2963"},"institutions":[{"id":"https://openalex.org/I193775966","display_name":"Yonsei University","ror":"https://ror.org/01wjejq96","country_code":"KR","type":"education","lineage":["https://openalex.org/I193775966"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Daesik Hong","raw_affiliation_strings":["YONSEI UNIVERSITY, South Korea","Yonsei university"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"YONSEI UNIVERSITY, South Korea","institution_ids":["https://openalex.org/I193775966"]},{"raw_affiliation_string":"Yonsei university","institution_ids":["https://openalex.org/I193775966"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I193775966"],"apc_list":null,"apc_paid":null,"fwci":0.4996,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.71114201,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"19","issue":"6","first_page":"113","last_page":"120"},"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":1.0,"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/T12146","display_name":"Power Line Communications and Noise","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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7980569005012512},{"id":"https://openalex.org/keywords/frequency-division-multiple-access","display_name":"Frequency-division multiple access","score":0.6548535227775574},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiple-access","display_name":"Orthogonal frequency-division multiple access","score":0.6183484196662903},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5858253836631775},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.5422206521034241},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.5340983271598816},{"id":"https://openalex.org/keywords/channel-allocation-schemes","display_name":"Channel allocation schemes","score":0.5117875933647156},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.472557008266449},{"id":"https://openalex.org/keywords/intersymbol-interference","display_name":"Intersymbol interference","score":0.42790350317955017},{"id":"https://openalex.org/keywords/channel-capacity","display_name":"Channel capacity","score":0.41944241523742676},{"id":"https://openalex.org/keywords/pilot-signal","display_name":"Pilot signal","score":0.4123291075229645},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3784342110157013},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3560018241405487},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.34114253520965576},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.09586337208747864}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7980569005012512},{"id":"https://openalex.org/C2776208322","wikidata":"https://www.wikidata.org/wiki/Q844071","display_name":"Frequency-division multiple access","level":4,"score":0.6548535227775574},{"id":"https://openalex.org/C2775907427","wikidata":"https://www.wikidata.org/wiki/Q2697649","display_name":"Orthogonal frequency-division multiple access","level":4,"score":0.6183484196662903},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5858253836631775},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.5422206521034241},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.5340983271598816},{"id":"https://openalex.org/C114237682","wikidata":"https://www.wikidata.org/wiki/Q5072483","display_name":"Channel allocation schemes","level":3,"score":0.5117875933647156},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.472557008266449},{"id":"https://openalex.org/C97812054","wikidata":"https://www.wikidata.org/wiki/Q2166055","display_name":"Intersymbol interference","level":3,"score":0.42790350317955017},{"id":"https://openalex.org/C97744766","wikidata":"https://www.wikidata.org/wiki/Q870845","display_name":"Channel capacity","level":3,"score":0.41944241523742676},{"id":"https://openalex.org/C197264572","wikidata":"https://www.wikidata.org/wiki/Q2095206","display_name":"Pilot signal","level":3,"score":0.4123291075229645},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3784342110157013},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3560018241405487},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.34114253520965576},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.09586337208747864}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/mwc.2012.6393526","is_oa":false,"landing_page_url":"https://doi.org/10.1109/mwc.2012.6393526","pdf_url":null,"source":{"id":"https://openalex.org/S146764194","display_name":"IEEE Wireless Communications","issn_l":"1536-1284","issn":["1536-1284","1558-0687"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Wireless Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.4000000059604645,"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":4,"referenced_works":["https://openalex.org/W2065743043","https://openalex.org/W2098432861","https://openalex.org/W2110774823","https://openalex.org/W2145819226"],"related_works":["https://openalex.org/W2025189274","https://openalex.org/W1585503616","https://openalex.org/W2092365485","https://openalex.org/W1543564974","https://openalex.org/W2004574319","https://openalex.org/W2060870071","https://openalex.org/W2224554958","https://openalex.org/W2169305728","https://openalex.org/W2078013232","https://openalex.org/W1654541684"],"abstract_inverted_index":{"Next":[0],"generation":[1],"wireless":[2],"networks":[3],"such":[4],"as":[5,111],"3GPP":[6],"LTE-A":[7],"demand":[8],"enhanced":[9],"system":[10,61,105,116,168,203],"capacity":[11,62,95],"for":[12,56,124],"high-quality":[13],"multimedia":[14],"services.":[15],"Carrier":[16],"aggregation":[17],"based":[18],"on":[19,35],"OFDMA":[20,80,104],"has":[21],"been":[22],"introduced":[23],"to":[24,114,140,151,160,176,192],"achieve":[25],"this.":[26],"In":[27,97,179],"CA,":[28],"each":[29,41,57,125,183],"component":[30],"carrier":[31],"can":[32],"be":[33],"located":[34],"a":[36,47,67,102,141,161],"different":[37,48,53,73],"frequency":[38],"band,":[39],"and":[40,199],"user":[42,126,184],"utilizing":[43],"it":[44],"moves":[45],"at":[46],"speed.":[49],"This":[50],"results":[51],"in":[52,63,94,132],"channel":[54,74,91,130],"characteristics":[55,75,131],"user.":[58],"Enhancing":[59],"the":[60,120,145,167,170,180,187,194],"this":[64,98],"environment":[65],"requires":[66],"multiple":[68],"access":[69],"scheme":[70],"that":[71],"considers":[72],"among":[76],"users.":[77],"However,":[78],"conventional":[79],"using":[81],"fixed":[82],"tone":[83,108,121,147,172,189],"space":[84,122,148,173,190],"(called":[85],"OFDMA-FTS)":[86],"does":[87],"not":[88],"consider":[89],"user-specific":[90],"characteristics,":[92],"resulting":[93],"degradation.":[96],"article,":[99],"we":[100],"propose":[101],"new":[103],"with":[106],"variable":[107],"spaces":[109],"(OFDMA-VTS)":[110],"an":[112],"approach":[113],"enhance":[115],"capacity.":[117,204],"OFDMA-VTS":[118],"selects":[119,186],"suitable":[123],"by":[127],"considering":[128],"userspecific":[129],"CA.":[133],"When":[134],"intersymbol":[135],"interference":[136,158,196],"is":[137,149,174],"dominant":[138],"due":[139,159],"long":[142],"delay":[143],"spread,":[144],"small":[146],"selected":[150,175],"eliminate":[152],"severe":[153],"ISI.":[154],"Conversely,":[155],"when":[156],"intercarrier":[157],"large":[162,171],"Doppler":[163],"spread":[164],"severely":[165],"degrades":[166],"performance,":[169],"compensate":[177],"ICI.":[178],"proposed":[181],"OFDMA-VTS,":[182],"adaptively":[185],"optimal":[188],"needed":[191],"minimize":[193],"total":[195],"of":[197],"ISI":[198],"ICI,":[200],"therefore":[201],"enhancing":[202]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-06-26T08:34:08.712188","created_date":"2025-10-10T00:00:00"}
