{"id":"https://openalex.org/W2181894953","doi":"https://doi.org/10.1109/pimrc.2015.7343407","title":"Rank-two beamforming for QoS-DiffServ multi-group multicast system based on Alamouti space-time coding","display_name":"Rank-two beamforming for QoS-DiffServ multi-group multicast system based on Alamouti space-time coding","publication_year":2015,"publication_date":"2015-08-01","ids":{"openalex":"https://openalex.org/W2181894953","doi":"https://doi.org/10.1109/pimrc.2015.7343407","mag":"2181894953"},"language":"en","primary_location":{"id":"doi:10.1109/pimrc.2015.7343407","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2015.7343407","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","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/A5100353035","display_name":"Zilong Zhang","orcid":"https://orcid.org/0000-0002-9183-649X"},"institutions":[{"id":"https://openalex.org/I126520041","display_name":"University of Science and Technology of China","ror":"https://ror.org/04c4dkn09","country_code":"CN","type":"education","lineage":["https://openalex.org/I126520041","https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Zilong Zhang","raw_affiliation_strings":["Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China, Hefei, China"],"affiliations":[{"raw_affiliation_string":"Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China, Hefei, China","institution_ids":["https://openalex.org/I126520041"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044958541","display_name":"Xiaodong Xu","orcid":"https://orcid.org/0000-0003-1953-0450"},"institutions":[{"id":"https://openalex.org/I126520041","display_name":"University of Science and Technology of China","ror":"https://ror.org/04c4dkn09","country_code":"CN","type":"education","lineage":["https://openalex.org/I126520041","https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaodong Xu","raw_affiliation_strings":["Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China, Hefei, China"],"affiliations":[{"raw_affiliation_string":"Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China, Hefei, China","institution_ids":["https://openalex.org/I126520041"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101456053","display_name":"Yanan Wu","orcid":"https://orcid.org/0000-0001-8046-884X"},"institutions":[{"id":"https://openalex.org/I4210090357","display_name":"Nanjing Forest Police College","ror":"https://ror.org/00adax290","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210090357"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yanan Wu","raw_affiliation_strings":["Department of Detection, Nanjing Forest Police College, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Department of Detection, Nanjing Forest Police College, Nanjing, China","institution_ids":["https://openalex.org/I4210090357"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5100353035"],"corresponding_institution_ids":["https://openalex.org/I126520041"],"apc_list":null,"apc_paid":null,"fwci":0.3946,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.67441463,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"37","issue":null,"first_page":"803","last_page":"808"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems 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/T10148","display_name":"Advanced MIMO Systems 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/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9998999834060669,"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/T10575","display_name":"Wireless Communication Networks Research","score":0.9995999932289124,"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/multicast","display_name":"Multicast","score":0.8152007460594177},{"id":"https://openalex.org/keywords/quality-of-service","display_name":"Quality of service","score":0.7546521425247192},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.735585629940033},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.5740855932235718},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.4707406461238861},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.39344102144241333},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.14233431220054626},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.10051441192626953}],"concepts":[{"id":"https://openalex.org/C32295351","wikidata":"https://www.wikidata.org/wiki/Q899288","display_name":"Multicast","level":2,"score":0.8152007460594177},{"id":"https://openalex.org/C5119721","wikidata":"https://www.wikidata.org/wiki/Q220501","display_name":"Quality of service","level":2,"score":0.7546521425247192},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.735585629940033},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.5740855932235718},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.4707406461238861},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.39344102144241333},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.14233431220054626},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.10051441192626953}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/pimrc.2015.7343407","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2015.7343407","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.44999998807907104,"id":"https://metadata.un.org/sdg/9","display_name":"Industry, innovation and infrastructure"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":24,"referenced_works":["https://openalex.org/W138776091","https://openalex.org/W312813459","https://openalex.org/W1490674876","https://openalex.org/W1509805685","https://openalex.org/W1642407538","https://openalex.org/W2052898460","https://openalex.org/W2071707134","https://openalex.org/W2088081804","https://openalex.org/W2096093766","https://openalex.org/W2110851871","https://openalex.org/W2122744491","https://openalex.org/W2129347840","https://openalex.org/W2144578971","https://openalex.org/W2151268585","https://openalex.org/W2156639545","https://openalex.org/W2161188102","https://openalex.org/W2164402548","https://openalex.org/W2169363112","https://openalex.org/W2478503558","https://openalex.org/W4213316265","https://openalex.org/W6605624582","https://openalex.org/W6610930706","https://openalex.org/W6683109497","https://openalex.org/W6982601198"],"related_works":["https://openalex.org/W2033488476","https://openalex.org/W2131092765","https://openalex.org/W2277662012","https://openalex.org/W1589992863","https://openalex.org/W4377015086","https://openalex.org/W1617457131","https://openalex.org/W2369090769","https://openalex.org/W2997509936","https://openalex.org/W2167268310","https://openalex.org/W1942969496"],"abstract_inverted_index":{"For":[0],"wireless":[1],"multicast":[2,45],"channels,":[3],"it":[4],"is":[5,69],"prospective":[6],"to":[7,27,94,115],"provide":[8,168],"quality":[9],"of":[10,49,83,152],"service":[11],"(QoS)":[12],"differentiation":[13],"at":[14],"physical":[15],"layer.":[16],"In":[17,42],"this":[18],"paper,":[19],"we":[20,88],"propose":[21],"a":[22,72,95,125,131],"rank-two":[23,123,164],"transmit":[24],"beamforming":[25,165],"mechanism":[26],"support":[28],"differentiated":[29],"services":[30],"(Diffserv)":[31],"in":[32],"multi-group":[33,44],"multicasting":[34],"scenarios":[35],"based":[36,128],"on":[37],"Alamouti":[38],"space-time":[39],"coding":[40],"(ASTC).":[41],"QoS-Diffserv":[43,67],"systems,":[46],"two":[47],"kinds":[48],"users":[50,54,60],"exist,":[51],"named":[52],"high-priority":[53],"with":[55,61],"guaranteed":[56],"QoS":[57,174],"and":[58,130,146,149],"low-priority":[59],"limited":[62],"QoS.":[63],"First":[64],"the":[65,81,91,116,122,139,144,153,162],"original":[66,117],"issue":[68],"formulated":[70],"as":[71,138],"non-convex":[73],"quadratically":[74],"constrained":[75],"quadratic":[76],"programming":[77,98],"(QCQP)":[78],"program.":[79],"With":[80],"aid":[82],"semi-definite":[84,97],"relaxation":[85],"(SDR)":[86],"technique,":[87],"then":[89],"relax":[90],"QCQP":[92,145],"problem":[93,118,134],"convex":[96,108],"(SDP)":[99],"problem,":[100],"which":[101,119],"can":[102],"be":[103],"easily":[104],"handled":[105],"by":[106],"basic":[107],"optimization":[109],"tools.":[110],"To":[111],"obtain":[112],"approximate":[113],"solutions":[114],"should":[120],"meet":[121],"constraints,":[124],"Gaussian":[126],"randomization":[127],"process":[129],"power":[132,171],"control":[133],"are":[135,156],"employed":[136],"together":[137],"last":[140],"step.":[141],"Relationship":[142],"between":[143],"SDP":[147],"problems":[148],"computational":[150],"complexity":[151],"proposed":[154,163],"algorithm":[155,166],"analysed.":[157],"Simulation":[158],"results":[159],"demonstrate":[160],"that":[161],"could":[167],"near-optimal":[169],"transmission":[170],"under":[172],"different":[173],"constraints.":[175]},"counts_by_year":[{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
