{"id":"https://openalex.org/W2138632016","doi":"https://doi.org/10.1109/tit.2012.2185483","title":"Degrees of Freedom Regions of Two-User MIMO Z and Full Interference Channels: The Benefit of Reconfigurable Antennas","display_name":"Degrees of Freedom Regions of Two-User MIMO Z and Full Interference Channels: The Benefit of Reconfigurable Antennas","publication_year":2012,"publication_date":"2012-01-31","ids":{"openalex":"https://openalex.org/W2138632016","doi":"https://doi.org/10.1109/tit.2012.2185483","mag":"2138632016"},"language":"en","primary_location":{"id":"doi:10.1109/tit.2012.2185483","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tit.2012.2185483","pdf_url":null,"source":{"id":"https://openalex.org/S4502562","display_name":"IEEE Transactions on Information Theory","issn_l":"0018-9448","issn":["0018-9448","1557-9654"],"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 Transactions on Information Theory","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/A5111809383","display_name":"Lei Ke","orcid":null},"institutions":[{"id":"https://openalex.org/I4210087596","display_name":"Qualcomm (United States)","ror":"https://ror.org/002zrf773","country_code":"US","type":"company","lineage":["https://openalex.org/I4210087596"]},{"id":"https://openalex.org/I173911158","display_name":"Iowa State University","ror":"https://ror.org/04rswrd78","country_code":"US","type":"education","lineage":["https://openalex.org/I173911158"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Lei Ke","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Iowa State University, Ames, IA, USA","Qualcomm, Inc., San Diego, CA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Iowa State University, Ames, IA, USA","institution_ids":["https://openalex.org/I173911158"]},{"raw_affiliation_string":"Qualcomm, Inc., San Diego, CA, USA","institution_ids":["https://openalex.org/I4210087596"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5009345756","display_name":"Zhengdao Wang","orcid":"https://orcid.org/0000-0003-2491-7879"},"institutions":[{"id":"https://openalex.org/I173911158","display_name":"Iowa State University","ror":"https://ror.org/04rswrd78","country_code":"US","type":"education","lineage":["https://openalex.org/I173911158"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Zhengdao Wang","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Iowa State University, Ames, IA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Iowa State University, Ames, IA, USA","institution_ids":["https://openalex.org/I173911158"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5111809383"],"corresponding_institution_ids":["https://openalex.org/I173911158","https://openalex.org/I4210087596"],"apc_list":null,"apc_paid":null,"fwci":3.2367,"has_fulltext":false,"cited_by_count":24,"citation_normalized_percentile":{"value":0.92595629,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"58","issue":"6","first_page":"3766","last_page":"3779"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9998000264167786,"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":0.9998000264167786,"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":0.9995999932289124,"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/T10069","display_name":"Antenna Design and Analysis","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/transmitter","display_name":"Transmitter","score":0.7833372354507446},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.7545757293701172},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7447652816772461},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.6712260246276855},{"id":"https://openalex.org/keywords/degrees-of-freedom","display_name":"Degrees of freedom (physics and chemistry)","score":0.6222161054611206},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.5970280170440674},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.5698968172073364},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.556201159954071},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.5243822932243347},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5079541802406311},{"id":"https://openalex.org/keywords/coding","display_name":"Coding (social sciences)","score":0.4389592409133911},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.40392157435417175},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3934778869152069},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.3501299023628235},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.32215455174446106},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.316839337348938},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.16122311353683472},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.1589692234992981},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.07103419303894043}],"concepts":[{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.7833372354507446},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.7545757293701172},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7447652816772461},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.6712260246276855},{"id":"https://openalex.org/C208081375","wikidata":"https://www.wikidata.org/wiki/Q274502","display_name":"Degrees of freedom (physics and chemistry)","level":2,"score":0.6222161054611206},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.5970280170440674},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.5698968172073364},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.556201159954071},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.5243822932243347},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5079541802406311},{"id":"https://openalex.org/C179518139","wikidata":"https://www.wikidata.org/wiki/Q5140297","display_name":"Coding (social sciences)","level":2,"score":0.4389592409133911},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.40392157435417175},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3934778869152069},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.3501299023628235},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.32215455174446106},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.316839337348938},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.16122311353683472},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.1589692234992981},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.07103419303894043},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.0},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1109/tit.2012.2185483","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tit.2012.2185483","pdf_url":null,"source":{"id":"https://openalex.org/S4502562","display_name":"IEEE Transactions on Information Theory","issn_l":"0018-9448","issn":["0018-9448","1557-9654"],"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 Transactions on Information Theory","raw_type":"journal-article"},{"id":"pmh:oai:lib.dr.iastate.edu:ece_pubs-1282","is_oa":false,"landing_page_url":"https://lib.dr.iastate.edu/ece_pubs/279","pdf_url":null,"source":{"id":"https://openalex.org/S4377196104","display_name":"Iowa State University Digital Repository (Iowa State University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I173911158","host_organization_name":"Iowa State University","host_organization_lineage":["https://openalex.org/I173911158"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Electrical and Computer Engineering Publications","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.756.1903","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.756.1903","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://arxiv.org/pdf/1011.2196.pdf","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.763.549","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.763.549","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://arxiv.org/pdf/1003.3507.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.8500000238418579,"id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":30,"referenced_works":["https://openalex.org/W159643267","https://openalex.org/W1965689631","https://openalex.org/W1979408141","https://openalex.org/W1984264355","https://openalex.org/W2029920391","https://openalex.org/W2047814558","https://openalex.org/W2052530379","https://openalex.org/W2062610219","https://openalex.org/W2087258384","https://openalex.org/W2097937755","https://openalex.org/W2101792326","https://openalex.org/W2106549261","https://openalex.org/W2109962983","https://openalex.org/W2110115072","https://openalex.org/W2111349105","https://openalex.org/W2111772171","https://openalex.org/W2119877332","https://openalex.org/W2120186527","https://openalex.org/W2120365147","https://openalex.org/W2129771846","https://openalex.org/W2135438735","https://openalex.org/W2151027523","https://openalex.org/W2157989362","https://openalex.org/W2162370583","https://openalex.org/W2165943096","https://openalex.org/W2293033173","https://openalex.org/W2949738325","https://openalex.org/W3104985379","https://openalex.org/W3105082206","https://openalex.org/W6606494463"],"related_works":["https://openalex.org/W2059045613","https://openalex.org/W2724724053","https://openalex.org/W2119209917","https://openalex.org/W4220680272","https://openalex.org/W2088352174","https://openalex.org/W884630482","https://openalex.org/W2145047504","https://openalex.org/W2147127144","https://openalex.org/W2588790930","https://openalex.org/W2344350961"],"abstract_inverted_index":{"We":[0,20,31,96],"study":[1],"the":[2,23,34,54,67,80,90,98,105,113,132,137,142,148,157,163,169,183,190],"degrees":[3],"of":[4,8,37,92,104,107,150,159,182],"freedom":[5],"(DoF)":[6],"regions":[7],"two-user":[9],"multiple-input":[10],"multiple-output":[11],"Z":[12,38],"and":[13,62,111,185],"full":[14,49],"interference":[15,39,50],"channels":[16],"in":[17,116,129,166],"this":[18,76],"paper.":[19],"assume":[21],"that":[22,66,86,118],"receivers":[24],"always":[25],"have":[26],"perfect":[27],"channel":[28,40,42,51],"state":[29,43],"information.":[30],"first":[32],"derive":[33],"DoF":[35,55,99,117,143,191],"region":[36,56,100,144],"with":[41],"information":[44],"at":[45,153,162],"transmitter":[46,88],"(CSIT).":[47],"For":[48],"without":[52],"CSIT,":[53],"has":[57,89],"been":[58],"fully":[59],"characterized":[60],"recently":[61],"it":[63],"is":[64,72,126,145,152,173],"shown":[65,127],"previously":[68],"known":[69],"outer":[70,171],"bound":[71,172],"not":[73],"achievable.":[74],"In":[75,139,175],"paper,":[77],"we":[78,178],"investigate":[79],"no-CSIT":[81],"case":[82,168],"further":[83],"by":[84],"assuming":[85],"one":[87],"ability":[91],"antenna":[93,109,121],"mode":[94,122],"switching.":[95],"obtain":[97],"as":[101],"a":[102],"function":[103],"number":[106,149,158],"available":[108],"modes":[110,151],"reveal":[112],"incremental":[114],"gain":[115],"each":[119],"additional":[120],"can":[123,135],"bring.":[124],"It":[125],"that,":[128],"certain":[130],"cases,":[131,141,177],"reconfigurable":[133],"antennas":[134,161],"increase":[136],"DoF.":[138],"these":[140],"maximized":[146],"when":[147],"least":[154],"equal":[155],"to":[156],"receive":[160],"corresponding":[164],"receiver,":[165],"which":[167],"previous":[170],"achieved.":[174],"all":[176],"propose":[179],"systematic":[180],"constructions":[181,194],"beamforming":[184],"nulling":[186],"matrices":[187],"for":[188],"achieving":[189],"region.":[192],"The":[193],"bear":[195],"an":[196],"interesting":[197],"space-frequency":[198],"coding":[199],"interpretation.":[200]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":6},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":3}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}