{"id":"https://openalex.org/W2613508458","doi":"https://doi.org/10.1109/wcnc.2017.7925917","title":"Optimal DoF and Closed-Form IA Design for K-User MIMO-OFDM Systems","display_name":"Optimal DoF and Closed-Form IA Design for K-User MIMO-OFDM Systems","publication_year":2017,"publication_date":"2017-03-01","ids":{"openalex":"https://openalex.org/W2613508458","doi":"https://doi.org/10.1109/wcnc.2017.7925917","mag":"2613508458"},"language":"en","primary_location":{"id":"doi:10.1109/wcnc.2017.7925917","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcnc.2017.7925917","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2017 IEEE Wireless Communications and Networking Conference (WCNC)","raw_type":"proceedings-article"},"type":"conference-paper","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/A5031637834","display_name":"Weihua Liu","orcid":"https://orcid.org/0000-0001-5748-3021"},"institutions":[{"id":"https://openalex.org/I4210165038","display_name":"University of Chinese Academy of Sciences","ror":"https://ror.org/05qbk4x57","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210165038"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weihua Liu","raw_affiliation_strings":["University of Chinese Academy of Sciences, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210165038"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101569259","display_name":"Weihua Zhou","orcid":"https://orcid.org/0000-0003-2018-265X"},"institutions":[{"id":"https://openalex.org/I4210165038","display_name":"University of Chinese Academy of Sciences","ror":"https://ror.org/05qbk4x57","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210165038"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weihua Zhou","raw_affiliation_strings":["University of Chinese Academy of Sciences, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210165038"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100347221","display_name":"Ying Wang","orcid":"https://orcid.org/0000-0003-2524-9796"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210156404","display_name":"Institute of Information Engineering","ror":"https://ror.org/04r53se39","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210156404"]},{"id":"https://openalex.org/I4210165038","display_name":"University of Chinese Academy of Sciences","ror":"https://ror.org/05qbk4x57","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210165038"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ying Wang","raw_affiliation_strings":["Institute of Information Engineering Chinese Academy of Sciences, Beijing, Beijing, CN","University of Chinese Academy of Sciences, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Information Engineering Chinese Academy of Sciences, Beijing, Beijing, CN","institution_ids":["https://openalex.org/I19820366","https://openalex.org/I4210156404"]},{"raw_affiliation_string":"University of Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210165038"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037155371","display_name":"Xingwei Li","orcid":"https://orcid.org/0000-0002-8853-356X"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210156404","display_name":"Institute of Information Engineering","ror":"https://ror.org/04r53se39","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210156404"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xingwei Li","raw_affiliation_strings":["Institute of Information Engineering, Chinese Academy of Sciences, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Information Engineering, Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I19820366","https://openalex.org/I4210156404"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5060385264","display_name":"Yongming Wang","orcid":"https://orcid.org/0000-0001-8287-6986"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210156404","display_name":"Institute of Information Engineering","ror":"https://ror.org/04r53se39","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210156404"]},{"id":"https://openalex.org/I4210165038","display_name":"University of Chinese Academy of Sciences","ror":"https://ror.org/05qbk4x57","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210165038"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yongming Wang","raw_affiliation_strings":["Institute of Information Engineering Chinese Academy of Sciences, Beijing, Beijing, CN","University of Chinese Academy of Sciences, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Information Engineering Chinese Academy of Sciences, Beijing, Beijing, CN","institution_ids":["https://openalex.org/I19820366","https://openalex.org/I4210156404"]},{"raw_affiliation_string":"University of Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210165038"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","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/T10148","display_name":"Advanced MIMO Systems Optimization","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/T10125","display_name":"Advanced Wireless Communication Techniques","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":0.9998000264167786,"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/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.8004462718963623},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.7654455900192261},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7455006241798401},{"id":"https://openalex.org/keywords/mimo-ofdm","display_name":"MIMO-OFDM","score":0.7127479314804077},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5899662375450134},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.5314651131629944},{"id":"https://openalex.org/keywords/multiplexing","display_name":"Multiplexing","score":0.5129189491271973},{"id":"https://openalex.org/keywords/multi-user-mimo","display_name":"Multi-user MIMO","score":0.5058302879333496},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.485493928194046},{"id":"https://openalex.org/keywords/interference-alignment","display_name":"Interference alignment","score":0.48304253816604614},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4671230912208557},{"id":"https://openalex.org/keywords/diagonal","display_name":"Diagonal","score":0.4633595943450928},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.45522698760032654},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.43837428092956543},{"id":"https://openalex.org/keywords/spatial-multiplexing","display_name":"Spatial multiplexing","score":0.418946236371994},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.41528066992759705},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3219336271286011},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2281111478805542},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.07024276256561279}],"concepts":[{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.8004462718963623},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.7654455900192261},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7455006241798401},{"id":"https://openalex.org/C130946814","wikidata":"https://www.wikidata.org/wiki/Q5988271","display_name":"MIMO-OFDM","level":4,"score":0.7127479314804077},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5899662375450134},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.5314651131629944},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.5129189491271973},{"id":"https://openalex.org/C91330434","wikidata":"https://www.wikidata.org/wiki/Q738298","display_name":"Multi-user MIMO","level":4,"score":0.5058302879333496},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.485493928194046},{"id":"https://openalex.org/C2982854036","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference alignment","level":4,"score":0.48304253816604614},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4671230912208557},{"id":"https://openalex.org/C130367717","wikidata":"https://www.wikidata.org/wiki/Q189791","display_name":"Diagonal","level":2,"score":0.4633595943450928},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.45522698760032654},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.43837428092956543},{"id":"https://openalex.org/C85884896","wikidata":"https://www.wikidata.org/wiki/Q7574075","display_name":"Spatial multiplexing","level":4,"score":0.418946236371994},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.41528066992759705},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3219336271286011},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2281111478805542},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.07024276256561279},{"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/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","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}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/wcnc.2017.7925917","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcnc.2017.7925917","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2017 IEEE Wireless Communications and Networking Conference (WCNC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.7799999713897705,"display_name":"Peace, Justice and strong institutions","id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":24,"referenced_works":["https://openalex.org/W1571456988","https://openalex.org/W1973327411","https://openalex.org/W1976183747","https://openalex.org/W1979408141","https://openalex.org/W1982516830","https://openalex.org/W1996978435","https://openalex.org/W2003070244","https://openalex.org/W2004163229","https://openalex.org/W2004278492","https://openalex.org/W2048309032","https://openalex.org/W2050115247","https://openalex.org/W2054692642","https://openalex.org/W2089863805","https://openalex.org/W2098363461","https://openalex.org/W2119534334","https://openalex.org/W2132821178","https://openalex.org/W2136608712","https://openalex.org/W2138617844","https://openalex.org/W2143136321","https://openalex.org/W2327182705","https://openalex.org/W2963396757","https://openalex.org/W3099820957","https://openalex.org/W3106157089","https://openalex.org/W6649693911"],"related_works":["https://openalex.org/W1517014499","https://openalex.org/W2402142910","https://openalex.org/W4383558088","https://openalex.org/W2101125413","https://openalex.org/W2132885812","https://openalex.org/W1972642807","https://openalex.org/W2216248654","https://openalex.org/W2141031289","https://openalex.org/W3146142998","https://openalex.org/W2037344163"],"abstract_inverted_index":{"Combining":[0],"multiple-input":[1],"multiple-output":[2],"(MIMO)":[3],"and":[4,22,72,92],"orthogonal":[5],"frequency-division":[6],"multiplexing":[7],"(OFDM)":[8],"techniques,":[9],"interference":[10],"alignment":[11],"(IA)":[12],"enables":[13],"concurrent":[14],"transmission":[15],"of":[16,37,58,95,103],"multiple":[17],"data":[18],"streams":[19],"with":[20],"interference-free,":[21],"enormously":[23],"enhances":[24],"the":[25,34,41,54,69,80,93],"system":[26],"throughput.":[27],"In":[28],"this":[29],"paper,":[30],"we":[31,67,83],"first":[32],"explore":[33],"channel":[35],"character":[36],"diagonal-block,":[38],"to":[39],"achieve":[40],"optimal":[42],"DoF":[43],"using":[44],"IA":[45],"in":[46,89],"$K$-user":[47],"MIMO-OFDM":[48],"systems.":[49],"With":[50],"finite":[51],"frequency":[52],"extensions,":[53],"total":[55],"normalized":[56],"degree":[57],"freedom":[59],"(DoF)":[60],"can":[61],"be":[62],"achieved":[63,84],"by":[64],"$\\frac{K}{2}$.":[65],"Furthermore,":[66],"provide":[68],"closed-form":[70,96],"precoding":[71],"filtering":[73],"matrices,":[74],"without":[75],"complex":[76],"iteration.":[77],"Simulation":[78],"reveals":[79],"sum-rate":[81],"performance":[82],"is":[85,98],"higher":[86],"than":[87,101],"that":[88,102],"previous":[90],"works,":[91],"complexity":[94],"solution":[97],"much":[99],"lower":[100],"iterative":[104],"algorithms.":[105]},"counts_by_year":[{"year":2020,"cited_by_count":1}],"updated_date":"2026-07-22T07:51:19.307946","created_date":"2025-10-10T00:00:00"}
