{"id":"https://openalex.org/W2141462423","doi":"https://doi.org/10.1109/pimrc.2009.5450356","title":"Joint cooperative diversity and scheduling with distributed transmit beamforming in OFDMA relay system","display_name":"Joint cooperative diversity and scheduling with distributed transmit beamforming in OFDMA relay system","publication_year":2009,"publication_date":"2009-09-01","ids":{"openalex":"https://openalex.org/W2141462423","doi":"https://doi.org/10.1109/pimrc.2009.5450356","mag":"2141462423"},"language":"en","primary_location":{"id":"doi:10.1109/pimrc.2009.5450356","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2009.5450356","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/A5015684730","display_name":"Salma Ait Fares","orcid":null},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Salma Ait Fares","raw_affiliation_strings":["Department of Electrical and Communication Engineering, University of Tohoku, Sendai, Japan","Depart. of Electrical and Communication Engineering, Tohoku University, 6-6-05, Aza-Aoba, Aramaki, Aoba-ku, 980-8579, Sendai, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Communication Engineering, University of Tohoku, Sendai, Japan","institution_ids":["https://openalex.org/I201537933"]},{"raw_affiliation_string":"Depart. of Electrical and Communication Engineering, Tohoku University, 6-6-05, Aza-Aoba, Aramaki, Aoba-ku, 980-8579, Sendai, Japan","institution_ids":["https://openalex.org/I201537933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5011281064","display_name":"Fumiyuki Adachi","orcid":"https://orcid.org/0000-0002-5416-0718"},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Fumiyuki Adachi","raw_affiliation_strings":["Department of Electrical and Communication Engineering, University of Tohoku, Sendai, Japan","Depart. of Electrical and Communication Engineering, Tohoku University, 6-6-05, Aza-Aoba, Aramaki, Aoba-ku, 980-8579, Sendai, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Communication Engineering, University of Tohoku, Sendai, Japan","institution_ids":["https://openalex.org/I201537933"]},{"raw_affiliation_string":"Depart. of Electrical and Communication Engineering, Tohoku University, 6-6-05, Aza-Aoba, Aramaki, Aoba-ku, 980-8579, Sendai, Japan","institution_ids":["https://openalex.org/I201537933"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5015334727","display_name":"Eisuke Kudoh","orcid":null},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Eisuke Kudoh","raw_affiliation_strings":["Department of Electrical and Communication Engineering, University of Tohoku, Sendai, Japan","Depart. of Electrical and Communication Engineering, Tohoku University, 6-6-05, Aza-Aoba, Aramaki, Aoba-ku, 980-8579, Sendai, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Communication Engineering, University of Tohoku, Sendai, Japan","institution_ids":["https://openalex.org/I201537933"]},{"raw_affiliation_string":"Depart. of Electrical and Communication Engineering, Tohoku University, 6-6-05, Aza-Aoba, Aramaki, Aoba-ku, 980-8579, Sendai, Japan","institution_ids":["https://openalex.org/I201537933"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5015684730"],"corresponding_institution_ids":["https://openalex.org/I201537933"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.19764128,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"e92 b","issue":null,"first_page":"1332","last_page":"1336"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","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"}},"topics":[{"id":"https://openalex.org/T10796","display_name":"Cooperative Communication and Network Coding","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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.988099992275238,"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/T12791","display_name":"Full-Duplex Wireless Communications","score":0.9854000210762024,"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":0.7370321154594421},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.7306143045425415},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.7122659683227539},{"id":"https://openalex.org/keywords/relay","display_name":"Relay","score":0.7083563804626465},{"id":"https://openalex.org/keywords/scheduling","display_name":"Scheduling (production processes)","score":0.6628819108009338},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.6556439399719238},{"id":"https://openalex.org/keywords/throughput","display_name":"Throughput","score":0.5328942537307739},{"id":"https://openalex.org/keywords/cooperative-diversity","display_name":"Cooperative diversity","score":0.47212037444114685},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.44753551483154297},{"id":"https://openalex.org/keywords/diversity-gain","display_name":"Diversity gain","score":0.4282950460910797},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.4187377691268921},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.3849555253982544},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.21332597732543945},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.14979901909828186},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.05333629250526428}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7370321154594421},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.7306143045425415},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.7122659683227539},{"id":"https://openalex.org/C2778156585","wikidata":"https://www.wikidata.org/wiki/Q174053","display_name":"Relay","level":3,"score":0.7083563804626465},{"id":"https://openalex.org/C206729178","wikidata":"https://www.wikidata.org/wiki/Q2271896","display_name":"Scheduling (production processes)","level":2,"score":0.6628819108009338},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.6556439399719238},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.5328942537307739},{"id":"https://openalex.org/C6832461","wikidata":"https://www.wikidata.org/wiki/Q5167914","display_name":"Cooperative diversity","level":4,"score":0.47212037444114685},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.44753551483154297},{"id":"https://openalex.org/C164785522","wikidata":"https://www.wikidata.org/wiki/Q5283966","display_name":"Diversity gain","level":4,"score":0.4282950460910797},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.4187377691268921},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.3849555253982544},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.21332597732543945},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.14979901909828186},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.05333629250526428},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C21547014","wikidata":"https://www.wikidata.org/wiki/Q1423657","display_name":"Operations management","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/pimrc.2009.5450356","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2009.5450356","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"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.410.4441","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.410.4441","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.mobile.ecei.tohoku.ac.jp/paper/pdf/inter_2009/20_in_2009_aitfares.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W1969019313","https://openalex.org/W2016804172","https://openalex.org/W2026898705","https://openalex.org/W2108623456","https://openalex.org/W2109714708","https://openalex.org/W2112691290","https://openalex.org/W2130485516","https://openalex.org/W2146689747","https://openalex.org/W2152121970"],"related_works":["https://openalex.org/W2787091472","https://openalex.org/W2131665415","https://openalex.org/W2088352174","https://openalex.org/W2561242965","https://openalex.org/W2363618716","https://openalex.org/W2463175948","https://openalex.org/W2113624196","https://openalex.org/W2006290459","https://openalex.org/W2353594815","https://openalex.org/W2465954300"],"abstract_inverted_index":{"Cooperative":[0],"relay":[1,12,90],"diversity":[2,86,181],"and":[3,32,82,103,154],"adaptive":[4],"scheduling":[5],"for":[6,59],"active":[7],"source/destination":[8],"pairs":[9],"in":[10,36,122],"OFDMA-based":[11],"network":[13],"can":[14,131],"significantly":[15,173],"improve":[16,105],"the":[17,30,54,57,89,94,100,106,129,143,156,165,169,176],"reliability":[18],"of":[19],"data":[20],"transmission":[21],"over":[22],"wireless":[23],"fading":[24,38],"channels":[25],"as":[26,28],"well":[27],"enhance":[29,93],"aggregate":[31],"per-link":[33,45,157],"throughputs.":[34],"However,":[35],"slow-varying":[37],"channel,":[39],"this":[40,75],"technique":[41],"suffers":[42],"from":[43,97],"low":[44],"throughput":[46,108,158],"since":[47],"some":[48],"users":[49,138,149],"with":[50,113,175],"highest":[51,153],"SNR":[52,124,151],"at":[53,88,125],"destination":[55,101],"access":[56,141],"channel":[58,71,144],"a":[60],"long":[61],"period":[62],"while":[63],"others":[64],"will":[65],"have":[66,140],"to":[67,92,99,104,137,139,142,148],"wait":[68],"until":[69],"their":[70],"condition":[72],"improves.":[73],"In":[74],"paper":[76],"we":[77],"propose":[78],"joint":[79],"transmit":[80,95,111],"beamforming":[81,112],"fixed":[83],"cyclic":[84],"delay":[85],"(CDD)":[87],"nodes":[91],"signals":[96],"relays":[98],"link":[102],"perlink":[107],"performance.":[109],"Combining":[110],"CDD":[114],"approach":[115],"creates":[116],"more":[117,135],"fluctuation":[118],"among":[119],"subcarriers":[120,147],"resulting":[121],"time-varying":[123],"each":[126],"destination.":[127],"Therefore,":[128],"scheduler":[130],"now":[132],"successfully":[133],"provide":[134],"chance":[136],"by":[145],"allocating":[146],"whose":[150],"are":[152],"thus":[155],"is":[159],"enhanced.":[160],"Simulation":[161],"results":[162],"show":[163],"that":[164],"system":[166],"performance":[167],"using":[168],"proposed":[170,179],"method":[171],"increases":[172],"compared":[174],"other":[177],"previously":[178],"cooperative":[180],"techniques.":[182]},"counts_by_year":[{"year":2016,"cited_by_count":1}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}