{"id":"https://openalex.org/W4241350117","doi":"https://doi.org/10.1109/glocom.2013.6831353","title":"On the degrees of freedom of two-hop MISO broadcast networks with mixed CSIT","display_name":"On the degrees of freedom of two-hop MISO broadcast networks with mixed CSIT","publication_year":2013,"publication_date":"2013-12-01","ids":{"openalex":"https://openalex.org/W4241350117","doi":"https://doi.org/10.1109/glocom.2013.6831353"},"language":"en","primary_location":{"id":"doi:10.1109/glocom.2013.6831353","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2013.6831353","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2013 IEEE Global Communications Conference (GLOBECOM)","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/A5100434529","display_name":"Zhao Wang","orcid":"https://orcid.org/0000-0002-0535-6829"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":true,"raw_author_name":"Zhao Wang","raw_affiliation_strings":["Communication Theory Lab, Royal Institute of Technology (KTH), Stockholm, Sweden"],"affiliations":[{"raw_affiliation_string":"Communication Theory Lab, Royal Institute of Technology (KTH), Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037292846","display_name":"Ming Xiao","orcid":"https://orcid.org/0000-0002-5407-0835"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Ming Xiao","raw_affiliation_strings":["Communication Theory Lab, Royal Institute of Technology (KTH), Stockholm, Sweden"],"affiliations":[{"raw_affiliation_string":"Communication Theory Lab, Royal Institute of Technology (KTH), Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100406988","display_name":"Chao Wang","orcid":"https://orcid.org/0000-0002-4548-3697"},"institutions":[{"id":"https://openalex.org/I116953780","display_name":"Tongji University","ror":"https://ror.org/03rc6as71","country_code":"CN","type":"education","lineage":["https://openalex.org/I116953780"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chao Wang","raw_affiliation_strings":["School of Electronics and Information Engineering, Tongji University, Shanghai, China"],"affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Tongji University, Shanghai, China","institution_ids":["https://openalex.org/I116953780"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5041348422","display_name":"Mikael Skoglund","orcid":"https://orcid.org/0000-0002-7926-5081"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Mikael Skoglund","raw_affiliation_strings":["Communication Theory Lab, Royal Institute of Technology (KTH), Stockholm, Sweden"],"affiliations":[{"raw_affiliation_string":"Communication Theory Lab, Royal Institute of Technology (KTH), Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5100434529"],"corresponding_institution_ids":["https://openalex.org/I86987016"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.4430906,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"16","issue":null,"first_page":"1909","last_page":"1914"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"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"}},"topics":[{"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/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/T12791","display_name":"Full-Duplex Wireless Communications","score":0.9991999864578247,"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/transmitter","display_name":"Transmitter","score":0.7200050354003906},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.6640303134918213},{"id":"https://openalex.org/keywords/hop","display_name":"Hop (telecommunications)","score":0.6551002860069275},{"id":"https://openalex.org/keywords/degrees-of-freedom","display_name":"Degrees of freedom (physics and chemistry)","score":0.5792161226272583},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5684555768966675},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.5486649870872498},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.5455113053321838},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.48375964164733887},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.4822269380092621},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.46122318506240845},{"id":"https://openalex.org/keywords/imperfect","display_name":"Imperfect","score":0.4205659031867981},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.3631798326969147},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.32612136006355286},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3175424337387085},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2687048614025116},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.23410165309906006},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.15454614162445068},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.13270869851112366}],"concepts":[{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.7200050354003906},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.6640303134918213},{"id":"https://openalex.org/C25906391","wikidata":"https://www.wikidata.org/wiki/Q1432381","display_name":"Hop (telecommunications)","level":2,"score":0.6551002860069275},{"id":"https://openalex.org/C208081375","wikidata":"https://www.wikidata.org/wiki/Q274502","display_name":"Degrees of freedom (physics and chemistry)","level":2,"score":0.5792161226272583},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5684555768966675},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.5486649870872498},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.5455113053321838},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.48375964164733887},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.4822269380092621},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.46122318506240845},{"id":"https://openalex.org/C2780310539","wikidata":"https://www.wikidata.org/wiki/Q12547192","display_name":"Imperfect","level":2,"score":0.4205659031867981},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.3631798326969147},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.32612136006355286},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3175424337387085},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2687048614025116},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.23410165309906006},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.15454614162445068},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.13270869851112366},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","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},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/glocom.2013.6831353","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2013.6831353","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2013 IEEE Global Communications Conference (GLOBECOM)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.6200000047683716,"id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W1965669700","https://openalex.org/W2057068800","https://openalex.org/W2108850836","https://openalex.org/W2116141601","https://openalex.org/W2124982134","https://openalex.org/W2141748307","https://openalex.org/W4293005804","https://openalex.org/W4362230038"],"related_works":["https://openalex.org/W2548963335","https://openalex.org/W2159941915","https://openalex.org/W1995129237","https://openalex.org/W4388081250","https://openalex.org/W4313028534","https://openalex.org/W4250958385","https://openalex.org/W2165992111","https://openalex.org/W2111349105","https://openalex.org/W2949201263","https://openalex.org/W1965669700"],"abstract_inverted_index":{"We":[0,21],"consider":[1],"a":[2,9,99],"downlink":[3],"two-hop":[4],"MISO":[5],"broadcast":[6],"network":[7],"with":[8,35],"2-antenna":[10],"source":[11],"communicating":[12],"to":[13],"2":[14,18],"single-antenna":[15,19],"destinations,":[16],"via":[17],"relays.":[20],"investigate":[22],"spectrally":[23],"efficient":[24],"transmission":[25,76,119],"and":[26,50,79],"the":[27,41,55,58,62,75,88,118],"associated":[28],"achievable":[29],"sum":[30,89,128],"degrees":[31],"of":[32,46,57,61,68,123],"freedom":[33],"(DoF)":[34],"mixed":[36],"channel":[37],"state":[38],"information":[39],"at":[40],"transmitter":[42],"(CSIT),":[43],"which":[44],"consists":[45],"perfect":[47],"delayed":[48,113],"CSIT":[49,64],"imperfect":[51,115],"instantaneous":[52,63,116],"CSIT.":[53],"When":[54],"variance":[56],"estimation":[59],"error":[60],"lies":[65],"on":[66],"level":[67],"O(P":[69],"<sup":[70],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[71],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">-\u03b1</sup>":[72],")":[73],"for":[74],"power":[77],"P":[78],"some":[80],"\u03b1":[81],"\u2208":[82,92],"[0,":[83],"1],":[84],"we":[85],"show":[86],"that":[87,108],"DoF":[90],"4-2\u03b1/3-2\u03b1":[91],"[4/3,":[93],"2]":[94],"can":[95,125],"be":[96],"achieved":[97],"by":[98],"novel":[100],"interference":[101],"alignment":[102],"(IA)":[103],"scheme.":[104],"The":[105],"result":[106],"shows":[107],"rather":[109],"than":[110],"exploiting":[111],"only":[112],"or":[114],"CSIT,":[117],"design":[120],"taking":[121],"advantages":[122],"both":[124],"achieve":[126],"higher":[127],"DoF.":[129]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}