{"id":"https://openalex.org/W2094576794","doi":"https://doi.org/10.1109/vtcfall.2012.6398971","title":"Degrees of Freedom of Signal Alignment for Generalized MIMO Y Channel with General Signal Demands","display_name":"Degrees of Freedom of Signal Alignment for Generalized MIMO Y Channel with General Signal Demands","publication_year":2012,"publication_date":"2012-09-01","ids":{"openalex":"https://openalex.org/W2094576794","doi":"https://doi.org/10.1109/vtcfall.2012.6398971","mag":"2094576794"},"language":"en","primary_location":{"id":"doi:10.1109/vtcfall.2012.6398971","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vtcfall.2012.6398971","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 IEEE Vehicular Technology Conference (VTC Fall)","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/A5084618193","display_name":"Jiaju She","orcid":null},"institutions":[{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Jiaju She","raw_affiliation_strings":["State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, China","institution_ids":["https://openalex.org/I139759216"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086645962","display_name":"Shanzhi Chen","orcid":"https://orcid.org/0000-0002-5409-8168"},"institutions":[{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shanzhi Chen","raw_affiliation_strings":["State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, China","institution_ids":["https://openalex.org/I139759216"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083412798","display_name":"Bo Hu","orcid":"https://orcid.org/0000-0001-6348-010X"},"institutions":[{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Bo Hu","raw_affiliation_strings":["State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, China","institution_ids":["https://openalex.org/I139759216"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078714193","display_name":"Yingmin Wang","orcid":"https://orcid.org/0000-0002-2850-0336"},"institutions":[{"id":"https://openalex.org/I4391767964","display_name":"State Key Laboratory of Wireless Mobile Communications","ror":"https://ror.org/02j79dc41","country_code":null,"type":"facility","lineage":["https://openalex.org/I4210162623","https://openalex.org/I4391767964"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yingmin Wang","raw_affiliation_strings":["State Key Laboratory of Wireless Mobile Communications, China Academy of Telecommunication and Technology, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Wireless Mobile Communications, China Academy of Telecommunication and Technology, China","institution_ids":["https://openalex.org/I4391767964"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031804809","display_name":"Weiguo Ma","orcid":"https://orcid.org/0000-0002-2514-302X"},"institutions":[{"id":"https://openalex.org/I4391767964","display_name":"State Key Laboratory of Wireless Mobile Communications","ror":"https://ror.org/02j79dc41","country_code":null,"type":"facility","lineage":["https://openalex.org/I4210162623","https://openalex.org/I4391767964"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weiguo Ma","raw_affiliation_strings":["State Key Laboratory of Wireless Mobile Communications, China Academy of Telecommunication and Technology, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Wireless Mobile Communications, China Academy of Telecommunication and Technology, China","institution_ids":["https://openalex.org/I4391767964"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100640056","display_name":"Xin Su","orcid":"https://orcid.org/0000-0002-6008-9137"},"institutions":[{"id":"https://openalex.org/I4391767964","display_name":"State Key Laboratory of Wireless Mobile Communications","ror":"https://ror.org/02j79dc41","country_code":null,"type":"facility","lineage":["https://openalex.org/I4210162623","https://openalex.org/I4391767964"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xin Su","raw_affiliation_strings":["State Key Laboratory of Wireless Mobile Communications, China Academy of Telecommunication and Technology, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Wireless Mobile Communications, China Academy of Telecommunication and Technology, China","institution_ids":["https://openalex.org/I4391767964"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5084618193"],"corresponding_institution_ids":["https://openalex.org/I139759216"],"apc_list":null,"apc_paid":null,"fwci":1.4327,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.83434131,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"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/T12791","display_name":"Full-Duplex Wireless Communications","score":0.9983999729156494,"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/T10964","display_name":"Wireless Communication Security Techniques","score":0.9965999722480774,"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/node","display_name":"Node (physics)","score":0.5075513124465942},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.43439874053001404},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4180786907672882},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.4097576439380646},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.4075779318809509},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.39637207984924316},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.24982810020446777},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.21157824993133545},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.19904711842536926},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1551804542541504}],"concepts":[{"id":"https://openalex.org/C62611344","wikidata":"https://www.wikidata.org/wiki/Q1062658","display_name":"Node (physics)","level":2,"score":0.5075513124465942},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.43439874053001404},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4180786907672882},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4097576439380646},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.4075779318809509},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.39637207984924316},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.24982810020446777},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.21157824993133545},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.19904711842536926},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1551804542541504},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/vtcfall.2012.6398971","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vtcfall.2012.6398971","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 IEEE Vehicular Technology Conference (VTC Fall)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","display_name":"Peace, Justice and strong institutions","score":0.6499999761581421}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W1949836348","https://openalex.org/W1979408141","https://openalex.org/W2096231713","https://openalex.org/W2099734648","https://openalex.org/W2112023232","https://openalex.org/W2122488567","https://openalex.org/W2122852565","https://openalex.org/W2132107720","https://openalex.org/W2145595274","https://openalex.org/W2149863032","https://openalex.org/W2152496949","https://openalex.org/W2158562094","https://openalex.org/W2164166019","https://openalex.org/W2164774382","https://openalex.org/W2171681635","https://openalex.org/W2952170112"],"related_works":["https://openalex.org/W2051487156","https://openalex.org/W2073681303","https://openalex.org/W2544423928","https://openalex.org/W2052122378","https://openalex.org/W2053286651","https://openalex.org/W2181743346","https://openalex.org/W2187401768","https://openalex.org/W2181413294","https://openalex.org/W4291895924","https://openalex.org/W2126947002"],"abstract_inverted_index":{"In":[0],"this":[1,171],"paper,":[2],"the":[3,57,118,130,134],"original":[4],"Multiple":[5,7],"Input":[6],"Output":[8],"(MIMO)":[9],"Y":[10,23],"channel":[11,24],"is":[12,52],"extended":[13],"into":[14],"a":[15,20],"more":[16],"generalized":[17,21],"circumstance,":[18],"called":[19],"MIMO":[22],"with":[25,37,48],"general":[26],"signal":[27,162],"demands.":[28],"The":[29],"model":[30],"consists":[31],"of":[32,152,161],"K(K\u22652)":[33],"nodes":[34,116],"each":[35,77],"equipped":[36,47],"M":[38],"<sub":[39,73,83,87,91,100,105,109,125,141,148,177,184,190,194,200],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[40,74,84,88,92,97,101,106,110,126,142,145,149,178,181,185,191,195,201],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">k</sub>":[41,85,89,107,111,127,150,186],"antennas":[42],"and":[43,64,121,166,188],"an":[44],"intermediate":[45],"relay":[46],"N":[49,174],"antennas.":[50],"There":[51],"no":[53],"direct":[54],"link":[55],"between":[56],"nodes.":[58],"Therefore,":[59],"supposing":[60],"that":[61,139],"node":[62,65,78],"i":[63],"j":[66],"(i":[67],"\u2260":[68,94],"j\u2208{1,2,\u00b7\u00b7\u00b7,":[69],"K})":[70],"exchange":[71],"n":[72,99],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">ij</sub>":[75,202],"signals,":[76],"has":[79],"to":[80],"transmit":[81],"m":[82,104,124,147,183],"(m":[86],"=\u03a3":[90],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">i":[93],"k</sub>":[95],"<sup":[96,144,180],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">k</sup>":[98],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">ki</sub>":[102],",":[103],"\u2264M":[108],")":[112,187,197],"signals":[113,128],"for":[114],"other":[115],"in":[117,129,170],"MAC":[119],"phase,":[120,132],"then":[122],"receive":[123],"BC":[131],"via":[133],"relay.":[135],"Then,":[136],"it's":[137],"proved":[138],"\u03a3":[140],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">k=1</sub>":[143,179],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">K</sup>":[146,182],"degrees":[151],"freedom":[153],"(DoF)":[154],"can":[155],"be":[156],"achieved":[157],"by":[158],"making":[159],"use":[160],"space":[163],"alignment":[164],"(SSA)":[165],"interference":[167],"nulling":[168],"beamforming":[169],"model,":[172],"when":[173],"\u2265":[175,198],"1/2(\u03a3":[176],"(M":[189],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">i</sub>":[192],"+M":[193],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">j</sub>":[196],"(N+n":[199],").":[203]},"counts_by_year":[{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
